linux-kernel - Re: 2.6.21.1 - 97% wait time on IDE operations

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Message-Id: <200705261746.01568@gj-laptop>
Date:	Sat, 26 May 2007 17:46:01 +0200
From:	Tommy Vercetti <vercetti@...w.org>
To:	"Ray Lee" <ray-lk@...rabbit.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.21.1 - 97% wait time on IDE operations

in terms of driver, what do you mean ?
this is my lspci:
00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller 
(rev 21)
00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev 
21)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) 
USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) 
USB UHCI Controller #2 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI 
Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge 
(rev 03)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 
03)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM 
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 
Modem Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation NV34M [GeForce FX 
Go5200] (rev a1)
02:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 
Controller (PHY/Link)
02:08.0 Ethernet controller: Intel Corporation 82801DB PRO/100 VE (MOB) 
Ethernet Controller (rev 83)
02:0a.0 Network controller: Intel Corporation PRO/Wireless LAN 2100 3B Mini 
PCI Adapter (rev 04)
02:0b.0 CardBus bridge: Toshiba America Info Systems ToPIC100 PCI to Cardbus 
Bridge with ZV Support (rev 33)
02:0d.0 System peripheral: Toshiba America Info Systems SD TypA Controller 
(rev 05)
03:00.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC 
(rev 01)

modules list, and config on request (don't want to pollute devs mailboxes).

/dev/hda:
 Timing cached reads:   732 MB in  2.00 seconds = 365.74 MB/sec
 Timing buffered disk reads:   76 MB in  3.00 seconds =  25.31 MB/sec
root@...pet:~# htparm -i -v /dev/hda
-su: htparm: command not found
root@...pet:~# hdparm -i -v /dev/hda

/dev/hda:
 multcount    = 16 (on)
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    = 256 (on)
 geometry     = 65535/16/63, sectors = 156301488, start = 0

 Model=TOSHIBA MK8025GAS, FwRev=KA023A, SerialNo=95NX6153S
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=48
 BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma3 udma4 *udma5
 AdvancedPM=yes: unknown setting WriteCache=enabled
 Drive conforms to: Unspecified:  ATA/ATAPI-1 ATA/ATAPI-2 ATA/ATAPI-3 
ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6

 * signifies the current active mode

-- 
Vercetti
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