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zzaappp
Apprentice
Apprentice


Joined: 06 Jun 2003
Posts: 176

PostPosted: Sun Nov 13, 2005 4:58 am    Post subject: Speed/performance test Reply with quote

I have a program I wrote a couple years ago that gave me an idea roughly how long it takes for a program to "wake up" after its gone to sleep. The test was an integral part of kernel response as it applied to yet another program I wrote that acts as a TCP server, responding to connected client requests. In that (larger) application, the service sleeps until there's a message at which time it wakes up, does some thinking, and responds as quickly as possible. Back in the days of the 2.4 kernel, with the HZ patch, I was getting numbers far faster than I get now with the gentoo-sources 2.6 kernel.

Well, after laying dormant a long time, that TCP server is an issue again and I need to find a way to make the kernel respond faster to sleep-to-wake processes, and I can't seem to get the 2.6 AMD64 kernel to perform better. I was hoping some folks out there using the AMD64 wouldn't mind compiling and running the following program and give me their results:

Code:
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <sys/timeb.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/times.h>
#include <signal.h>
#include <errno.h>

unsigned long milsec(void)
{
  struct timeval  tv;
  struct timezone tz;

  if( gettimeofday( &tv,&tz ) == -1 )
    return( 0 );
  return( tv.tv_usec + (tv.tv_sec*1000*1000));
}

int main(int argc,char *argv[])
{
  char B1[102400];
  char B2[102400];
  unsigned long         Start,Stop;
  int                   count,iterations=1000,index;
  const struct timeval  orig={0,1};
  struct timeval        tv;

  for(Start=milsec(),count=0; count<iterations; ++count)
  {
    memcpy(&tv,&orig,sizeof(tv));
    select(0,NULL,NULL,NULL,&tv);
  }
  Stop  = milsec();
  printf("TICK  :  Iterations[%d] Delta[%lu] Avg[%lu]\n",iterations,Stop-Start,(Stop-Start)/iterations);

  for(Start=milsec(),count=0; count<iterations; ++count)
  {
    for(index=0; index<sizeof(B1); ++index)
      B2[index] = B1[index];
  }
  Stop  = milsec();
  printf("MEMCPY:  Iterations[%d] Delta[%lu] Avg[%lu]\n",iterations,Stop-Start,(Stop-Start)/iterations);
}


Here's my current AMD64 numbers:
Code:
TICK  : Iterations[1000] Delta[999101] Avg[999]
MEMCPY: Iterations[1000] Delta[116871] Avg[116]

For Delta and Avg, a lower score than mine is better.

If you copy/paste the program into the file, ticks.c, you could compile and run it with:

Code:
% gcc ticks.c
% a.out
TICK  : Iterations[1000] Delta[999101] Avg[999]
MEMCPY: Iterations[1000] Delta[116871] Avg[116]



And if you get numbers that beat mine, I would really, really appreciate your .config file (if you are using gentoo-sources), or else tips on how you built your kernel (which one, which patches, etc).



Many thanks!

-z


Last edited by zzaappp on Sun Nov 13, 2005 7:02 pm; edited 1 time in total
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energyman76b
Advocate
Advocate


Joined: 26 Mar 2003
Posts: 2025
Location: Germany

PostPosted: Sun Nov 13, 2005 5:50 am    Post subject: Reply with quote

Hi,

beat = lower or higher?

here are mine:
./a.out
TICK : Iterations[1000] Delta[9993811] Avg[9993]
MEMCPY: Iterations[1000] Delta[1346904] Avg[1346]

uname -a
Linux energy 2.6.14-gentoo-r2 #1 Sat Nov 12 19:25:11 CET 2005 x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.14-gentoo-r2
# Sat Nov 12 19:20:24 2005
#
CONFIG_X86_64=y
CONFIG_64BIT=y
CONFIG_X86=y
CONFIG_SEMAPHORE_SLEEPERS=y
CONFIG_MMU=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_X86_CMPXCHG=y
CONFIG_EARLY_PRINTK=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32

#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_HOTPLUG=y
CONFIG_KOBJECT_UEVENT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y

#
# Processor type and features
#
CONFIG_MK8=y
# CONFIG_MPSC is not set
# CONFIG_GENERIC_CPU is not set
CONFIG_X86_L1_CACHE_BYTES=64
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_GOOD_APIC=y
# CONFIG_MICROCODE is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_MTRR=y
# CONFIG_SMP is not set
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
# CONFIG_NUMA is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_SPARSEMEM_STATIC is not set
CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
CONFIG_HPET_TIMER=y
CONFIG_X86_PM_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_GART_IOMMU=y
CONFIG_SWIOTLB=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_PHYSICAL_START=0x100000
# CONFIG_KEXEC is not set
CONFIG_SECCOMP=y
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_ISA_DMA_API=y

