On 7/29/2014 12:43 PM, IP wrote:
> W dniu 2014-07-29 08:16, Jatin Davey pisze:
>> Hi All
>>
>> I am using the following Linux version for my application:
>>
>> ****************************************
>> [root@localhost ~]# uname -a
>> Linux localhost.localdom 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT
>> 2009 x86_64 x86_64 x86_64 GNU/Linux
>> ****************************************
>>
>> ****************************************
>> [root@localhost ~]# cat /etc/*release
>> CentOS release 5.4 (Final)
>> ****************************************
>>
>> When my application is running on the server i can see only one core
>> being used heavily while the other cores are not being used much. My
>> application has a major workload is collecting data from the eth0
>> interface and then doing a lot of processing with the data in the
>> database. So i can say that the Disk I/O and Network I/O are the major
>> contributors towards the workload.
>>
>> from the /proc/interrupts file i can see the following:
>>
>> ****************************************************
>> [root@localhost ~]# cat /proc/interrupts
>> CPU0 CPU1 CPU2 CPU3
>> 0: 16084980 0 0 0 IO-APIC-edge timer
>> 1: 141 0 0 0 IO-APIC-edge i8042
>> 6: 5 0 0 0 IO-APIC-edge floppy
>> 7: 0 0 0 0 IO-APIC-edge parport0
>> 8: 0 0 0 0 IO-APIC-edge rtc
>> 9: 0 0 0 0 IO-APIC-level acpi
>> 12: 251 0 0 0 IO-APIC-edge i8042
>> 51: 2410224 0 0 0 IO-APIC-level ioc0
>> 59: 11358257 0 0 0 IO-APIC-level eth0
>> NMI: 0 0 0 0
>> LOC: 16086147 16090336 16090320 16089691
>> ERR: 0
>> MIS: 0
>> ****************************************************
>>
>> From the above output i can see that all the interrupts are hitting the
>> cpu0 and thats why it is used more than any other core in the system.
>>
>> Can someone please help me in distributing the interrupts across all the
>> cores so that all are used which will eventually result in a better
>> performance of my system.
>>
>> Appreciate your response in this regard.
> Hi.
>
> Just use service irq balance: irqbalance from base repo of centos 5
>
> IP
>
>> Thanks
>> Jatin
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Thank you very much for the response.
Thanks
Jatin
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