Messages in this thread | | | Date | Wed, 23 Apr 2014 22:16:42 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH 0/3] perf tools: Speedup DWARF unwind |
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On Thu, Apr 17, 2014 at 07:39:09PM +0200, Jiri Olsa wrote: > hi, > trying to speedup DWARF unwind report code by factoring > related code: > - caching sample's registers access > - keep dso data file descriptor open for the > life of the dso object > - replace dso cache code by mapping dso data file > directly for the life of the dso object > > The speedup is mainly for libunwind unwind. The libdw will benefit > mainly from cached registers access, because it handles dso data > accesses by itself.. and anyway it's still faster ;-). > > Also reachable in here: > git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git > perf/core_unwind_speedup
rebased to latest tip perf/core, review appreciated ;-)
jirka
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