#
# Power management options
#
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_SOFTWARE_SUSPEND is not set

#
# ACPI (Advanced Configuration and Power Interface) Support
#
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_SLEEP_PROC_FS=y
# CONFIG_ACPI_SLEEP_PROC_SLEEP is not set
# CONFIG_ACPI_AC is not set
# CONFIG_ACPI_BATTERY is not set
CONFIG_ACPI_BUTTON=y
# CONFIG_ACPI_VIDEO is not set
# CONFIG_ACPI_HOTKEY is not set
CONFIG_ACPI_FAN=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_ASUS is not set
# CONFIG_ACPI_IBM is not set
CONFIG_ACPI_TOSHIBA=y
CONFIG_ACPI_BLACKLIST_YEAR=2001
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
# CONFIG_ACPI_CONTAINER is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y

#
# CPUFreq processor drivers
#
CONFIG_X86_POWERNOW_K8=y
CONFIG_X86_POWERNOW_K8_ACPI=y
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_ACPI_CPUFREQ=y

#
# shared options
#
CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y
# CONFIG_X86_SPEEDSTEP_LIB is not set

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_UNORDERED_IO=y
CONFIG_PCIEPORTBUS=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_LEGACY_PROC is not set
# CONFIG_PCI_DEBUG is not set

#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set

#
# PCI Hotplug Support
#
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m
CONFIG_IA32_EMULATION=y
CONFIG_IA32_AOUT=y
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_UID16=y

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_BIC=y
# CONFIG_IPV6 is not set
# CONFIG_NETFILTER is not set

#
# DCCP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP is not set

#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
CONFIG_BT=m
CONFIG_BT_L2CAP=m
CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=m

#
# Bluetooth device drivers
#
CONFIG_BT_HCIUSB=m
CONFIG_BT_HCIUSB_SCO=y
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_BCSP_TXCRC=y
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIVHCI=m
# CONFIG_IEEE80211 is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set

#
# Connector - unified userspace <-> kernelspace linker
#
# CONFIG_CONNECTOR is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Plug and Play support
#
CONFIG_PNP=y
# CONFIG_PNP_DEBUG is not set

#
# Protocols
#
CONFIG_PNPACPI=y

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_BLK_DEV_RAM_COUNT=16
# CONFIG_LBD is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=16
# CONFIG_CDROM_PKTCDVD_WCACHE is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_ATA_OVER_ETH is not set

#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_BLK_DEV_HD_IDE is not set
CONFIG_BLK_DEV_IDEDISK=y
# CONFIG_IDEDISK_MULTI_MODE is not set
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
CONFIG_BLK_DEV_ALI15X3=y
# CONFIG_WDC_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_ARM is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=m
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI Transport Attributes
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_SATA=m
CONFIG_SCSI_SATA_AHCI=m
# CONFIG_SCSI_SATA_SVW is not set
# CONFIG_SCSI_ATA_PIIX is not set
# CONFIG_SCSI_SATA_MV is not set
# CONFIG_SCSI_SATA_NV is not set
# CONFIG_SCSI_SATA_PROMISE is not set
# CONFIG_SCSI_SATA_QSTOR is not set
# CONFIG_SCSI_SATA_SX4 is not set
# CONFIG_SCSI_SATA_SIL is not set
# CONFIG_SCSI_SATA_SIS is not set
CONFIG_SCSI_SATA_ULI=m
# CONFIG_SCSI_SATA_VIA is not set
# CONFIG_SCSI_SATA_VITESSE is not set
CONFIG_SCSI_SATA_INTEL_COMBINED=y
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_IPS is not set
CONFIG_SCSI_INITIO=m
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA2XXX=y
# CONFIG_SCSI_QLA21XX is not set
# CONFIG_SCSI_QLA22XX is not set
# CONFIG_SCSI_QLA2300 is not set
# CONFIG_SCSI_QLA2322 is not set
# CONFIG_SCSI_QLA6312 is not set
# CONFIG_SCSI_QLA24XX is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set

#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
# CONFIG_FUSION_SPI is not set
# CONFIG_FUSION_FC is not set
# CONFIG_FUSION_SAS is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set

#
# I2O device support
#
# CONFIG_I2O is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_NET_SB1000 is not set

#
# ARCnet devices
#
# CONFIG_ARCNET is not set

#
# PHY device support
#
CONFIG_PHYLIB=m
CONFIG_PHYCONTROL=y

#
# MII PHY device drivers
#
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set

#
# Tulip family network device support
#
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
# CONFIG_TULIP is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
CONFIG_ULI526X=m
# CONFIG_HP100 is not set
# CONFIG_NET_PCI is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2 is not set

