[ltp] Hard disk tuning...

Tom Allison linux-thinkpad@www.bm-soft.com
Thu, 18 Oct 2001 06:09:43 -0400


ben knight wrote:

>>You might consider something like:
>>hdparm -tT /dev/hda && hdparm -tT /dev/hda && hdparm -tT /dev/hda
>>and see what the last two numbers are.  Mine are within +/- 1 at 118/18 
>>respectively.
>>
> 
> such as this?
> leeloo:/home/bkk# hdparm -tT /dev/hda && hdparm -tT /dev/hda && hdparm -tT /dev/hda
> 
> /dev/hda:
>  Timing buffer-cache reads:   128 MB in  0.92 seconds =139.13 MB/sec
>  Timing buffered disk reads:  64 MB in  5.31 seconds = 12.05 MB/sec
> 
> /dev/hda:
>  Timing buffer-cache reads:   128 MB in  0.94 seconds =136.17 MB/sec
>  Timing buffered disk reads:  64 MB in  4.32 seconds = 14.81 MB/sec
> 
> /dev/hda:
>  Timing buffer-cache reads:   128 MB in  1.11 seconds =115.32 MB/sec
>  Timing buffered disk reads:  64 MB in  4.07 seconds = 15.72 MB/sec
> 


Hmm... for all my hdparm runs on various machins I have always had 
numbers that are more like:
(disk read only) 8, 17, 18, 17
Always the first one stinks, but much lower than what you show here.


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