Hi Ingo, On Tue, 26 Mar 2013 15:40:23 +0100, Ingo Molnar wrote: > * Namhyung Kim <[email protected]> wrote: > >> From: Namhyung Kim <[email protected]> >> >> New addr sort key provides a way to sort the entries by the symbol >> addresses. > > No objections from me - just wondering about the motivation: why would we > want to sort by symbol address?
In fact, it came from bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=55561 > > Perhaps to see the overhead layout/distribution within a DSO, to better > cache-pack hot functions by placing them next to each other? > > Putting a short usecase into the changelog (or even better, the > documentation) would be nice. Well, I didn't thought it much, but yeah, aforementioned usecase looks promising. Also it might be useful to find out which part is the hotpath in a function if you have some really big functions (possibly due to auto-inlining or something). Arnaldo, do you have other usecase/scenario in mind? Thanks, Namhyung -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