#
# Ethernet (10000 Mbit)
#
# CONFIG_CHELSIO_T1 is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=m
CONFIG_RTC=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
# CONFIG_AGP_INTEL is not set
# CONFIG_DRM is not set
# CONFIG_MWAVE is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
# CONFIG_HPET_RTC_IRQ is not set
CONFIG_HPET_MMAP=y
CONFIG_HANGCHECK_TIMER=m

#
# TPM devices
#
# CONFIG_TCG_TPM is not set

#
# I2C support
#
CONFIG_I2C=m
CONFIG_I2C_CHARDEV=m

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=m
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set

#
# I2C Hardware Bus support
#
CONFIG_I2C_ALI1535=m
CONFIG_I2C_ALI1563=m
CONFIG_I2C_ALI15X3=m
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_I810 is not set
# CONFIG_I2C_PIIX4 is not set
CONFIG_I2C_ISA=m
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_PROSAVAGE is not set
# CONFIG_I2C_SAVAGE4 is not set
# CONFIG_SCx200_ACB is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
# CONFIG_I2C_VOODOO3 is not set
# CONFIG_I2C_PCA_ISA is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_SENSORS_DS1337 is not set
# CONFIG_SENSORS_DS1374 is not set
CONFIG_SENSORS_EEPROM=m
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_RTC8564 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set

#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set

#
# Hardware Monitoring support
#
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_FSCHER is not set
# CONFIG_SENSORS_FSCPOS is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Misc devices
#
# CONFIG_IBM_ASM is not set

#
# Multimedia Capabilities Port drivers
#

#
# Multimedia devices
#
CONFIG_VIDEO_DEV=m

#
# Video For Linux
#

#
# Video Adapters
#
CONFIG_VIDEO_BT848=m
# CONFIG_VIDEO_SAA6588 is not set
# CONFIG_VIDEO_CPIA is not set
# CONFIG_VIDEO_SAA5246A is not set
# CONFIG_VIDEO_SAA5249 is not set
# CONFIG_TUNER_3036 is not set
# CONFIG_VIDEO_STRADIS is not set
# CONFIG_VIDEO_ZORAN is not set
# CONFIG_VIDEO_SAA7134 is not set
# CONFIG_VIDEO_MXB is not set
# CONFIG_VIDEO_DPC is not set
# CONFIG_VIDEO_HEXIUM_ORION is not set
# CONFIG_VIDEO_HEXIUM_GEMINI is not set
# CONFIG_VIDEO_CX88 is not set
# CONFIG_VIDEO_OVCAMCHIP is not set

#
# Radio Adapters
#
# CONFIG_RADIO_GEMTEK_PCI is not set
# CONFIG_RADIO_MAXIRADIO is not set
# CONFIG_RADIO_MAESTRO is not set

#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
CONFIG_VIDEO_TUNER=m
CONFIG_VIDEO_BUF=m
CONFIG_VIDEO_BTCX=m
CONFIG_VIDEO_IR=m
CONFIG_VIDEO_TVEEPROM=m

#
# Graphics support
#
CONFIG_FB=y
# CONFIG_FB_CFB_FILLRECT is not set
# CONFIG_FB_CFB_COPYAREA is not set
# CONFIG_FB_CFB_IMAGEBLIT is not set
# CONFIG_FB_SOFT_CURSOR is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_VESA is not set
CONFIG_VIDEO_SELECT=y
# CONFIG_FB_HGA is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON_OLD is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_CYBLA is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_GEODE is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_VIRTUAL is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE is not set

#
# Logo configuration
#
# CONFIG_LOGO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
CONFIG_SPEAKUP_DEFAULT="n"

#
# Sound
#
CONFIG_SOUND=y

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_RTCTIMER=m
CONFIG_SND_SEQ_RTCTIMER_DEFAULT=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_GENERIC_DRIVER=y

#
# Generic devices
#
CONFIG_SND_MPU401_UART=m
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_AC97_BUS=m

#
# PCI devices
#
CONFIG_SND_ALI5451=m
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AZT3328 is not set
CONFIG_SND_BT87X=m
# CONFIG_SND_BT87X_OVERCLOCK is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
CONFIG_SND_INTEL8X0=m
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_HDA_INTEL is not set

#
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_USX2Y is not set

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set

#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_BANDWIDTH is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_ISP116X_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_OBSOLETE_OSS_USB_DRIVER is not set

#
# USB Bluetooth TTY can only be used with disabled Bluetooth subsystem
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set

