On Thu, Apr 24, 2014 at 10:41:39PM +0900, Namhyung Kim wrote: > Hi Don, > > 2014-04-23 (수), 08:58 -0400, Don Zickus: > > On Wed, Apr 23, 2014 at 03:15:35PM +0900, Namhyung Kim wrote: > > > On Tue, 22 Apr 2014 17:16:47 -0400, Don Zickus wrote: > > > > ./perf mem record -a grep -r foo /* > /dev/null > > > > ./perf mem report -F overhead,symbol_daddr,pid -s symbol_daddr,pid > > > > --stdio > > > > > > > > I was thinking I could sort everything based on the symbol_daddr and > > > > pid. > > > > Then re-sort the output to display the highest 'symbol_daddr,pid' pair. > > > > But it didn't seem to work that way. Instead it seems like I get the > > > > original sort just displayed in the -F format. > > > > > > Could you please show me the output of your example? > > > > > > # To display the perf.data header info, please use --header/--header-only > > # options. > > # > > # Samples: 96K of event 'cpu/mem-loads/pp' > > # Total weight : 1102938 > > # Sort order : symbol_daddr,pid > > # > > # Overhead Data Symbol Command: Pid > > # ........ > > ...................................................................... > > # > > 0.00% [k] 0xffff8807a8c1cf80 grep:116437 > > 0.00% [k] 0xffff8807a8c8cee0 grep:116437 > > 0.00% [k] 0xffff8807a8dceea0 grep:116437 > > 0.01% [k] 0xffff8807a9298dc0 grep:116437 > > 0.01% [k] 0xffff8807a934be40 grep:116437 > > 0.00% [k] 0xffff8807a9416ec0 grep:116437 > > 0.02% [k] 0xffff8807a9735700 grep:116437 > > 0.00% [k] 0xffff8807a98e9460 grep:116437 > > 0.02% [k] 0xffff8807a9afc890 grep:116437 > > 0.00% [k] 0xffff8807aa64feb0 grep:116437 > > 0.02% [k] 0xffff8807aa6b0030 grep:116437 > > Hmm.. it seems that it's exactly sorted by the data symbol addresses, so > I don't see any problem here. What did you expect? If you want to see > those symbol_daddr,pid pair to be sorted by overhead, you can use the > one of -F or -s option only.
Good question. I guess I was hoping to see things sorted by overhead, but as you said removing all the -F options gives me that. I have been distracted with other fires this week, I lost focus at what I was trying to accomplish. Let me figure that out again and try to come up with a more clear email explaining what I was looking for (for myself at least :-) ). Sorry for the distraction. Cheers, Don -- 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/
