From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH v6 1/5] tools, perf, script: Add --insn-trace for instruction decoding
Date: Mon, 8 Oct 2018 14:50:14 -0300 [thread overview]
Message-ID: <20181008175014.GS3541@kernel.org> (raw)
In-Reply-To: <20180920180540.14039-2-andi@firstfloor.org>
Em Thu, Sep 20, 2018 at 11:05:36AM -0700, Andi Kleen escreveu:
> From: Andi Kleen <ak@linux.intel.com>
>
> Add a --insn-trace short hand option for decoding and disassembling
> instruction streams for intel_pt. This automatically pipes the
> output into the xed disassembler to generate disassembled instructions.
> This just makes this use model much nicer to use
>
> Before
>
> % perf record -e intel_pt// ...
> % perf script --itrace=i0ns --ns -F +insn,-event,-period | xed -F insn: -A -64
> swapper 0 [000] 117276.429606186: ffffffff81010486 pt_config ([kernel.kallsyms]) nopl %eax, (%rax,%rax,1)
> swapper 0 [000] 117276.429606186: ffffffff8101048b pt_config ([kernel.kallsyms]) add $0x10, %rsp
> swapper 0 [000] 117276.429606186: ffffffff8101048f pt_config ([kernel.kallsyms]) popq %rbx
> swapper 0 [000] 117276.429606186: ffffffff81010490 pt_config ([kernel.kallsyms]) popq %rbp
> swapper 0 [000] 117276.429606186: ffffffff81010491 pt_config ([kernel.kallsyms]) popq %r12
> swapper 0 [000] 117276.429606186: ffffffff81010493 pt_config ([kernel.kallsyms]) popq %r13
> swapper 0 [000] 117276.429606186: ffffffff81010495 pt_config ([kernel.kallsyms]) popq %r14
> swapper 0 [000] 117276.429606186: ffffffff81010497 pt_config ([kernel.kallsyms]) popq %r15
> swapper 0 [000] 117276.429606186: ffffffff81010499 pt_config ([kernel.kallsyms]) retq
> swapper 0 [000] 117276.429606186: ffffffff8101063e pt_event_add ([kernel.kallsyms]) cmpl $0x1, 0x1b0(%rbx)
> swapper 0 [000] 117276.429606186: ffffffff81010645 pt_event_add ([kernel.kallsyms]) mov $0xffffffea, %eax
> swapper 0 [000] 117276.429606186: ffffffff8101064a pt_event_add ([kernel.kallsyms]) mov $0x0, %edx
> swapper 0 [000] 117276.429606186: ffffffff8101064f pt_event_add ([kernel.kallsyms]) popq %rbx
> swapper 0 [000] 117276.429606186: ffffffff81010650 pt_event_add ([kernel.kallsyms]) cmovnz %edx, %eax
> swapper 0 [000] 117276.429606186: ffffffff81010653 pt_event_add ([kernel.kallsyms]) jmp 0xffffffff81010635
> swapper 0 [000] 117276.429606186: ffffffff81010635 pt_event_add ([kernel.kallsyms]) retq
> swapper 0 [000] 117276.429606186: ffffffff8115e687 event_sched_in.isra.107 ([kernel.kallsyms]) test %eax, %eax
>
> Now
>
> % perf record -e intel_pt// ...
> % perf script --insn-trace --xed
> ... same output ...
>
> XED needs to be installed with:
>
> > git clone https://github.com/intelxed/mbuild.git mbuild
> > git clone https://github.com/intelxed/xed
> > cd xed
> > mkdir obj
> > cd obj
> > ../mfile.py
> > sudo ../mfile.py --prefix=/usr/local install
>
> Signed-off-by: Andi Kleen <ak@linux.intel.com>
Fixed up whitespace damage in the Documentation for building xed,
applied.
- Arnaldo
next prev parent reply other threads:[~2018-10-08 17:50 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 18:05 Make perf script easier to use for itrace Andi Kleen
2018-09-20 18:05 ` [PATCH v6 1/5] tools, perf, script: Add --insn-trace for instruction decoding Andi Kleen
2018-10-08 17:50 ` Arnaldo Carvalho de Melo [this message]
2018-10-08 18:03 ` Arnaldo Carvalho de Melo
2018-10-08 18:41 ` Andi Kleen
2018-10-08 19:40 ` Arnaldo Carvalho de Melo
2018-10-26 7:45 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
2018-09-20 18:05 ` [PATCH v6 2/5] perf, tools, script: Make itrace script default to all calls Andi Kleen
2018-10-26 7:46 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
2018-09-20 18:05 ` [PATCH v6 3/5] tools, perf, script: Add --call-trace and --call-ret-trace Andi Kleen
2018-09-28 10:23 ` leo.yan
2018-09-28 17:19 ` Andi Kleen
2018-09-29 7:39 ` leo.yan
2018-10-02 14:24 ` Arnaldo Carvalho de Melo
2018-10-02 23:09 ` leo.yan
2018-10-26 7:46 ` [tip:perf/urgent] tools " tip-bot for Andi Kleen
2018-09-20 18:05 ` [PATCH v6 4/5] tools, perf, script: Implement --graph-function Andi Kleen
2018-10-26 7:47 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
2018-09-20 18:05 ` [PATCH v6 5/5] perf, tools, script: Support total cycles count Andi Kleen
2018-09-24 17:07 ` Andi Kleen
2018-10-26 7:47 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
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