On Fri, Nov 01, 2013 at 03:48:37PM +0900, Namhyung Kim wrote: > Hi Ingo, > > On Thu, 31 Oct 2013 09:09:32 +0100, Ingo Molnar wrote: > > * Namhyung Kim <namhy...@kernel.org> wrote: > > > >> When the -g cumulative option is given, it'll be shown like this: > >> > >> $ perf report -g cumulative --stdio > >> > >> # Overhead Overhead (Acc) Command Shared Object > >> Symbol > >> # ........ .............. ....... ................. > >> ....................... > >> # > >> 0.00% 88.29% abc libc-2.17.so [.] > >> __libc_start_main > >> 0.00% 88.29% abc abc [.] main > >> > >> 0.00% 88.29% abc abc [.] c > >> > >> 0.00% 88.29% abc abc [.] b > >> > >> 88.29% 88.29% abc abc [.] a > >> > >> 0.00% 11.61% abc ld-2.17.so [k] > >> _dl_sysdep_start > >> 0.00% 9.43% abc ld-2.17.so [.] dl_main > >> > >> 9.43% 9.43% abc ld-2.17.so [.] > >> _dl_relocate_object > >> 2.27% 2.27% abc [kernel.kallsyms] [k] page_fault > >> > >> 0.00% 2.18% abc ld-2.17.so [k] > >> _dl_start_user > >> 0.00% 0.10% abc ld-2.17.so [.] _start > >> > >> > >> As you can see __libc_start_main -> main -> c -> b -> a callchain > >> show up in the output. > > > > This looks really useful! > > Thanks! :) > > > > > A couple of details: > > > > 1) > > > > This is pretty close to SysProf output, right? So why not use the > > well-known SysProf naming and call the first column 'self' and the > > second column 'total'? I think those names are pretty intuitive and > > it would help people who come from SysProf over to perf. > > Okay, I can do it. (Although sysprof seems to call it 'cumulative' > rather than 'total' - but I think the 'total' is better since it's > simpler and shorter.)
OTOH cumulative probably express better what it is about. Or branch cumulative may be. Total is confusing because we don't know against what it is. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
