Re: [ale] Disk performance

[Michael Smith]

I didn't know the -t option existed..
 
What's really interesting is... I have write verify turned on on my
hard drive and I am getting:
 
on boot partition
Timing buffered disk reads:  64 MB in  2.24 seconds = 28.57 MB/sec
 
on Raid 0 partition
Timing buffered disk reads:  64 MB in  1.04 seconds = 61.54 MB/sec

Imagine what I could get with it turned off....

> On Tuesday 22 January 2002 11:07 am, Ken Nagorski wrote:
>> hey folks - Look at this. I think everyone should read the article...
>> Note the transfer rate before and after hdparm
>>
>> Thanks for the tip!
>> Ken
>> -------------------snip---------------------------------
>> root at workstation:$ hdparm -t /dev/hda
>>
>> /dev/hda:
>>  Timing buffered disk reads:  64 MB in 19.87 seconds =  3.22 MB/sec
>> root at workstation:$ hdparm -d 1 /dev/hda
>>
>> /dev/hda:
>>  setting using_dma to 1 (on)
>>  using_dma    =  1 (on)
>> root at workstation:$ hdparm -c 1 /dev/hda
>>
>> /dev/hda:
>>  setting 32-bit I/O support flag to 1
>>  I/O support  =  1 (32-bit)
>> root at workstation:$ hdparm -t /dev/hda
>>
>> /dev/hda:
>>  Timing buffered disk reads:  64 MB in  3.71 seconds = 17.25 MB/sec
>> root at workstation:$ hdparm -k 1 /dev/hda
>>
>> /dev/hda:
>>  setting keep_settings to 1 (on)
>>  keepsettings =  1 (on)
>> --------end------------snip---------------------------------
>>
>> > Ken have look at playing around with the hdparm command. Here is an
>> > article that shows some common setting to increase your HD
>> > performance.
>> >
>> > 
http://www.linux.com/enhance/tuneup/database.phtml/Filesystem/000075.html
>> >
>> > Ken Nagorski wrote:
>> >> Hi there,
>> >>
>> >> I have a newer box running Slackware 8. It has a 40gig HD in it and
>> >> an Intel D850GB. It seems like the disk access is horrible...
>> >> Anyone know anything about this. I am sure that something can be
>> >> done to improve the disk access? I have never really had issues
>> >> like this before so I am not even sure where to start, so I am
>> >> taking suggestions...
>> >>
>> >> Thanks
>> >> Ken
>> >>
>> >> ----------------------------------------------
>> >> But I don't want to go among mad people,
>> >> Alice remarked.
>> >> Oh, you can't help that, said the Cat:
>> >> we're all mad here. I'm mad. You're mad.
>> >> How do you know I'm mad? said Alice.
>> >> You must be, said the Cat,
>> >> or you wouldn't have come here.
>> >>
>> >> ---
>> >> This message has been sent through the ALE general discussion list.
>> >> See http://www.ale.org/mailing-lists.shtml for more info. Problems
>> >> should be sent to listmaster at ale dot org.
>> >
>> > --
>> > Denny Chambers
>> > Quantum Corporation, Inc.
>> > Network Attached Storage Division
>> > Java Linux Engineer
>> > Phone: 251-478-5730
>> > Cell: 251-605-3446
>> > IM: bugfixer at jabber.org
>>
>> ----------------------------------------------
>> But I don't want to go among mad people,
>> Alice remarked.
>> Oh, you can't help that, said the Cat:
>> we're all mad here. I'm mad. You're mad.
>> How do you know I'm mad? said Alice.
>> You must be, said the Cat,
>> or you wouldn't have come here.
>>
>>
>> ---
>> This message has been sent through the ALE general discussion list.
>> See http://www.ale.org/mailing-lists.shtml for more info. Problems
>> should be sent to listmaster at ale dot org.


-- 
Michael Smith
msmith at mikeandmel.com



---
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