Messages in this thread | | | Date | Thu, 31 Dec 2009 09:08:44 -0200 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 3/3] perf tools: adjust symbol address |
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Em Thu, Dec 31, 2009 at 06:49:01PM +0800, Xiao Guangrong escreveu: > > > Arnaldo Carvalho de Melo wrote: > > >> vmlinux* not know it's relocation or not, and we just handle the _specific_ > >> kernel at the time which match the current system. > > > > 'perf record' in one machine + 'perf report' in another should be > > possible. > > > > Yeah, but current code not support this since it not record kernel build-id in > perf.data while 'perf record' works, maybe you can fix it.
Huh? Checking...
[root@ana tmp]# perf record -a -f sleep 1s [ perf record: Woken up 3 times to write data ] [ perf record: Captured and wrote 0.330 MB perf.data (~14404 samples) ] [root@ana tmp]# perf buildid-list | grep kallsyms a3301c8755357466e39d71b46e8f69aecf83c0e8 [kernel.kallsyms] a3301c8755357466e39d71b46e8f69aecf83c0e8 [kernel.kallsyms] [root@ana tmp]#
In fact there is a bug, but the bug is either in 'perf buildid-list' showing it twice or it being recorded twice in 'perf record'.
- Arnaldo
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