Messages in this thread | | | Date | Fri, 3 May 2013 19:00:07 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 1/3] perf, x86: Blacklist all MEM_*_RETIRED events for IVB |
| |
On Fri, May 03, 2013 at 07:35:07AM -0700, Andi Kleen wrote: > On Fri, May 03, 2013 at 02:11:23PM +0200, Peter Zijlstra wrote: > > Errata BV98 states that all MEM_*_RETIRED events corrupt the counter > > value of the SMT sibling's counters. Blacklist these events > > I disagree with this patch. This is just overkill and not needed > at all.
Then give me a patch that both completely describes the problem and ensures isolation so that no counters get corrupted (and isn't too invasive).
So far you've failed on both counts.
| |