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[Ahci] Lenteur disque dure lors d'un sync et de forte charge
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apocryphe
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Joined: 03 Jul 2005
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Location: 78 - Pres de Saint Germain

PostPosted: Sun Feb 24, 2008 1:49 pm    Post subject: [Ahci] Lenteur disque dure lors d'un sync et de forte charge Reply with quote

Bonjour,


J'ai un probleme lors d'une forte charge sur mon disque dure en AHCI

lors d'un --sync (sur ma partoche xfs), il met 15 minutes, et la mise a jour du cache (le pourcentage quoi ) est vraiment tres lent pour pas beaucoup de fichiers pourtant...

je precise que dans les memes conditions ( sans ahci ) j ai un autre laptop qui tourne au poil... en 1 minute sans saturation...


je pense que le probleme vient de l'AHCI... y a des choses a regler ?

voila mon test de disque dure ( qui veut pas dire grand chose mais bon ca confirme que ca a l air correct ):
Quote:

15:39:12 jerem # hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 2140 MB in 2.00 seconds = 1070.76 MB/sec
Timing buffered disk reads: 130 MB in 3.02 seconds = 43.06 MB/sec


vous avez ma config en signature

ciaoo
_________________
Laptop Dell Inspiron 1520
Intel Core2Duo T7250 - GM965 - 4 Go 667MHz DDR2 - Nvidia 8400 GS (256MiB) - BCM4401- iwlwifi3945 - SD R5C822
~amd64 - GCC 4.4.1 - XFS ahci officiel 2.6.30.4 - Xorg 1.6.2 - kde 4.3 - Nvidia 190.18 - WSXGA+ (1680x1050)
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apocryphe
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Joined: 03 Jul 2005
Posts: 59
Location: 78 - Pres de Saint Germain

PostPosted: Sun Feb 24, 2008 4:51 pm    Post subject: Reply with quote

Pour info j'ai ca dans mon kernel:
Quote:

│ ┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ --- Serial ATA (prod) and Parallel ATA (experimental) drivers │ │
│ │ <*> AHCI SATA support │ │
│ │ < > ServerWorks Frodo / Apple K2 SATA support │ │
│ │ <*> Intel ESB, ICH, PIIX3, PIIX4 PATA/SATA support


et ma config:

Quote:
18:50:15 jerem # lspci
00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 0c)
00:01.0 PCI bridge: Intel Corporation Mobile PCI Express Root Port (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Contoller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation Mobile LPC Interface Controller (rev 02)
00:1f.1 IDE interface: Intel Corporation Mobile IDE Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation Mobile SATA AHCI Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation Unknown device 0427 (rev a1)
03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
03:01.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
03:01.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)

_________________
Laptop Dell Inspiron 1520
Intel Core2Duo T7250 - GM965 - 4 Go 667MHz DDR2 - Nvidia 8400 GS (256MiB) - BCM4401- iwlwifi3945 - SD R5C822
~amd64 - GCC 4.4.1 - XFS ahci officiel 2.6.30.4 - Xorg 1.6.2 - kde 4.3 - Nvidia 190.18 - WSXGA+ (1680x1050)
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nonas
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Joined: 17 Apr 2005
Posts: 328

PostPosted: Sun Feb 24, 2008 6:31 pm    Post subject: Reply with quote

Faudrait voir si ton ICH8 c'est un ICH8 tout court ou un ICH8M/ICH8M-E/ICH8R.
http://www.intel.com/support/chipsets/imst/sb/CS-012304.htm

Faut que je regarde ça aussi d'ailleurs puisque je tourne sur du ICH5.

edit : ça doit être un 8 tout court, chez mon lspci me spécifie bien le -R :
Quote:
# lspci
00:00.0 Host bridge: Intel Corporation 82875P/E7210 Memory Controller Hub (rev 02)
00:01.0 PCI bridge: Intel Corporation 82875P Processor to AGP Controller (rev 02)
00:03.0 PCI bridge: Intel Corporation 82875P/E7210 Processor to PCI to CSA Bridge (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R350 [Radeon 9800 Pro]
01:00.1 Display controller: ATI Technologies Inc Radeon R350 [Radeon 9800 Pro] (Secondary)
02:01.0 Ethernet controller: Intel Corporation 82547EI Gigabit Ethernet Controller
03:03.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
03:04.0 RAID bus controller: Promise Technology, Inc. PDC20378 (FastTrak 378/SATA 378) (rev 02)
03:0d.0 Ethernet controller: VIA Technologies, Inc. VT6105 [Rhine-III] (rev 86)
edit bis : après, je dis pas que virer le support de l'AHCI dans le noyau résolve le problème...
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apocryphe
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Joined: 03 Jul 2005
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Location: 78 - Pres de Saint Germain

PostPosted: Sun Feb 24, 2008 8:35 pm    Post subject: Reply with quote

de memoire c est un M, car everest sous windows me le dis je crois...

je ne vois pas pourquoi tu me parle de ca ??? en fait...


dans le bios j ai bien le support de l ahci...
_________________
Laptop Dell Inspiron 1520
Intel Core2Duo T7250 - GM965 - 4 Go 667MHz DDR2 - Nvidia 8400 GS (256MiB) - BCM4401- iwlwifi3945 - SD R5C822
~amd64 - GCC 4.4.1 - XFS ahci officiel 2.6.30.4 - Xorg 1.6.2 - kde 4.3 - Nvidia 190.18 - WSXGA+ (1680x1050)
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nonas
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Joined: 17 Apr 2005
Posts: 328

PostPosted: Sun Feb 24, 2008 9:03 pm    Post subject: Reply with quote

J'ai aussi l'AHCI dans le bios et pourtant mon chipset le supporte pas.
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