#
# USB Input Devices
#
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT=y
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
# CONFIG_USB_AIPTEK is not set
# CONFIG_USB_WACOM is not set
# CONFIG_USB_ACECAD is not set
# CONFIG_USB_KBTAB is not set
# CONFIG_USB_POWERMATE is not set
# CONFIG_USB_MTOUCH is not set
# CONFIG_USB_ITMTOUCH is not set
# CONFIG_USB_EGALAX is not set
# CONFIG_USB_YEALINK is not set
# CONFIG_USB_XPAD is not set
# CONFIG_USB_ATI_REMOTE is not set
# CONFIG_USB_KEYSPAN_REMOTE is not set
# CONFIG_USB_APPLETOUCH is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB Multimedia devices
#
# CONFIG_USB_DABUSB is not set
# CONFIG_USB_VICAM is not set
# CONFIG_USB_DSBR is not set
# CONFIG_USB_IBMCAM is not set
# CONFIG_USB_KONICAWC is not set
# CONFIG_USB_OV511 is not set
# CONFIG_USB_SE401 is not set
# CONFIG_USB_SN9C102 is not set
# CONFIG_USB_STV680 is not set
# CONFIG_USB_PWC is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
CONFIG_USB_MON=y

#
# USB port drivers
#

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGETKIT is not set
# CONFIG_USB_PHIDGETSERVO is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TEST is not set

#
# USB DSL modem support
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set

#
# MMC/SD Card support
#
# CONFIG_MMC is not set

#
# InfiniBand support
#
# CONFIG_INFINIBAND is not set

#
# SN Devices
#

#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_INOTIFY=y
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_ZISOFS_FS=m
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=850
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-15"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_RAMFS=y
# CONFIG_RELAYFS_FS is not set

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=y

#
# Profiling support
#
CONFIG_PROFILING=y
CONFIG_OPROFILE=y

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_KERNEL=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_LOG_BUF_SHIFT=18
# CONFIG_DETECT_SOFTLOCKUP is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_FRAME_POINTER is not set
# CONFIG_CHECKING is not set
# CONFIG_INIT_DEBUG is not set
# CONFIG_IOMMU_DEBUG is not set
# CONFIG_KPROBES is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set

#
# Cryptographic options
#
# CONFIG_CRYPTO is not set

#
# Hardware crypto devices
#

#
# Library routines
#
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC32=m
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=m
_________________
AidanJT wrote:

Libertardian denial of reality is wholly unimpressive and unconvincing, and simply serves to demonstrate what a bunch of delusional fools they all are.

Satan's got perfectly toned abs and rocks a c-cup.
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mrtsufo
n00b
n00b


Joined: 31 Mar 2005
Posts: 22

PostPosted: Sun Nov 13, 2005 5:52 am    Post subject: Reply with quote

Cool comparison! I think he wants LOWER not higher. Yours took 10x longer than his. He is looking for a faster "sleep to wake" on the kernel. This is interesting...............
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ziegs
Tux's lil' helper
Tux's lil' helper


Joined: 29 Apr 2004
Posts: 119

PostPosted: Sun Nov 13, 2005 6:28 am    Post subject: Reply with quote

well, mine aren't better, but oh well.

uname -a output:
Linux euclid 2.6.14-rc3-nitro1 #1 PREEMPT Mon Oct 31 01:27:06 EST 2005 x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux

TICK : Iterations[1000] Delta[1026119] Avg[1026]
MEMCPY: Iterations[1000] Delta[1445568] Avg[1445]

...and for kicks i did it on my mac, a g4 powerbook, 1ghz:

uname -a output:
Darwin ziegsmac.local 8.2.0 Darwin Kernel Version 8.2.0: Fri Jun 24 17:46:54 PDT 2005; root:xnu-792.2.4.obj~3/RELEASE_PPC Power Macintosh powerpc

TICK : Iterations[1000] Delta[10903310] Avg[10903]
MEMCPY: Iterations[1000] Delta[2567890] Avg[2567]


enjoy, good luck
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updatelee
n00b
n00b


Joined: 04 Nov 2005
Posts: 30

PostPosted: Sun Nov 13, 2005 6:45 am    Post subject: Reply with quote

uname -a
Linux localhost 2.6.14.1 #1 PREEMPT Fri Nov 11 22:02:45 PST 2005 x86_64 AMD Sempron(tm) Processor 3000+ AuthenticAMD GNU/Linux
./a.out
TICK : Iterations[1000] Delta[4025920] Avg[4025]
MEMCPY: Iterations[1000] Delta[786706] Avg[786]
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mudrii
l33t
l33t


Joined: 26 Jun 2003
Posts: 789
Location: Singapore

PostPosted: Sun Nov 13, 2005 7:05 am    Post subject: Reply with quote

#./a.out
TICK : Iterations[1000] Delta[4004899] Avg[4004]
MEMCPY: Iterations[1000] Delta[1362386] Avg[1362]
# uname -a
Linux gen2serv 2.6.14-gentoo #4 SMP Fri Nov 4 09:09:02 JST 2005 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ AuthenticAMD GNU/Linux
_________________
www.gentoo.ro
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Tyler_Durden
Apprentice
Apprentice


