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DeviantOne
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Joined: 11 Feb 2006
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PostPosted: Sat Feb 11, 2006 12:57 pm    Post subject: Reply with quote

Heya, i have a 160GB 7200RPM Maxtor, VIA PM800/8237 FSB800 motherboard and i'm getting these terrible results:
Code:

/dev/hda:
 Timing cached reads:   2540 MB in  2.00 seconds = 1267.66 MB/sec
 Timing buffered disk reads:   16 MB in  3.26 seconds =   4.91 MB/sec


when i try to set DMA on:
Code:

 hdparm -c 1 -d 1 /dev/hda

/dev/hda:
 setting 32-bit IO_support flag to 1
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 IO_support   =  1 (32-bit)
 using_dma    =  0 (off)


I've set DMA on, before the Gentoo installation (With the installation livecd) and it didn't give me any errors. I suppose that the kernel i use is missing something. I compiled 2.6.12-gentoo-r6 myself, and I clearly remember setting DMA support. Is there a method to fix this without having to compile a new kernel? Please help:)

Code:

x ~ #  hdparm -I /dev/hda

/dev/hda:

ATA device, with non-removable media
        Model Number:       Maxtor 6L160P0
        Serial Number:      L405RWTH
        Firmware Revision:  BAH41E00
Standards:
        Supported: 7 6 5 4
        Likely used: 7
Configuration:
        Logical         max     current
        cylinders       16383   65535
        heads           16      1
        sectors/track   63      63
        --
        CHS current addressable sectors:    4128705
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors:  320173056
        device size with M = 1024*1024:      156334 MBytes
        device size with M = 1000*1000:      163928 MBytes (163 GB)
Capabilities:
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, no device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 16
        Advanced power management level: unknown setting (0x0000)
        Recommended acoustic management value: 192, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    NOP cmd
           *    READ BUFFER cmd
           *    WRITE BUFFER cmd
           *    Host Protected Area feature set
           *    Look-ahead
           *    Write cache
           *    Power Management feature set
                Security Mode feature set
           *    SMART feature set
           *    FLUSH CACHE EXT command
           *    Mandatory FLUSH CACHE command
           *    Device Configuration Overlay feature set
           *    48-bit Address feature set
           *    Automatic Acoustic Management feature set
                SET MAX security extension
                Advanced Power Management feature set
           *    DOWNLOAD MICROCODE cmd
           *    General Purpose Logging feature set
           *    SMART self-test
           *    SMART error logging
Security:
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
                frozen
        not     expired: security count
        not     supported: enhanced erase
HW reset results:
        CBLID- above Vih
        Device num = 0 determined by the jumper
Checksum: correct
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Cintra
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Posts: 2111
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PostPosted: Sat Feb 11, 2006 2:53 pm    Post subject: Reply with quote

surprisingly little about your disk model on the forum..

# lspci would be useful and
# cat /usr/src/linux/.config | grep VIA82
# cat /usr/src/linux/.config | grep DMA
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DeviantOne
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Joined: 11 Feb 2006
Posts: 4

PostPosted: Sat Feb 11, 2006 5:39 pm    Post subject: Reply with quote

Code:

lspci
0000:00:00.0 Host bridge: VIA Technologies, Inc.: Unknown device 0259
0000:00:00.1 Host bridge: VIA Technologies, Inc.: Unknown device 1259
0000:00:00.2 Host bridge: VIA Technologies, Inc.: Unknown device 2259
0000:00:00.3 Host bridge: VIA Technologies, Inc.: Unknown device 3259
0000:00:00.4 Host bridge: VIA Technologies, Inc.: Unknown device 4259
0000:00:00.7 Host bridge: VIA Technologies, Inc.: Unknown device 7259
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
0000:00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
0000:00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
0000:00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
0000:00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
0000:00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
0000:00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
0000:00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
0000:00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
0000:00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800 South]
0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
0000:01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] (rev a1)

Code:

cat /usr/src/linux/.config | grep VIA82
# CONFIG_BLK_DEV_VIA82CXXX is not set
CONFIG_SND_VIA82XX=y
# CONFIG_SND_VIA82XX_MODEM is not set

Code:

CONFIG_GENERIC_ISA_DMA=y
CONFIG_ISA_DMA_API=y
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_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
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Cintra
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Posts: 2111
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PostPosted: Sat Feb 11, 2006 6:35 pm    Post subject: Reply with quote

shouldn't this be set?
# CONFIG_BLK_DEV_VIA82CXXX is not set
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89c51
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Joined: 31 Dec 2005
Posts: 113
Location: Greece

