Extremely low disk performance on K7S5A Pro

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* Extremely low disk performance on K7S5A Pro
@ 2003-10-02 15:47 Andreas Schwarz
  2003-10-06 10:04 ` Lionel Bouton
  0 siblings, 1 reply; 5+ messages in thread
From: Andreas Schwarz @ 2003-10-02 15:47 UTC (permalink / raw)
  To: linux-kernel

Hi,

since I replaced my Abit KT7 with an Elitegroup K7S5A Pro (SIS735), I've
got extremly low disk performance with every tested kernel version
(2.4.20, 2.6.0-test6-mm2):

# hdparm -tT /dev/hda                                                           
/dev/hda:                                                                       
 Timing buffer-cache reads:   824 MB in  2.00 seconds = 411.65 MB/sec           
 Timing buffered disk reads:   10 MB in  3.28 seconds =   3.05 MB/sec
                                                          ^^^^

DMA, 32bit etc. is activated (hdparm -d1 -c3 -u1 /dev/hda):

# hdparm -v -i /dev/hda                                                         
/dev/hda:                                                                       
 multcount    = 16 (on)                                                         
 IO_support   =  3 (32-bit w/sync)                                              
 unmaskirq    =  1 (on)                                                         
 using_dma    =  1 (on)                                                         
 keepsettings =  0 (off)                                                        
 readonly     =  0 (off)                                                        
 readahead    = 256 (on)                                                        
 geometry     = 65535/16/63, sectors = 117231408, start = 0                     
                                                                                
 Model=ST360021A, FwRev=3.10, SerialNo=3HR0E280                                 
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }           
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16                 
 CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=117231408             
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}               
 PIO modes:  pio0 pio1 pio2 pio3 pio4                                           
 DMA modes:  mdma0 mdma1 mdma2                                                  
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5                               
 AdvancedPM=no WriteCache=enabled                                               
 Drive conforms to: device does not report version:

Any hints how this problem could be solved?

-- 
AVR-Tutorial, über 350 Links
Forum für AVRGCC und MSPGCC
-> http://www.mikrocontroller.net


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Extremely low disk performance on K7S5A Pro
  2003-10-02 15:47 Extremely low disk performance on K7S5A Pro Andreas Schwarz
@ 2003-10-06 10:04 ` Lionel Bouton
  2003-10-06 20:38   ` Andreas Schwarz
  2003-10-07 13:29   ` Andreas Schwarz
  0 siblings, 2 replies; 5+ messages in thread
From: Lionel Bouton @ 2003-10-06 10:04 UTC (permalink / raw)
  To: Andreas Schwarz; +Cc: linux-kernel

Andreas Schwarz said the following on 10/02/2003 05:47 PM:

>Hi,
>
>since I replaced my Abit KT7 with an Elitegroup K7S5A Pro (SIS735), I've
>got extremly low disk performance with every tested kernel version
>(2.4.20, 2.6.0-test6-mm2):
>
># hdparm -tT /dev/hda                                                           
>/dev/hda:                                                                       
> Timing buffer-cache reads:   824 MB in  2.00 seconds = 411.65 MB/sec           
> Timing buffered disk reads:   10 MB in  3.28 seconds =   3.05 MB/sec
>                                                          ^^^^
>
>DMA, 32bit etc. is activated (hdparm -d1 -c3 -u1 /dev/hda):
>
>  
>

3.05 MB is even less than what I'm used to see with most drives and *PIO 
4* !

Is there any ide message in /var/log/messages ?

I see you use hdparm to setup the drive/controller settings. I advise 
you to let the kernel autotune the transfer modes by itself.

Could you send us :
- the exact kernel version,
- your kernel compilation config file,
- any kernel parameters provided,
- the content of /var/log/dmesg,
- the output of `lspci -vvxxx`,
- the ouput of `cat /proc/ide/sis`

Best regards,

-- 
Lionel Bouton - inet6
---------------------------------------------------------------------
   o              Siege social: 51, rue de Verdun - 92158 Suresnes
  /      _ __ _   Acces Bureaux: 33 rue Benoit Malon - 92150 Suresnes
 / /\  /_  / /_   France
 \/  \/_  / /_/   Tel. +33 (0) 1 41 44 85 36
  Inetsys S.A.    Fax  +33 (0) 1 46 97 20 10
 



^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Extremely low disk performance on K7S5A Pro
  2003-10-06 10:04 ` Lionel Bouton
@ 2003-10-06 20:38   ` Andreas Schwarz
  2003-10-06 21:44     ` Daniel Egger
  2003-10-07 13:29   ` Andreas Schwarz
  1 sibling, 1 reply; 5+ messages in thread
From: Andreas Schwarz @ 2003-10-06 20:38 UTC (permalink / raw)
  To: linux-kernel

Lionel Bouton wrote:
> Andreas Schwarz said the following on 10/02/2003 05:47 PM:
>
>>Hi,
>>
>>since I replaced my Abit KT7 with an Elitegroup K7S5A Pro (SIS735), I've
>>got extremly low disk performance with every tested kernel version
>>(2.4.20, 2.6.0-test6-mm2):
>>
>># hdparm -tT /dev/hda                                                           
>>/dev/hda:                                                                       
>> Timing buffer-cache reads:   824 MB in  2.00 seconds = 411.65 MB/sec           
>> Timing buffered disk reads:   10 MB in  3.28 seconds =   3.05 MB/sec
>>                                                          ^^^^
>>
>>DMA, 32bit etc. is activated (hdparm -d1 -c3 -u1 /dev/hda):
>>
>>  
>>
>
> 3.05 MB is even less than what I'm used to see with most drives and *PIO 
> 4* !
>
> Is there any ide message in /var/log/messages ?

