Re: kernbench on 512p

William Lee Irwin III
2004-08-19T16:22:35Z

On Thu, Aug 19, 2004 at 12:16:33PM -0400, Jesse Barnes wrote:
> Here's the kernel profile. It would be nice if the patch to show which lock
> is contended got included. I think it was discussed awhile back, but I don't
> have one against the newly merged profiling code.
> [root@ascender root]# readprofile -m System.map | sort -nr | head -30
> 208218076 total 30.1677
> 90036167 ia64_pal_call_static 468938.3698
> 88140492 default_idle 229532.5312
> 10312592 ia64_save_scratch_fpregs 161134.2500
> 10306777 ia64_load_scratch_fpregs 161043.3906
> 8723555 ia64_spinlock_contention 90870.3646
> 121385 rcu_check_quiescent_state 316.1068
> 40464 file_move 180.6429
> 32374 file_kill 144.5268
> 25316 atomic_dec_and_lock 98.8906
> 24814 clear_page 155.0875
> 17709 file_ra_state_init 110.6813
> 17603 clear_page_tables 13.4169

file_move()? file_kill()? I smell files_lock.

-- wli