Joined: 27 Jul 2004
Posts: 161
Location: Germany

PostPosted: Sun Nov 13, 2005 11:19 am    Post subject: Reply with quote

these are mine:

TICK : Iterations[1000] Delta[1004240] Avg[1004]
MEMCPY: Iterations[1000] Delta[554683] Avg[554]

Code:
emerge --info
Portage 2.0.53_rc7 (default-linux/amd64/2005.1, gcc-3.4.4, glibc-2.3.6-r0, 2.6.14-gentoo-r2 x86_64)
=================================================================
System uname: 2.6.14-gentoo-r2 x86_64 AMD Athlon(tm) 64 Processor 4000+
Gentoo Base System version 1.12.0_pre10
dev-lang/python:     2.3.5, 2.4.2
sys-apps/sandbox:    1.2.13
sys-devel/autoconf:  2.13, 2.59-r7
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1
sys-devel/binutils:  2.16.1
sys-devel/libtool:   1.5.20-r1
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="amd64 ~amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=k8 -O3 -pipe -msse3 -ftracer"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/3/share/config /usr/lib64/mozilla/defaults/pref /usr/share/X11/xkb /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/env.d"
CXXFLAGS="-march=k8 -O3 -pipe -msse3 -ftracer"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig distlocks fixpackages sandbox sfperms strict"
GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo"
LANG="de_DE.utf8"
LC_ALL="de_DE.utf8"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="amd64 X aalib aalibacl acpi alsa amd apm arts audiofile avi bash-completion berkdb bitmap-fonts blas bluetooth bzip2 cdb cdr crypt css cups curl dbus dga directfb dpms dri dts dvb dvd dvdr dvdread eds emboss emul-linux-x86 encode esd ethereal exif expat fam fbcon ffmpeg flac font-server foomaticdb fortran gd gdbm gif glut gmp gnome gphoto2 gpm gs gstreamer gtk gtk2 hal howl icq idn ieee1394 imagemagick imlib ipv6 java jpeg junit kde kdeenablefinal lame lapack lcms ldap libcaca live lm_sensors lzw lzw-tiff mad mikmod mng motif mozilla mp3 mpeg musicbrainz nas ncurses nls nptl nptlonly ntfs nvidia offensive ogg oggvorbis opengl pam pcre pdf pdflib perl png ppds python qt quicktime readline recode sblive sdl slang spell sqlite sse3 ssl svg tcltk tcpd tiff truetype truetype-fonts type1-fonts udev unicode usb userlocales v4l vorbis xfs xine xml xml2 xmms xosd xpm xprint xv xvid zlib video_cards_nvidia userland_GNU kernel_linux elibc_glibc"
Unset:  ASFLAGS, CTARGET, LDFLAGS, LINGUAS



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PostPosted: Sun Nov 13, 2005 11:45 am    Post subject: Reply with quote

TICK : Iterations[1000] Delta[1007943] Avg[1007]
MEMCPY: Iterations[1000] Delta[602782] Avg[602]

Linux gertjan 2.6.14 #2 SMP PREEMPT Tue Nov 8 09:16:11 CET 2005 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ AuthenticAMD GNU/Linux

Whatever it means :D
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nxsty
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PostPosted: Sun Nov 13, 2005 12:00 pm    Post subject: Reply with quote

TICK : Iterations[1000] Delta[998996] Avg[998]
MEMCPY: Iterations[1000] Delta[605301] Avg[605]

Beats your TICK avrage with 1. :)

Linux isidor 2.6.14-ck4 #1 Thu Nov 10 22:29:33 UTC 2005 x86_64 AMD Athlon(tm) 64 Processor 3500+ AuthenticAMD GNU/Linux
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PostPosted: Sun Nov 13, 2005 12:59 pm    Post subject: Reply with quote

Code:
TICK  :  Iterations[1000] Delta[999048] Avg[999]
MEMCPY:  Iterations[1000] Delta[122964] Avg[122]

Code:
Linux saidar 2.6.14-mm2 #3 SMP Sun Nov 13 11:13:01 CET 2005 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD GNU/Linux

I'm not getting anywhere near that MEMCPY "score" without some compiler opt. switches though...
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nxsty
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PostPosted: Sun Nov 13, 2005 1:24 pm    Post subject: Reply with quote

mseigneurin wrote:
Code:
TICK  :  Iterations[1000] Delta[999048] Avg[999]
MEMCPY:  Iterations[1000] Delta[122964] Avg[122]

Code:
Linux saidar 2.6.14-mm2 #3 SMP Sun Nov 13 11:13:01 CET 2005 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD GNU/Linux

I'm not getting anywhere near that MEMCPY "score" without some compiler opt. switches though...


Using -O or -O2 increases the memcpy score a lot. So this comparision is not valid unless the same version of gcc is used and no compiler flags as in the initial post.

zzaappp: What gcc version do you use?

