Messages in this thread | | | Subject | Re: [patch] voluntary-preempt-2.6.9-rc1-bk12-R6 | From | Lee Revell <> | Date | Wed, 08 Sep 2004 02:56:03 -0400 |
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On Mon, 2004-09-06 at 07:06, Ingo Molnar wrote: > i've released the -R6 patch: > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc1-bk12-R6
I get these latencies when I cause the machine to swap by compiling a kernel with make -j32. They get bigger as the machine gets further into swap.
Every 2.0s: head -60 /proc/latency_trace Wed Sep 8 02:51:40 2004
preemption latency trace v1.0.6 on 2.6.9-rc1-bk12-VP-R6 -------------------------------------------------- latency: 605 us, entries: 5 (5) [VP:1 KP:1 SP:1 HP:1 #CPUS:1] ----------------- | task: kswapd0/35, uid:0 nice:0 policy:0 rt_prio:0 ----------------- => started at: get_swap_page+0x23/0x490 => ended at: get_swap_page+0x13f/0x490 =======> 00000001 0.000ms (+0.606ms): get_swap_page (add_to_swap) 00000001 0.606ms (+0.000ms): sub_preempt_count (get_swap_page) 00000001 0.606ms (+0.000ms): update_max_trace (check_preempt_timing) 00000001 0.606ms (+0.000ms): _mmx_memcpy (update_max_trace) 00000001 0.607ms (+0.000ms): kernel_fpu_begin (_mmx_memcpy)
Lee
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