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 Post subject: centos 5.5 server still seems slow
Unread postPosted: Tue Feb 22, 2011 6:18 pm 
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Fixed my sata drives.

The CPU load dropped heaps.

Its still a little high and I have got 6 camera's FTP in images every 1 minute.

I get several failed login attempts each hour.

Also it just seems slow..

httpd pages sometimes take a while to load.

Its x64 and a quad core 3.0 with 4GB ram. Swap is not used at all, it should scream. With fedora 11, it usually was around 0.5 CPU. Now it seems constantly around the 2.0 mark.

Any idea's what to check?


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 Post subject: Re: centos 5.5 server still seems slow
Unread postPosted: Tue Feb 22, 2011 7:00 pm 
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Well, 5.5 is an older code base for Apache (and older stuff), so you could try some of the -testing builds for newer apache builds. Also, are you running the latest non-Centos kernel? Lots of performance enhancements there too, plus new (faster) drivers.

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Atomicorp - Security For Everyone

Co-Author of Troubleshooting Linux Firewalls.


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 Post subject: Re: centos 5.5 server still seems slow
Unread postPosted: Tue Feb 22, 2011 7:28 pm 
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Right ahead there :)

I am running asl-2.0 testing and it's way better.

It's improved heaps and all the failed FTP emails stopped. Load is down to mid to high 1.x now.

I think the load now is mdmdm syncing the drives, they are 1TB

Transfer speeds seem to hit 25 MB/sec without tweaking the mdadm limits, but still it's about 500 minutes of work.

Like my other issue, top and ps aux are useless for detecting the load. Only uptime shows as it's all disc related.

That was one thing with centos all the packages are so old :(

Thank goodness you build updated front ends like apache, php and mysql!

Please keep it up.

Is there anyway I can help with the packages? I could look at the spec files for roadsend in testing and see why the x64 build is not making curl - It does for stable and it's the same bigloo so it's weird.

I also have built gpsd-2.9.5 on i386 and x64. Would you like the srpms so you could repo them? I also built aria2

Seems to be a lot of packages missing from centos :(


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