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 at 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 at 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 at 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 >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Thank you very much for the response. Thanks Jatin