Hi Peter, On Fri, 24 Oct 2014 15:14:40 +0200, Peter Zijlstra wrote: > On Fri, Oct 24, 2014 at 09:54:23AM +0200, Ingo Molnar wrote: >> >> * Peter Zijlstra <pet...@infradead.org> wrote: >> > Its what I thought initially, I tried doing perf record with and >> > without, but then I ran into perf diff not quite working for me and I've >> > yet to find time to kick that thing into shape. >> >> Might be the 'perf diff' regression fixed by this: >> >> 9ab1f50876db perf diff: Add missing hists__init() call at tool start >> >> I just pushed it out into tip:master. > > I was on tip/master, so unlikely to be that as I was likely already > having it. > > perf-report was affected too, for some reason my CONFIG_DEBUG_INFO=y > vmlinux wasn't showing symbols (and I double checked that KASLR crap was > disabled, so that wasn't confusing stuff either). > > When I forced perf-report to use kallsyms it works, however perf-diff > doesn't have that option. > > So there's two issues there, 1) perf-report failing to generate useful > output and 2) per-diff lacking options to force it to behave.
Did the perf-report fail to show any (kernel) symbols or are they wrong symbols? Maybe it's related to this: https://lkml.org/lkml/2014/9/22/78 Thanks, Namhyung -- 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/
