On Mon, Jan 21, 2013 at 08:10:03AM -0800, Jeff wrote: > Specs: > i5 Sandy Bridge 2400 > Model 42 > Stepping 7 > > Ubuntu 12.10 64 bit. > Dell Optiplex 790 > > > On Mon, Jan 21, 2013 at 6:38 AM, Jiri Olsa <jo...@redhat.com> wrote: > > On Fri, Jan 18, 2013 at 04:28:51PM +0000, Jeff Johnson wrote: > >> Dervin Thunk <dervin.thunk <at> gmail.com> writes: > >> > >> > > >> > Dear all, > >> > > >> > I'm trying to measure the LLC events of a program. I'm running > >> > linux-tools-3.2.0- 34 on a fairly recent 4 core Intel machine. For a > >> > certain program that reads a 64 MB file into memory, I get > >> > > >> > Performance counter stats for './algo data/E.dna': > >> > > >> > 0 LLC-loads > >> > 0 LLC-load-misses > >> > >> > >> Dervin, > >> I am experiencing the same issue. I am running perf on an i5 machine. Have > >> you > >> gotten any feedback regarding this? > > > > I'm getting some 'sane' numbers on 2 cores i7 SandyBridge on > > 3.6.11-1.fc17.x86_64 > > > > not sure if this was broken back in 3.2.0 > > > > please be more specific on what system you're testing on > > and provide whole perf stat command line > > > > jirka > > Specs: > i5 Sandy Bridge 2400 > Model 42 > Stepping 7 > > Ubuntu 12.10 64 bit. > Dell Optiplex 790 > > Perf command: perf stat -e LLC-loads -r 3 <my binary under test>
I found Ubuntu 12.10 is like 3.5 kernel, right? There are some perf tool cache event fixies after 3.5, but non of the tags I tried showed the error. Any chance you could try with latest upstream - kernel/perf? jirka -- To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
