Messages in this thread | | | From | "Kyle" <> | Subject | Re: ICH5 with 2.6.1 very slow | Date | Sat, 7 Feb 2004 05:32:15 +0800 |
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Today I tried to boot with redhat kernel 2.4.20-24.9smp, much better result:
/dev/hda: Timing buffer-cache reads: 128 MB in 0.14 seconds =914.29 MB/sec Timing buffered disk reads: 64 MB in 1.67 seconds = 38.32 MB/sec
Really strange that /dev/hdc is even faster! /dev/hdc: Timing buffer-cache reads: 128 MB in 0.13 seconds =984.62 MB/sec Timing buffered disk reads: 64 MB in 1.17 seconds = 54.70 MB/sec
I ran hdparm 5 times at both harddisk and take the fastest result. /dev/hda and /dev/hdc are both WD 250GB / 8M, same model.
at kernel 2.6, I got same performance for /dev/hda and /dev/hdc, around ~28MB/sec. 50%-100% slower then kernel 2.4
/proc/interrupt:
CPU0 CPU1 0: 8014632 0 IO-APIC-edge timer 1: 2273 0 IO-APIC-edge i8042 2: 0 0 XT-PIC cascade 8: 1 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-level acpi 14: 167888 0 IO-APIC-edge ide0 15: 199399 0 IO-APIC-edge ide1 20: 2186070 0 IO-APIC-level eth1 NMI: 0 0 LOC: 8014888 8014887 ERR: 0 MIS: 0
I tried to update my mobo BIOS (Intel D865GLC), remove one of the NIC (I have two), disable serial, parallel, USB etc just leave IDE and built-in display, no help. I have NO IDE cdrom and floppy, only 2 harddisk, 1 CPU, 4 x 512M DDR and a mobo at my machine.
CONFIG_IDE=y CONFIG_BLK_DEV_IDE=y CONFIG_BLK_DEV_IDEDISK=y CONFIG_IDEDISK_MULTI_MODE=y CONFIG_BLK_DEV_IDECD=m CONFIG_BLK_DEV_IDESCSI=m CONFIG_BLK_DEV_IDEPNP=y CONFIG_BLK_DEV_IDEPCI=y CONFIG_IDEPCI_SHARE_IRQ=y CONFIG_BLK_DEV_GENERIC=y CONFIG_BLK_DEV_IDEDMA_PCI=y CONFIG_IDEDMA_PCI_AUTO=y CONFIG_BLK_DEV_ADMA=y CONFIG_BLK_DEV_PIIX=y CONFIG_BLK_DEV_IDEDMA=y CONFIG_IDEDMA_AUTO=y
Kyle
----- Original Message ----- From: "Bas Mevissen" <ml@basmevissen.nl> To: "Kyle" <kyle@southa.com> Cc: <linux-kernel@vger.kernel.org> Sent: Friday, February 06, 2004 6:10 PM Subject: Re: ICH5 with 2.6.1 very slow
> Kyle wrote: > > > hdparm /dev/hda > > /dev/hda: > > multcount = 16 (on) > > IO_support = 1 (32-bit) > > unmaskirq = 1 (on) > > using_dma = 1 (on) > > keepsettings = 0 (off) > > readonly = 0 (off) > > readahead = 256 (on) > > geometry = 30401/255/63, sectors = 488397168, start = 0 > > > > tried with hdparm -a8192 /dev/hda, not much different > > /dev/hdc same as /dev/hda > > > > Looks fine. That's strange. Maybe reboot the system and check > /proc/interrupts to see if none of them is excessive. > > What's your .config? Try with as less as possible IDE stuff enabled. > > Bas. > > >
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