| Posted by 31special, 06-21-2007, 10:14 AM | | Is this behavior normal when running a utility such as bonnie++ ????????
I'm running bonnie++ to check for the performance of my drive. When it gets to the part of Writing with putc()... the syslog starts to pop the message in the screen saying:
Message from syslogd@machine at Wed Jun 20 18:06:41 2007 ...
machine kernel: CPU0: Temperature/speed normal
I'm using the following OS:
OS CentOS 5
This is the uname information:
Linux machine.domain.com 2.6.18-8.el5 #1 SMP Thu Mar 15 19:46:53 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
This is the output of bonnie++
[root@machine ~]# bonnie++ -x 3 -u 0 -n1
Using uid:0, gid:0.
name,file_size,putc,putc_cpu,put_block,put_block_cpu,rewrite,rewrite_cpu,getc,getc_cpu,get_block,get_block_cpu,seeks,seeks_cpu,num_files,seq_create,se q_create_cpu,seq_stat,seq_stat_cpu,seq_del,seq_del_cpu,ran_create,ran_create_cpu,ran_stat,ran_stat_cpu,ran_del,ran_del_cpu
Writing with putc()...done
Writing intelligently...done
Rewriting...done
Reading with getc()...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
bigblue.diversityjobs.com,8G,63756,90,96753,25,43654,9,66384,94,104946,10,292.7,0,1,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++
Writing with putc()...
Message from syslogd@bigblue at Wed Jun 20 18:06:41 2007 ...
bigblue kernel: CPU0: Temperature/speed normal
done
Message from syslogd@machine at Wed Jun 20 18:06:43 2007 ...
bigblue kernel: CPU1: Temperature above threshold, cpu clock throttled
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| Posted by Russ Foster, 06-21-2007, 10:20 AM | | It sound like the CPU fan isn't keeping up. You should get the CPU fan checked out and make sure there is good airflow
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| Posted by 31special, 06-21-2007, 11:21 AM | | These are the settings that my BIOS is reporting:
CPU 81C / 178F
Board 32C / 90F
MCP 49C /120F
CPU Fan Speed 1721 RPM
Aux Fan Speed 5560 RPM
Chassis Fan Speed 0 RPM
Chassis Fan2 Speed 0 RPM
These are the treshholds:
CPU Fan SPeed Control
If temp > 70C Set Fan Speed 100%
If temp < 30C Set Fan Speed 1%
Chassis Fan Speed Control
If temp > 60C Set Fan Speed 100%
If temp < 30C Set Fan Speed 1%
These settings look right ????
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| Posted by Techbrace, 06-21-2007, 11:23 AM | | Post a ticket with your NOC/Colo. That should be what you should do now.
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| Posted by OoteR, 06-21-2007, 11:23 AM | | uhh, what cpu? and 81C seems pretty damn hot. 60's would be a better temp..
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| Posted by 31special, 06-21-2007, 01:16 PM | | Thanks for the inputs.
Actually, thats my own dedicated box. It seems that I will need to replace the Fan on that server. Any suggestions on which fan I should get ?
Thanks!
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| Posted by plumsauce, 06-21-2007, 01:31 PM | | Try setting the fan speeds to 100% at all times first.
Variable fan speeds are more suitable for desktop machines where quietness matters.
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| Posted by 31special, 06-21-2007, 05:34 PM | | I forgot to mentioned that I'm using 2 CPUs on that server. Is that temperture ok or its too hot?
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| Posted by gbjbaanb, 06-21-2007, 06:29 PM | | The temperature is too hot, or the CPU wouldn't throttle itself (be glad it does, older ones would just shut down)
I'd check all the fans, and the case fans. Make sure you have hot air coming out the back and they're all oriented correctly. The bios settings you showed the chassis fan not spinning at all which could be an issue - the hot air is being blown away from CPU0 onto CPU1 which is why one's hotter than the other - the chassis fan should be sucking all the hot air away out the back of the case.
Any fan will do, I've had a cheap 79 pence fan running fine, and an expensive antec fan gum up on me (though Antec sent me a new one straightaway!). Ball bearing ones are better, sleeve fans will not last as long. Hardware review places say Panaflo fans are the best. Perhaps buy several cheap ones and replace them yearly.
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