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SubjectRe: [PATCHSET 00/12] perf tools: Apply percent-limit to callchains
On Wed, Jan 27, 2016 at 12:54:17AM +0900, Namhyung Kim wrote:

SNIP

> > > > > > 0.04% 0.04% perf [kernel.vmlinux] [k] x86_pmu_enable
> > > > > > 0.04% 0.04% perf [kernel.vmlinux] [k] native_apic_mem_write
> > > > > >
> > > > >
> > > > > What's the problem? Now by default callchains under 0.5% (absolute)
> > > > > will not be shown. I think this is intended output, and we need to
> > > > > consider changing the default percent limit.
> > > >
> > > > hm, just the TUI shows +- for entries with no callchain
> > >
> > > Humm, this is an old bug, never got around to try to fix it, or is this
> > > something you were not experiencing before this patchkit from Namhyung?
> > >
> >
> > well, there were callchains present before this patchset ;-)
>
> That is because we apply percent limit to callchains now, and the
> default is 0.5%. Before this patchset percent limit seems not applied
> so you saw the callchains under the limit.

I'm just saying that in TUI I see entries without callcains (which are filtered out)
but those entries are still marked with +- ... I dont know if that's some old issue

thanks,
jirka


---
+ 0.08% 0.00% perf [kernel.vmlinux] [k] perf_pmu_enable.part.87 ▒
+ 0.08% 0.00% perf [kernel.vmlinux] [k] perf_event_context_sched_in ▒
+ 0.08% 0.00% perf [kernel.vmlinux] [k] perf_event_exec ▒
+ 0.08% 0.00% perf [kernel.vmlinux] [k] setup_new_exec ▒
+ 0.08% 0.00% perf [kernel.vmlinux] [k] load_elf_binary ▒
+ 0.08% 0.00% perf [kernel.vmlinux] [k] search_binary_handler ▒
+ 0.08% 0.00% perf [kernel.vmlinux] [k] do_execveat_common.isra.33 ▒
+ 0.08% 0.00% perf [kernel.vmlinux] [k] sys_execve ▒
- 0.08% 0.00% perf [kernel.vmlinux] [k] return_from_execve ▒
- 0.08% 0.00% perf [unknown] [k] 0x00007f2175b35e07 ▒
- 0.04% 0.00% perf [kernel.vmlinux] [k] perf_event_nmi_handler ▒
- 0.04% 0.00% perf [kernel.vmlinux] [k] nmi_handle ▒
- 0.04% 0.00% perf [kernel.vmlinux] [k] default_do_nmi ▒
- 0.04% 0.00% perf [kernel.vmlinux] [k] do_nmi ▒
- 0.04% 0.00% perf [kernel.vmlinux] [k] end_repeat_nmi ▒
- 0.04% 0.04% perf [kernel.vmlinux] [k] x86_pmu_enable ▒
- 0.04% 0.04% perf [kernel.vmlinux] [k] native_apic_mem_write ▒

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