select consuming too much cpu time when changing from kernel 2.6.29 to 2.6.34

Russell King - ARM Linux linux at arm.linux.org.uk
Thu Oct 20 07:37:01 EDT 2011


On Thu, Oct 20, 2011 at 01:32:45PM +0200, Werner Cornelius wrote:
> recently we changed from an older kernel 2.6.29 to a newer one 2.6.34 on an 
> ARM NXP LPC3250 platform.

strace is a wonderful program to monitor the kernel/user API activity -
it would be good if you could strace your test program and confirm
whether it's working as you expect.  (Note that it can measure the time
spent inside a syscall.)



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