EDIT: Btw, just wanted to see how much i could scew the results:

isidor nxsty # gcc ticks.c
isidor nxsty # ./a.out
TICK : Iterations[1000] Delta[998954] Avg[998]
MEMCPY: Iterations[1000] Delta[599136] Avg[599]
isidor nxsty # gcc -O ticks.c
isidor nxsty # ./a.out
TICK : Iterations[1000] Delta[999855] Avg[999]
MEMCPY: Iterations[1000] Delta[141018] Avg[141]
isidor nxsty # gcc -O2 ticks.c
isidor nxsty # ./a.out
TICK : Iterations[1000] Delta[999305] Avg[999]
MEMCPY: Iterations[1000] Delta[94574] Avg[94]
isidor nxsty # gcc -O2 -ffast-math -funroll-loops ticks.c
isidor nxsty # ./a.out
TICK : Iterations[1000] Delta[999782] Avg[999]
MEMCPY: Iterations[1000] Delta[12356] Avg[12]

EDIT2: The same thing with gcc 3.4 instead of 4.0.2:

nxsty@isidor ~ $ gcc ticks.c
nxsty@isidor ~ $ ./a.out
TICK : Iterations[1000] Delta[999826] Avg[999]
MEMCPY: Iterations[1000] Delta[605120] Avg[605]
nxsty@isidor ~ $ gcc -O ticks.c
nxsty@isidor ~ $ ./a.out
TICK : Iterations[1000] Delta[999166] Avg[999]
MEMCPY: Iterations[1000] Delta[182575] Avg[182]
nxsty@isidor ~ $ gcc -O2 ticks.c
nxsty@isidor ~ $ ./a.out
TICK : Iterations[1000] Delta[999514] Avg[999]
MEMCPY: Iterations[1000] Delta[188075] Avg[188]
nxsty@isidor ~ $ gcc -O2 --fast-math -funroll-loops ticks.c
nxsty@isidor ~ $ ./a.out
TICK : Iterations[1000] Delta[998996] Avg[998]
MEMCPY: Iterations[1000] Delta[130487] Avg[130]


Last edited by nxsty on Sun Nov 13, 2005 2:35 pm; edited 1 time in total
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bladus
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PostPosted: Sun Nov 13, 2005 2:30 pm    Post subject: Reply with quote

Code:
TICK  :  Iterations[1000] Delta[1000245] Avg[1000]
MEMCPY:  Iterations[1000] Delta[1187146] Avg[1187]


Code:
Linux arthur 2.6.14-ck1 #4 Fri Nov 11 23:48:40 CET 2005 x86_64 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux


Just "gcc ticks.c" without any -O etc.
Compiled in GCC 3.4.4
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avendesora
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PostPosted: Sun Nov 13, 2005 3:16 pm    Post subject: Reply with quote

BTW, looking at how select works, and if I'm not mistaken, you're not going to
get better than that 1ms average with select used this way.

In the kernel, sys_select calls schedule_timeout which puts a task to sleep for
a given number of jiffies (which I believe are 1/HZ seconds). With HZ=1000,
your minimum timeout with this is thus 1ms.

You could (possibly) get better granularity with pselect.

I'm wondering though what the whole point of this is. The averages showing
here seem to indicate that there is next to no overhead on wakeup after select.
(I see some ~10000 => HZ=100, ~4000 => HZ=250 and ~1000 => HZ=1000)

As for the memcpy thing, well, with nxsty's excellent glibc overlay and gcc 4.0.2:
Code:
gcc -O2 -ffast-math -funroll-loops ticks.c
TICK  :  Iterations[1000] Delta[1000284] Avg[1000]
MEMCPY:  Iterations[1000] Delta[11713] Avg[11]
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PostPosted: Sun Nov 13, 2005 7:03 pm    Post subject: Reply with quote

Yes, lower scores for Delta and Avg are better.

mrtsufo wrote:
Cool comparison! I think he wants LOWER not higher. Yours took 10x longer than his. He is looking for a faster "sleep to wake" on the kernel. This is interesting...............
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zzaappp
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PostPosted: Sun Nov 13, 2005 7:07 pm    Post subject: Reply with quote

No compiler optimizations, please, or its not the same test. I compiled it:

Code:
% gcc ticks.c


-z

mseigneurin wrote:
Code:
TICK  :  Iterations[1000] Delta[999048] Avg[999]
MEMCPY:  Iterations[1000] Delta[122964] Avg[122]

Code:
Linux saidar 2.6.14-mm2 #3 SMP Sun Nov 13 11:13:01 CET 2005 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD GNU/Linux

I'm not getting anywhere near that MEMCPY "score" without some compiler opt. switches though...
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occe
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PostPosted: Sun Nov 13, 2005 7:31 pm    Post subject: Reply with quote

heres mine:

Code:

TICK  :  Iterations[1000] Delta[999388] Avg[999]
MEMCPY:  Iterations[1000] Delta[1329168] Avg[1329]

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PostPosted: Sun Nov 13, 2005 9:03 pm    Post subject: Reply with quote

zzaappp wrote:
No compiler optimizations, please, or its not the same test. I compiled it:


That's why you need to tell what gcc version you are using. Otherwise the results wont be valid either.