No, nothing at all.

> I see you use hdparm to setup the drive/controller settings. I advise 
> you to let the kernel autotune the transfer modes by itself.

That doesn't change anything.

> Could you send us :
> - the exact kernel version,

2.6.20-test6-mm2 (but 2.4.20 produces exactly the same result!)

> - your kernel compilation config file,

http://andreas-s.net/kernel/config.gz

> - any kernel parameters provided,

root=/dev/hda7 hdc=ide-scsi hdd=ide-scsi vga=792 noapic

> - the content of /var/log/dmesg,

http://andreas-s.net/kernel/dmesg.gz

> - the output of `lspci -vvxxx`,

http://andreas-s.net/kernel/lspci.gz

> - the ouput of `cat /proc/ide/sis`

http://andreas-s.net/kernel/sis.gz


-- 
AVR-Tutorial, über 350 Links
Forum für AVRGCC und MSPGCC
-> http://www.mikrocontroller.net


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Extremely low disk performance on K7S5A Pro
  2003-10-06 20:38   ` Andreas Schwarz
@ 2003-10-06 21:44     ` Daniel Egger
  0 siblings, 0 replies; 5+ messages in thread
From: Daniel Egger @ 2003-10-06 21:44 UTC (permalink / raw)
  To: Andreas Schwarz; +Cc: linux-kernel

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Am Mon, den 06.10.2003 schrieb Andreas Schwarz um 22:38:

> >># hdparm -tT /dev/hda                                                           
> >>/dev/hda:                                                                       
> >> Timing buffer-cache reads:   824 MB in  2.00 seconds = 411.65 MB/sec           
> >> Timing buffered disk reads:   10 MB in  3.28 seconds =   3.05 MB/sec

Eek, thanks to you I just figured out that one of my fileserver
harddrives has degraded its connection settings. After reactivating DMA
though I have the usual speeds also on a K7S5A:

egger@karin:~$ sudo hdparm -tT /dev/hdc
 
/dev/hdc:
 Timing buffer-cache reads:   800 MB in  2.00 seconds = 400.00 MB/sec
 Timing buffered disk reads:  120 MB in  3.01 seconds =  39.87 MB/sec

egger@karin:~$ sudo hdparm -tT /dev/hda
 
/dev/hda:
 Timing buffer-cache reads:   800 MB in  2.00 seconds = 400.00 MB/sec
 Timing buffered disk reads:   82 MB in  3.00 seconds =  27.33 MB/sec

-- 
Servus,
       Daniel

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^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Extremely low disk performance on K7S5A Pro
  2003-10-06 10:04 ` Lionel Bouton
  2003-10-06 20:38   ` Andreas Schwarz
@ 2003-10-07 13:29   ` Andreas Schwarz
  1 sibling, 0 replies; 5+ messages in thread
From: Andreas Schwarz @ 2003-10-07 13:29 UTC (permalink / raw)
  To: linux-kernel

Lionel Bouton wrote:
> Andreas Schwarz said the following on 10/02/2003 05:47 PM:
>
>>Hi,
>>
>>since I replaced my Abit KT7 with an Elitegroup K7S5A Pro (SIS735), I've
>>got extremly low disk performance with every tested kernel version
>>(2.4.20, 2.6.0-test6-mm2):
>>
>># hdparm -tT /dev/hda                                                           
>>/dev/hda:                                                                       
>> Timing buffer-cache reads:   824 MB in  2.00 seconds = 411.65 MB/sec           
>> Timing buffered disk reads:   10 MB in  3.28 seconds =   3.05 MB/sec
>>                                                          ^^^^
>>
>>DMA, 32bit etc. is activated (hdparm -d1 -c3 -u1 /dev/hda):
>>
>>  
>>
>
> 3.05 MB is even less than what I'm used to see with most drives and *PIO 
> 4* !

I found the source of the problem: I was using athcool to enable the "bus
disconnect when STPGNT detected" bit on startup. That didn't cause any
problems with my old board (Abit KT7), but the K7S5A seems to be
allergic to it. Sorry if I wasted your time!

Andreas


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2003-10-07 13:29 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-10-02 15:47 Extremely low disk performance on K7S5A Pro Andreas Schwarz
2003-10-06 10:04 ` Lionel Bouton
2003-10-06 20:38   ` Andreas Schwarz
2003-10-06 21:44     ` Daniel Egger
2003-10-07 13:29   ` Andreas Schwarz

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