PostPosted: Sat Feb 11, 2006 7:00 pm    Post subject: Reply with quote

i think cintra is right

i had similar problems (couldnt set dma, terrible performance) and i hadn't set via82cxxx in the kernel
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cz0
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Joined: 13 Jun 2005
Posts: 181
Location: /earth/russia/moscow

PostPosted: Sat Feb 11, 2006 7:45 pm    Post subject: Reply with quote

Hm, seems I'am having a problem:
Code:

MiR / # hdparm -u1 -d1 /dev/sda

/dev/sda:
 setting unmaskirq to 1 (on)
 HDIO_SET_UNMASKINTR failed: Inappropriate ioctl for device
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Inappropriate ioctl for device

But I have something like this:
Code:

MiR / # hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   3452 MB in  2.00 seconds = 1725.89 MB/sec
 Timing buffered disk reads:  156 MB in  3.03 seconds =  51.52 MB/sec

Any Ideas how to fix 'Inappropriate ioctl for device'.
P.S. I have Seagate SATA disk on i865 (ICH5) and 2.6.15 kernel.
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albright
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Location: Near Toronto

PostPosted: Sat Feb 11, 2006 10:11 pm    Post subject: hdparm don't work with sata Reply with quote

you can try sdparm but it does not set dma; you shouldn't
need to set it
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DeviantOne
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Joined: 11 Feb 2006
Posts: 4

PostPosted: Tue Feb 14, 2006 4:22 pm    Post subject: hdparm Reply with quote

compiled a new kernel, this time with the VIA82CXXX support on. getting pretty results:

/dev/hda:
Timing cached reads: 2456 MB in 2.00 seconds = 1227.92 MB/sec
Timing buffered disk reads: 164 MB in 3.01 seconds = 54.52 MB/sec
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shickapooka800
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Joined: 05 Dec 2004
Posts: 304
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PostPosted: Wed Mar 22, 2006 8:42 pm    Post subject: Reply with quote

hello, i am back in gentoo since i just got a new machine, but there are kinks....

i have both a WD raptor 74gb 10k rpm drive (presumably SATAII) and a Samsung 7200 rpm 250gb drive (presumably SATA)
they are on the built in SATA channels on an ASUS A8N32-SLI motherboard (which supports SATA RAID and SATAII via a silicon images 3132 chipset).

here are my specifics:
Code:
aphelion ptolomey # sdparm /dev/sda & hdparm -tT /dev/sda
[1] 15341
    /dev/sda: ATA       WDC WD740GD-41FL  31.0

/dev/sda:
Read write error recovery mode page:
  AWRE        1
  ARRE        1
  PER         0
Caching (SBC) mode page:
  WCE         1
  RCD         0
Control mode page:
  SWP         0
 Timing cached reads:   3700 MB in  2.00 seconds = [b]1849.88 MB/sec[/b]
 Timing buffered disk reads:  206 MB in  3.02 seconds =  [b]68.21 MB/sec[/b]
[1]+  Done                    sdparm /dev/sda
aphelion ptolomey # sdparm /dev/sdb & hdparm -tT /dev/sdb
[1] 15343

/dev/sdb:
    /dev/sdb: ATA       SAMSUNG SP2504C   VT10
Read write error recovery mode page:
  AWRE        1
  ARRE        1
  PER         0
Caching (SBC) mode page:
  WCE         1
  RCD         0
Control mode page:
  SWP         0
 Timing cached reads:   3684 MB in  2.00 seconds = 1841.88 MB/sec
 Timing buffered disk reads:  218 MB in  3.02 seconds =  [b]72.09 MB/sec[/b]
[1]+  Done                    sdparm /dev/sdb

now, this is how it always is (it is incredibally consistent). whyis it that the buffered disc readsabove (bold) for the Samsung are always slightly better than that of the Raptor? also, the cached reads look normal for SATA, but remember that the raptor and the motherboard support SATAII, and I have enabled the silicon images driver in the kernel (though it changed nothing! -- same numbers as before). also the bios has a choice between RAID and SATA2 settings for the silicon graphics chipset, and I have selected both SATA2 and'disabled' with no change in results.