FYI this is from suse 10 with the default kernel:
TICK : Iterations[1000] Delta[3998790] Avg[3998]
MEMCPY: Iterations[1000] Delta[1349071] Avg[1349]

So the performance in gentoo is superior in this case.
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PostPosted: Sun Nov 13, 2005 9:48 pm    Post subject: Reply with quote

TICK : Iterations[1000] Delta[999530] Avg[999]
MEMCPY: Iterations[1000] Delta[750448] Avg[750]


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PostPosted: Wed Nov 12, 2008 5:40 am    Post subject: Current results compared? Reply with quote

This is a very interesting thread. I would be very interested in seeing what current results yield with current hardware and Linux versions from different users. Last posts were a few years ago. Also, has anyone ever done this test with recent versions of RedHat and/or SUSE compared to a current version of Gentoo? It would just be interesting to see if performance has increased over the years withe the simply "ticks" test.
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PostPosted: Wed Nov 12, 2008 6:21 am    Post subject: Reply with quote

here you go, mrtsufo
Quote:

gcc version 4.3.2 (Gentoo 4.3.2 p1.0)

~/tmp $ gcc -o ticks ticks.c
~/tmp $ ./ticks
TICK : Iterations[1000] Delta[1028529] Avg[1028]
MEMCPY: Iterations[1000] Delta[1077732] Avg[1077]
~/tmp $ gcc -O2 -o ticks ticks.c
~/tmp $ ./ticks
TICK : Iterations[1000] Delta[1008681] Avg[1008]
MEMCPY: Iterations[1000] Delta[3] Avg[0]
~/tmp $ gcc -O -o ticks ticks.c
~/tmp $ ./ticks
TICK : Iterations[1000] Delta[1030572] Avg[1030]
MEMCPY: Iterations[1000] Delta[2] Avg[0]

Linux localhost 2.6.27-gentoo-r2 #1 SMP PREEMPT Sat Nov 1 09:10:32 CET 2008 x86_64 AMD Opteron(tm) Processor 248 AuthenticAMD GNU/Linux

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PostPosted: Wed Nov 12, 2008 8:58 am    Post subject: Reply with quote

Code:

pholthau@thrall ~ $ uname -a
Linux thrall 2.6.27-gentoo-r2 #1 SMP PREEMPT Mon Nov 3 08:48:39 CET 2008 x86_64 Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz GenuineIntel GNU/Linux
pholthau@thrall ~ $ gcc -o speedtest speedtest.c
pholthau@thrall ~ $ ./speedtest
TICK  :  Iterations[1000] Delta[999358] Avg[999]
MEMCPY:  Iterations[1000] Delta[417091] Avg[417]

Could you tell us, what these results mean? Or maybe how to improve performance? :)
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PostPosted: Wed Nov 12, 2008 3:15 pm    Post subject: Reply with quote

It is interesting to see this get some air-time again. The original TICKS test was a simple way for me to see how fine-grained the kernel scheduler was in the select() implementation. Both select() and pselect() functions have a user-defined timeout period. Unfortunately in the standard kernel the scheduler in play for these functions has less resolution than the timeout parameter of the select/pselect function calls. That means the functions will not wake up the way you expect if you use very small timeout periods. For example, if I set the timeout to 1 nanosecond in pselect(), I could still end up with a wakeup of 1 to 5 milliseconds. If you set the timeout to 1 microsecond in select(), you could still end up with a wakeup of 1 to 5 milliseconds.

There are patches to deal with this issue, and once upon a time Gentoo had them, and that is why I came to Gentoo in the first place. But it appears that the patches for select/pselect have been removed, and now the kernel is back to its slow, imprecise wakeup times (as is evidenced from the posts above).

