Perfomance problem

Discuss usability issues, general maintenance, and general support issues for a grsecurity-enabled system.

Perfomance problem

Postby korio » Wed Mar 24, 2004 5:14 am

Hello to all
2 servers here
Server1 - P4 @1.5Ghz 1GB RAM kernel 2.4.25 patched with grsecurity-1.9.14-2.4.25. There is no problems with transfer rates - Up to 15MBytes/ec. Load average is normal 0,3-0,5.

Server2 - P3(Coppermine) @333Mhz 768MB RAM kernel 2.4.25 patched with grsecurity-1.9.14-2.4.25. Here i am experiencing abnormal high load averages and slow transfer rates(0.3-0.9MB/sec - with clean 2.4.25 kernel normally i can down|upload with 5-6MBytes/sec). CPU usage is 100% almost all the time and transfers are lagging at random periods.

Both servers are running samba 3.0.2a-1 on debian unstable

Any idea?

WWell by
korio
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Postby Sleight of Mind » Wed Mar 24, 2004 6:41 am

did you try running a vanilla 2.4.25 on this machine? Did the load averages drop to normal levels with vanilla?

-Rik
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Postby korio » Wed Mar 24, 2004 8:39 am

Yep with vanilla everything is ok...
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Postby spender » Wed Mar 24, 2004 8:45 am

how many processes do you have running on the system?

can you try the 2.0 patch and see if that's any different?
there's a specific algorithm change in 2.0 that i think may solve this issue

-Brad
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Postby korio » Wed Mar 24, 2004 12:10 pm

About 1k proccesses. I`ll try 2.0 later tonight
10x
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Postby abefroman » Sun Mar 28, 2004 5:32 pm

What is vanilla?
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Postby spender » Sun Mar 28, 2004 6:41 pm

vanilla = a plain kernel downloaded from kernel.org; nothing else patched in to it.

-Brad
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