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From: Jiri Olsa <jolsa@redhat.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: acme@kernel.org, jolsa@kernel.org, linux-kernel@vger.kernel.org,
	Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH v2 10/10] tools, perf, script: Implement --graph-function
Date: Mon, 3 Sep 2018 09:51:28 +0200	[thread overview]
Message-ID: <20180903075128.GE24575@krava> (raw)
In-Reply-To: <20180831220206.28351-11-andi@firstfloor.org>

On Fri, Aug 31, 2018 at 03:02:06PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
> 
> Add a ftrace style --graph-function argument to perf script that allows
> to print itrace function calls only below a given function. This
> makes it easier to find the code of interest in a large trace.
> 
> % perf record -e intel_pt//k -a sleep 1
> % perf script --graph-function group_sched_in --call-trace
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])          group_sched_in
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])              __x86_indirect_thunk_rax
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])              event_sched_in.isra.107
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                  perf_event_set_state.part.71
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                      perf_event_update_time
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                  perf_pmu_disable
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                  perf_log_itrace_start
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                  __x86_indirect_thunk_rax
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                      perf_event_update_userpage
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                          calc_timer_values
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                              sched_clock_cpu
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                          __x86_indirect_thunk_rax
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                          arch_perf_update_userpage
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                              __fentry__
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                              using_native_sched_clock
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                              sched_clock_stable
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])                  perf_pmu_enable
>             perf   900 [000] 194167.205652203: ([kernel.kallsyms])              __x86_indirect_thunk_rax
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])          group_sched_in
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])              __x86_indirect_thunk_rax
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])              event_sched_in.isra.107
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                  perf_event_set_state.part.71
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                      perf_event_update_time
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                  perf_pmu_disable
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                  perf_log_itrace_start
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                  __x86_indirect_thunk_rax
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                      perf_event_update_userpage
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                          calc_timer_values
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                              sched_clock_cpu
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                          __x86_indirect_thunk_rax
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                          arch_perf_update_userpage
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                              __fentry__
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                              using_native_sched_clock
>          swapper     0 [001] 194167.205660693: ([kernel.kallsyms])                              sched_clock_stable

nice, but I'm also getting a lot of these lines:

 instruction trace error type 1 cpu 0 pid 0 tid 0 ip 0xffffffffb3a017a0 code 6: Trace doesn't match instruction
 instruction trace error type 1 cpu 0 pid 0 tid 0 ip 0xffffffffb3a017a0 code 6: Trace doesn't match instruction
 instruction trace error type 1 cpu 0 pid 0 tid 0 ip 0xffffffffb3a017a0 code 6: Trace doesn't match instruction

any idea where are those comming from?

thanks,
jirka

  reply	other threads:[~2018-09-03  7:51 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-31 22:01 Make perf script easier to use for itrace Andi Kleen
2018-08-31 22:01 ` [PATCH v2 01/10] perf tools: Report itrace options in help Andi Kleen
2018-08-31 22:01 ` [PATCH v2 02/10] tools, pager: Support overwriting the pager Andi Kleen
2018-08-31 22:01 ` [PATCH v2 03/10] tools, perf, script: Add --insn-trace for instruction decoding Andi Kleen
2018-08-31 22:02 ` [PATCH v2 04/10] perf, tools, script: Allow sym and dso without ip, addr Andi Kleen
2018-09-03  7:15   ` Jiri Olsa
2018-09-03 16:12     ` Andi Kleen
2018-08-31 22:02 ` [PATCH v2 05/10] tools, perf, script: Set user_set/wildcard_set for +- fields in -F Andi Kleen
2018-08-31 22:02 ` [PATCH v2 06/10] perf, tools, script: Implement - for typed fields Andi Kleen
2018-09-03  7:17   ` Jiri Olsa
2018-08-31 22:02 ` [PATCH v2 07/10] perf, tools, script: Print DSO for callindent Andi Kleen
2018-08-31 22:02 ` [PATCH v2 08/10] perf, tools, script: Make itrace script default to all calls Andi Kleen
2018-08-31 22:02 ` [PATCH v2 09/10] tools, perf, script: Add --call-trace and --call-ret-trace Andi Kleen
2018-08-31 22:02 ` [PATCH v2 10/10] tools, perf, script: Implement --graph-function Andi Kleen
2018-09-03  7:51   ` Jiri Olsa [this message]
2018-09-03 15:44     ` Andi Kleen
2018-08-31 22:54 ` Make perf script easier to use for itrace Kim Phillips
2018-09-03  7:31   ` Jiri Olsa
2018-09-03 15:50   ` Andi Kleen
2018-09-03  7:52 ` Jiri Olsa

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