smp_affinity on Redhat 5

From: Gururaj Ananthateerta <gururaj(at)broadcom.com>
Date: Wed Aug 08 2007 - 20:08:41 EDT

Hi,  

I am using an HP Dl380 G5 server with 2 Intel Xeon Quadcores,installed Redhat 5(2.6.18.el5 kernel). I noticied that in these servers, the smp_affinity is not a sinle mask value, insteads is a series of "comma" separated values. Can someone help me understand how to interpret these values and set the mask?  

[root@g1 linux-2.6.18]# cat /proc/irq/10/smp_affinity 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001

I also cheched on a 2 DUAL core Intel servers on HPDL380 G5 servers with redhat 4. I still see similar 8 comma separated values 00000000,00000000,00000000,00000000,00000000,00000000,00000000,000000ff    

Thanks in advance.
Gururaj  

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https://www.redhat.com/mailman/listinfo/redhat-devel-list Received on Wed Aug 8 20:09:13 2007