On Thu, Jan 28, 2016 at 12:40:47AM +0900, Namhyung Kim wrote:
> Hello,
>
> This patchset tries to implement percent limit to callchains which was
> requested by Andi Kleen. For some reason, limiting callchains by
> (overhead) percentage didn't work well. This patch fixes it and make
> --percent-limit also works for callchains as well as hist entries.
>
> * Changes from v1)
> - fix insertion path instead of changing all UI code
> - show percent value even on single path (if needed)
> - change default callchain percent limit
>
> This is available on 'perf/callchain-limit-v2' branch in my tree:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
>
> Any comments are welcome,
>
> Thanks,
> Namhyung
> *** BLURB HERE ***
>
> Namhyung Kim (10):
> perf hists: Fix min callchain hits calculation
> perf hists: Update hists' total period when adding entries
> perf report: Apply --percent-limit to callchains also
> perf report: Get rid of hist_entry__callchain_fprintf()
> perf tools: Pass parent_samples to __callchain__fprintf_graph()
> perf report: Fix percent display in callchains on --stdio
> perf hists browser: Fix dump to show correct callchain style
> perf hists browser: Pass parent_total to callchain print functions
> perf hists browser: Fix percent display in callchains
> perf tools: Change default calchain percent limit to 0.005%
also I see extra fo entries with callchain filtered out in stdio mode
jirka
---
8.41% yes libc-2.21.so [.] fputs_unlocked
|
---fputs_unlocked
|
|--5.67%--0x757074756f206472
|
--2.74%--0x3ba8e0
0x21e000
2.47% yes yes [.] fputs_unlocked@plt
|
---fputs_unlocked@plt
0x3ba8e0
0x21e000
0.12% yes [kernel.vmlinux] [k] vfs_write
0.09% yes libc-2.21.so [.] _IO_do_write@@GLIBC_2.2.5
0.08% yes [kernel.vmlinux] [k] entry_SYSCALL_64
0.07% yes [kernel.vmlinux] [k] fsnotify
0.06% yes [kernel.vmlinux] [k] sys_write
