Hi Attilio Rao! On Sun, 23 Nov 2008 14:02:22 +0100; Attilio Rao wrote about '[PATCH] pmcannotate tool':
> pmcannotate is a tool that prints out sources of a tool (in C or > assembly) with inlined profiling informations retrieved by a prior > pmcstat analysis. > If compared with things like callgraph generation, it prints out > profiling on a per-instance basis and this can be useful to find, for > example, badly handled caches, too high latency instructions, etc. [...] > objdump is not the only one tool on which pmcannotare rely. Infact, in > order to have it working, pmcstat needs to be present too because we > need to retrieve, from the pmcstat raw output, informations about the > sampled PCs (in particular the name of the function they live within, > its start and ending addresses). As long as currently pmcstat doesn't > return those informations, a new option has been added to the tool > (-m) which can extract (from a raw pmcstat output) all pc sampled, > name of the functions and symbol bundaries they live within. [...] > The patch can be found here: > http://www.freebsd.org/~attilio/pmcannotate.diff/ > where pmcannotate/ dir contains the code and needs to go under > /usr/src/usr.sbin/ and the patch has diffs against pmcstat and > Makefile. It looks like this the thing I need, please see parallel thread "hwpmc granularity and 6.4 network performance", I have CPU hog ipfw_chk() which is 1200+ lines long and want to know which parts are most hogs. But that part of your patch which is for pmcstat isn't applying to 6.4 :( Could you please provide another for this ver? -- WBR, Vadim Goncharov. ICQ#166852181 mailto:[EMAIL PROTECTED] [Moderator of RU.ANTI-ECOLOGY][FreeBSD][http://antigreen.org][LJ:/nuclight] _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"
