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Message-ID: <20170914211946.GB10371@kernel.org> Date: Thu, 14 Sep 2017 18:19:46 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: "Liang, Kan" <kan.liang@...el.com> Cc: "peterz@...radead.org" <peterz@...radead.org>, "mingo@...hat.com" <mingo@...hat.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "jolsa@...nel.org" <jolsa@...nel.org>, "namhyung@...nel.org" <namhyung@...nel.org>, "Hunter, Adrian" <adrian.hunter@...el.com>, "Odzioba, Lukasz" <lukasz.odzioba@...el.com>, "ak@...ux.intel.com" <ak@...ux.intel.com> Subject: Re: [PATCH RFC V2 00/10] perf top optimization Em Wed, Sep 13, 2017 at 12:38:19PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Wed, Sep 13, 2017 at 03:29:44PM +0000, Liang, Kan escreveu: > > > > > > Em Sun, Sep 10, 2017 at 07:23:13PM -0700, kan.liang@...el.com escreveu: > > > > > > So I got the first two patches already merged, and made some comments > > > about the other patches, please check those, > > > > > > > Thanks for the review Arnaldo. > > > > I will take a close look for the comments. > > For the next version, I only need to include patch 3-10, correct? > > Right, and go from my perf/core branch. The hashtable patch is still not > there as I am running tests before pushing out, but it should be there > later today. So, its at my repo, branch tmp.perf/threads_hashtable But 'perf trace' is broken, please take a look below: [root@...et ~]# gdb -c core GNU gdb (GDB) Fedora 8.0-20.fc26 <SNIP> Core was generated by `perf trace -e block:block_bio_queue'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x000000000051089a in ?? () (gdb) file perf Reading symbols from perf...done. (gdb) bt #0 0x000000000051089a in ____machine__findnew_thread (machine=0x3dfcab0, threads=0x3dfca78, pid=-1, tid=-1, create=false) at util/machine.c:429 #1 0x0000000000510b49 in machine__find_thread (machine=0x3dfcab0, pid=-1, tid=-1) at util/machine.c:498 #2 0x0000000000483dd0 in trace__set_filter_loop_pids (trace=0x7ffc0d23f880) at builtin-trace.c:2247 #3 0x000000000048438b in trace__run (trace=0x7ffc0d23f880, argc=0, argv=0x7ffc0d242a00) at builtin-trace.c:2385 #4 0x0000000000487219 in cmd_trace (argc=0, argv=0x7ffc0d242a00) at builtin-trace.c:3121 #5 0x00000000004c0b4a in run_builtin (p=0xa75d00 <commands+576>, argc=3, argv=0x7ffc0d242a00) at perf.c:296 #6 0x00000000004c0db7 in handle_internal_command (argc=3, argv=0x7ffc0d242a00) at perf.c:348 #7 0x00000000004c0f09 in run_argv (argcp=0x7ffc0d24285c, argv=0x7ffc0d242850) at perf.c:392 #8 0x00000000004c12d7 in main (argc=3, argv=0x7ffc0d242a00) at perf.c:536 (gdb)
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