I checked some benchmarks on the WD Raptor online and I am indeed getting the correct numbers it seems for buffered reads, but thats very dissapointing that the regular 'ole Samsung 7200rpm is appearently a better performer (i even got it as an open package deal in a bargain bin!!).

if this keeps up and i can't fix it, i may just sell the raptor and get a 10k scsi drive and a U160 controller (because I know I could get slightly faster sppeds with ultra-scsi 160 (and only one drive on the chanel).

any thoughts? any pointers?
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gentoobunny
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Joined: 29 Apr 2006
Posts: 18

PostPosted: Tue Sep 19, 2006 2:15 pm    Post subject: Reply with quote

shickapooka800 wrote:
hello, i am back in gentoo since i just got a new machine, but there are kinks....

i have both a WD raptor 74gb 10k rpm drive (presumably SATAII) and a Samsung 7200 rpm 250gb drive (presumably SATA)
they are on the built in SATA channels on an ASUS A8N32-SLI motherboard (which supports SATA RAID and SATAII via a silicon images 3132 chipset).

here are my specifics:
Code:
aphelion ptolomey # sdparm /dev/sda & hdparm -tT /dev/sda
[1] 15341
    /dev/sda: ATA       WDC WD740GD-41FL  31.0

/dev/sda:
Read write error recovery mode page:
  AWRE        1
  ARRE        1
  PER         0
Caching (SBC) mode page:
  WCE         1
  RCD         0
Control mode page:
  SWP         0
 Timing cached reads:   3700 MB in  2.00 seconds = [b]1849.88 MB/sec[/b]
 Timing buffered disk reads:  206 MB in  3.02 seconds =  [b]68.21 MB/sec[/b]
[1]+  Done                    sdparm /dev/sda
aphelion ptolomey # sdparm /dev/sdb & hdparm -tT /dev/sdb
[1] 15343

/dev/sdb:
    /dev/sdb: ATA       SAMSUNG SP2504C   VT10
Read write error recovery mode page:
  AWRE        1
  ARRE        1
  PER         0
Caching (SBC) mode page:
  WCE         1
  RCD         0
Control mode page:
  SWP         0
 Timing cached reads:   3684 MB in  2.00 seconds = 1841.88 MB/sec
 Timing buffered disk reads:  218 MB in  3.02 seconds =  [b]72.09 MB/sec[/b]
[1]+  Done                    sdparm /dev/sdb

now, this is how it always is (it is incredibally consistent). whyis it that the buffered disc readsabove (bold) for the Samsung are always slightly better than that of the Raptor? also, the cached reads look normal for SATA, but remember that the raptor and the motherboard support SATAII, and I have enabled the silicon images driver in the kernel (though it changed nothing! -- same numbers as before). also the bios has a choice between RAID and SATA2 settings for the silicon graphics chipset, and I have selected both SATA2 and'disabled' with no change in results.

I checked some benchmarks on the WD Raptor online and I am indeed getting the correct numbers it seems for buffered reads, but thats very dissapointing that the regular 'ole Samsung 7200rpm is appearently a better performer (i even got it as an open package deal in a bargain bin!!).

if this keeps up and i can't fix it, i may just sell the raptor and get a 10k scsi drive and a U160 controller (because I know I could get slightly faster sppeds with ultra-scsi 160 (and only one drive on the chanel).

any thoughts? any pointers?

72MB/s for 1 disc is incredible and no single 10k scsi drive will beat that. I honestly even doubt that score to be honest.
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clavko
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Joined: 02 Aug 2008
Posts: 25

PostPosted: Sat Aug 02, 2008 2:24 pm    Post subject: Poor hard drive performance Reply with quote

I've been having some problems, hope you guys & ladies can help :)

OK, HP 6715b notebook, 690G chipset, Sempron 3600+ etc., etc.
Booted from 2007 minimal CD, chrooted, downloaded 2008.0 stage1.
Bootstrapping went fine, elevating keywords to ~x86, --deep system...
All in all it was a really smooth ride so far, no complaints there.

I used vanilla.sources 2.6.26 (although the problem seems rather invariant of kernel version)
Kernel compiled, grub installed, fstab, reboot and ... it takes about 3 minutes to prompt.

I tried hdparm -tT /dev/sda, getting about 160-200 kB/sec on both measurement.
Being a newb, don't know which additional info you need, so please guide me...
and be patient, thanks :D

EDIT

After using nohz=off kernel boot parameter, hard drive performance is normal.
Apparently there is a kernel bug regarding Mobile Sempron processors causing
different problems upon entering deeper C states. The nohz=off is also causing
processor not to reach any C states deeper than C1. Guess you can't have it all :(


Last edited by clavko on Sat Aug 02, 2008 5:17 pm; edited 1 time in total
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nixnut
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PostPosted: Sat Aug 02, 2008 2:38 pm    Post subject: Reply with quote

merged above post here
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