I have a more current version of TICKS that I am now running which includes both select and pselect tests. Here's the code:
Code:
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include <sys/time.h>
#include <sys/timeb.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/times.h>
#include <signal.h>

#include <errno.h>

unsigned long usec_time(void)
{
  struct timeval  tv;
  struct timezone tz;
  if( gettimeofday( &tv,&tz ) == -1 )
    return( 0 );
  return( tv.tv_usec + (tv.tv_sec*1000*1000));
}

const char* uname(void)
{
  static char  buff[1024];
  FILE* fp=fopen("/proc/version","r");
  if( fp==NULL )
    return( "(OS unknown)" );
  fgets(buff,sizeof(buff),fp);
  return( buff );
}

int main(int argc,char *argv[])
{
  volatile char           B1[102400];
  volatile char           B2[102400];
  volatile unsigned long  Start,Stop;
  volatile int            count,max=1000,index;
  struct timeval          tv;
  struct timespec         tvp;

  if( argc >=2 )
    max = atoi(argv[1]);

  printf("OS:  %s\n",uname());
  /////////////////////////////////////////////////////////
  Start = usec_time();
  for(count=0; count<max; ++count)
  {
    tv.tv_sec  = 0;
    tv.tv_usec = 1;
    select(0,NULL,NULL,NULL,&tv);
  }
  Stop  = usec_time();
  printf("TICK  :  Iterations[%d] Delta[%10lu] Avg[%7.3f]\n",max,Stop-Start,(double)(Stop-Start)/(double)(max));
  /////////////////////////////////////////////////////////
  Start = usec_time();
  for(count=0; count<max; ++count)
  {
    tvp.tv_sec  = 0;
    tvp.tv_nsec = 1;
    pselect(0,NULL,NULL,NULL,&tvp,NULL);
  }
  Stop  = usec_time();
  printf("TICKp :  Iterations[%d] Delta[%10lu] Avg[%7.3f]\n",max,Stop-Start,(double)(Stop-Start)/(double)(max));
  /////////////////////////////////////////////////////////
  Start = usec_time();
  for(count=0; count<max; ++count)
  {
    for(index=0; index<sizeof(B1); ++index)
      B2[index] = B1[index];
  }
  Stop  = usec_time();
  printf("MEMCPY:  Iterations[%d] Delta[%10lu] Avg[%7.3f]\n",max,Stop-Start,(double)(Stop-Start)/(double)(max));
}


The following sample is on an older 2.6 kernel, but it was a gentoo-sources kernel, and it had the better resolution scheduler for pselect:
Code:

OS:  Linux version 2.6.20-gentoo-r8 (root@foghorn) (gcc version 4.1.1 (Gentoo 4.1.1)) #1 Tue Jul 17 10:48:20 EDT 2007
TICK  :  Iterations[1000] Delta[    999720] Avg[999.720]
TICKp :  Iterations[1000] Delta[       265] Avg[  0.265]
MEMCPY:  Iterations[1000] Delta[    559601] Avg[559.601]


The pselect() time is really the sort of response I need, and the only way for me to get it these days is to start with a vanilla-sources kernel and apply the patches myself (if there is a better way, someone PLEASE tell me). This recent slate of tests is showing me that my old kernel is still running a more fine-grained scheduler than the current. I wish there was a way to get the gentoo-sources kernel to include the same scheduler patch from the 2.6.20 because that would make my life a lot easier.
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PostPosted: Wed Nov 12, 2008 3:41 pm    Post subject: Reply with quote

If you look at gentoo-sources, there is nothing applied that somehow influences the scheduler.
http://dev.gentoo.org/~dsd/genpatches/trunk/
Just bugfixes and the standard Gentoo feature set is added (fbcondecor, uvesafb) and it has been like that for the last years.

So that regression is upstream. Maybe introduced by CFS earlier, or by removing the BKL in .26

PS: here the output from a realtime kernel:
Code:
└» ./ticks
OS:  Linux version 2.6.26.6-rt11 (tom@sirius) (gcc version 4.3.2 (Gentoo 4.3.2 p1.0) ) #2 SMP PREEMPT RT Tue Nov 11 10:58:10 CET 2008

TICK  :  Iterations[1000] Delta[   1000450] Avg[1000.450]
TICKp :  Iterations[1000] Delta[   1000585] Avg[1000.585]
MEMCPY:  Iterations[1000] Delta[   1375981] Avg[1375.981]


But I get quite different values if I execute it n times.
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Last edited by gimpel on Wed Nov 12, 2008 3:47 pm; edited 1 time in total
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PostPosted: Wed Nov 12, 2008 3:45 pm    Post subject: Reply with quote

OS: Linux version 2.6.27-gentoo-r2 (root@www) (gcc version 4.3.2 (Gentoo 4.3.2 p1.1) ) #4 SMP Sun Nov 2 10:54:07 EST 2008

TICK : Iterations[1000] Delta[ 3335401] Avg[3335.401]
TICKp : Iterations[1000] Delta[ 3333276] Avg[3333.276]
MEMCPY: Iterations[1000] Delta[ 587129] Avg[587.129]
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PostPosted: Wed Nov 12, 2008 4:13 pm    Post subject: Reply with quote

I'd be interested in seeing this same test run on other distro's like REDHAT, SuSe, Slackware, Mandriva, Mandrake, etc.
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