linux-kernel - Re: perf: header: Regression

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Message-ID: <87sj96hrg4.fsf@sejong.aot.lge.com>
Date:	Tue, 23 Oct 2012 11:07:07 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Andrew Jones <drjones@...hat.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: perf: header: Regression

Hi Andrew,

On Mon, 22 Oct 2012 15:11:42 +0200, Andrew Jones wrote:
> The patch series that contains 7e94cfcc9d20 regresses the
> header output. Below is a diff of info from before and
> after the series
>
> 58,64c58,59
> < # node1 meminfo  : total = 16777216 kB, free = 15712440 kB
> < # node1 cpu list : 2,6,10,14,18,22,26,30
> < # node2 meminfo  : total = 16777216 kB, free = 16299132 kB
> < # node2 cpu list : 1,5,9,13,17,21,25,29
> < # node3 meminfo  : total = 16777216 kB, free = 16217192 kB
> < # node3 cpu list : 3,7,11,15,19,23,27,31
> < # pmu mappings: cpu = 4, software = 1, tracepoint = 2, uncore_bbox_0 =
> 15, uncore_bbox_1 = 16, uncore_cbox_0 = 7, uncore_cbox_1 = 8,
> uncore_cbox_2 = 9, uncore_cbox_3 = 10, uncore_cbox_4 = 11, uncore_cbox_5 =
> 12, uncore_cbox_6 = 13, uncore_cbox_7 = 14, uncore_mbox_0 = 19,
> uncore_mbox_1 = 20, uncore_rbox_0 = 21, uncore_rbox_1 = 22, uncore_sbox_0
> = 17, uncore_sbox_1 = 18, breakpoint = 5, uncore_ubox = 6, uncore_wbox =
> 23
> ---
>> # numa topology : not available
>> # pmu mappings: cpu = 4, software = 1, tracepoint = 2, uncore_bbox_0 =
> 15, uncore_bbox_1 = 16, uncore_cbox_0 = 7, uncore_cbox_1 = 8,
> uncore_cbox_2 = 9, uncore_cbox_3 = 10, uncore_cbox_4 = 11, uncore_cbox_5 =
> 12, uncore_cbox_6 = 13, uncore_cbox_7 = 14, uncore_mbox_0 = 19# pmu
> mappings: unable to read
>
> As can be seen in the diff, before the series we had complete
> numa info and pmu mappings info. After we get 
>
> "# numa topology : not available" and "# pmu
> mappings: unable to read"

Hmm.. I couldn't reproduce on my system:

# node0 meminfo  : total = 33505624 kB, free = 25213528 kB
# node0 cpu list : 0-11
# pmu mappings: cpu = 4, software = 1, uncore_pcu = 13, tracepoint = 2,
uncore_imc_0 = 15, uncore_imc_1 = 16, uncore_imc_2 = 17, uncore_imc_3
= 18, uncore_qpi_0 = 19, u = 20, uncore_cbox_0 = 7, uncore_cbox_1 = 8,
uncore_cbox_2 = 9, uncore_cbox_3 = 10, uncore_cbox_4 = 11, un = 12,
uncore_ha = 14, uncore_r2pcie = 21, uncore_r3qpi_0 = 22,
uncore_r3qpi_1 = 23, breakpoint = 5, uncore_ubox = 6 

I don't have a NUMA machine.  Could you send your perf.data file or a
link via private mail?

Thanks,
Namhyung
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