On Fri, May 20, 2016 at 01:15:08PM -0700, Andi Kleen wrote: > From: Andi Kleen <[email protected]> > > Add srcline_from and srcline_to branch sort keys that allow > to show the source lines of a branch. That makes it much easier > to track down where particular branches happen in the program, > for example to examine branch mispredictions, or to associate > it with cycle counts: > > % perf record -b -e cycles:p ./tcall > % perf report --sort srcline_from,srcline_to,mispredict > ... > 15.10% tcall.c:18 tcall.c:10 > N > 14.83% tcall.c:11 tcall.c:5 > N > 14.12% tcall.c:7 tcall.c:12 > N > 14.04% tcall.c:12 tcall.c:5 > N > 12.42% tcall.c:17 tcall.c:18 > N > 12.39% tcall.c:7 tcall.c:13 > N > 12.27% tcall.c:13 tcall.c:17 > N > ... > > % perf report --sort srcline_from,srcline_to,cycles > ... > 17.12% tcall.c:18 tcall.c:11 > 1 > 17.01% tcall.c:12 tcall.c:6 > 1 > 16.98% tcall.c:11 tcall.c:6 > 1 > 15.91% tcall.c:17 tcall.c:18 > 1 > 6.38% tcall.c:7 tcall.c:17 > 7 > 4.80% tcall.c:7 tcall.c:12 > 8 > 4.21% tcall.c:7 tcall.c:17 > 8 > 2.67% tcall.c:7 tcall.c:12 > 7 > 2.62% tcall.c:7 tcall.c:12 > 10 > 2.10% tcall.c:7 tcall.c:17 > 9 > 1.58% tcall.c:7 tcall.c:12 > 6 > 1.44% tcall.c:7 tcall.c:12 > 5 > 1.38% tcall.c:7 tcall.c:12 > 9 > 1.06% tcall.c:7 tcall.c:17 > 13 > 1.05% tcall.c:7 tcall.c:12 > 4 > 1.01% tcall.c:7 tcall.c:17 > 6 > > Open issues: > - Some kernel symbols get misresolved.
Acked-by: Jiri Olsa <[email protected]> thanks, jirka
