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  #1  
Old 10-31-2008, 02:11 PM
tom tom is offline
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Default iowait question

Any ideas how to reduce IOWAIT and increase disk speed on Linux server.

Server has 8 CPUs and with 32GB RAM.

Thanks in advance
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  #2  
Old 11-02-2008, 03:35 PM
Alexandre Alexandre is offline
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You can try the following tool:

IOzone Filesystem Benchmark
Iozone Filesystem Benchmark

Also, I think this articale will help you to improve the performance of your linux system

Linux.com :: A three-pronged attack on performance
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Old 11-03-2008, 01:01 AM
taki taki is offline
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I've used IOzone Filesystem Benchmark in the past and it always give good results for me. Give it a try and let us know if it helps you out.
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Old 11-04-2008, 03:52 PM
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whcdavid whcdavid is offline
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What kind of filesystem are you using? Ext2, ext3, vxfs?
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Old 11-04-2008, 04:07 PM
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whcdavid whcdavid is offline
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If you are using ext3 file sytem, you can add the following option in /etc/fstab file and that would save some time. EXT3 filesysystem keep last access time information for each file and it takes more time. If we disabled that option, then it would be much faster.


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  #6  
Old 11-15-2008, 04:44 PM
attagirl attagirl is offline
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Great links provided, I went and checked them out and you will definately get the help you are looking for. So if you have not visited them I would suggest that you do so if you are serious about your disk speed on Linux.
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  #7  
Old 11-24-2008, 02:29 AM
taki taki is offline
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Quote:
Originally Posted by whcdavid View Post
If you are using ext3 file sytem, you can add the following option in /etc/fstab file and that would save some time. EXT3 filesysystem keep last access time information for each file and it takes more time. If we disabled that option, then it would be much faster.


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Personally I would not do this as you are disabling a security feature that very well may be needed if some file comes up missing or has been modified for some nefarious reason. Rather than do this, I would upgrade my server.
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Old 11-29-2008, 11:22 PM
attagirl attagirl is offline
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How would you know that it would come up missing or become modified? I am curious to know why your security would not prevent this from happening.
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  #9  
Old 03-10-2016, 06:34 AM
farhan251 farhan251 is offline
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Quote:
Originally Posted by Alexandre View Post
You can try the following tool:

IOzone Filesystem Benchmark
Iozone Filesystem Benchmark

Also, I think this articale will help you to improve the performance of your linux system

Linux.com :: A three-pronged attack on performance
Great link it was very useful one thanks for sharing with us
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