Messages in this thread | | | Date | Tue, 2 May 2017 08:41:47 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH] perf, tools, script: Allow adding and removing fields |
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On Mon, May 01, 2017 at 12:47:46PM -0700, Andi Kleen wrote: > From: Andi Kleen <ak@linux.intel.com> > > With perf script it is common that we just want to add or remove a field. > Currently this requires figuring out the long list of default fields and > specifying them first, and then adding/removing the new field. > > This patch adds a new + - syntax to merely add or remove fields, > that allows more succint and clearer command lines > > For example to remove the comm field from PMU samples: > > Previously > > perf script -F pid,cpu,time,event,sym,ip,dso,period > 0 [000] 504345.383126: 1 cycles: ffffffff90060c66 native_write_msr ([kernel.kallsyms]) > > with the new syntax > > perf script -F -comm > 0 [000] 504345.383126: 1 cycles: ffffffff90060c66 native_write_msr ([kernel.kallsyms])
I haven't checked deeply yet, but I'm getting different pids with the new syntax, perhaps some mixing with tids column?
0 [002] 42615.004240: 2172 cycles: ffffffff86060c66 native_write_msr ([kernel.kallsyms]) 0 [002] 42615.004242: 19857 cycles: ffffffff860abee0 irq_exit ([kernel.kallsyms]) 0 [002] 42615.004250: 412618 cycles: ffffffff860d1429 ttwu_do_wakeup ([kernel.kallsyms]) - 1798 [001] 42615.008219: 46557 cycles: ffffffff860dc718 update_blocked_averages ([kernel.kallsyms]) - 1798 [001] 42615.008239: 46557 cycles: 7f313dff0684 [unknown] (/usr/lib64/firefox/libxul.so) - 1798 [001] 42615.008258: 112387 cycles: 7f313e32c71a [unknown] (/usr/lib64/firefox/libxul.so) + 1861 [001] 42615.008219: 46557 cycles: ffffffff860dc718 update_blocked_averages ([kernel.kallsyms]) + 1861 [001] 42615.008239: 46557 cycles: 7f313dff0684 [unknown] (/usr/lib64/firefox/libxul.so) + 1861 [001] 42615.008258: 112387 cycles: 7f313e32c71a [unknown] (/usr/lib64/firefox/libxul.so) 1687 [002] 42615.008268: 1711528 cycles: ffffffffc01e74c7 i915_gem_set_domain_ioctl ([i915]) - 1798 [001] 42615.008303: 281652 cycles: ffffffff860dc169 account_entity_dequeue ([kernel.kallsyms]) + 1861 [001] 42615.008303: 281652 cycles: ffffffff860dc169 account_entity_dequeue ([kernel.kallsyms]) 1798 [001] 42615.008440: 442473 cycles: 7f3147c6935b g_slice_free1 (/usr/lib64/libglib-2.0.so.0.5000.3) - 1935 [001] 42615.009462: 487718 cycles: ffffffff860f25bc cpuacct_charge ([kernel.kallsyms]) - 1935 [002] 42615.009955: 1711528 cycles: 7fa2a2ac748f [unknown] (/usr/lib64/firefox/libmozavcodec.so) - 1935 [001] 42615.009989: 441676 cycles: 559627e901da [unknown] (/usr/lib64/firefox/firefox) - 1935 [000] 42615.010233: 79099 cycles: 7fa2c2a11fa9 [unknown] (/usr/lib64/firefox/libxul.so) +24128 [001] 42615.009462: 487718 cycles: ffffffff860f25bc cpuacct_charge ([kernel.kallsyms]) +24182 [002] 42615.009955: 1711528 cycles: 7fa2a2ac748f [unknown] (/usr/lib64/firefox/libmozavcodec.so) +24181 [001] 42615.009989: 441676 cycles: 559627e901da [unknown] (/usr/lib64/firefox/firefox) +24112 [000] 42615.010233: 79099 cycles: 7fa2c2a11fa9 [unknown] (/usr/lib64/firefox/libxul.so)
thanks, jirka
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