Messages in this thread | | | Subject | Re: [PATCH 1/1] perf tools: Add missing user space support for config1/config2 | From | Peter Zijlstra <> | Date | Sat, 23 Apr 2011 09:49:53 +0200 |
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On Fri, 2011-04-22 at 16:54 -0700, Andi Kleen wrote: > > > > #define SNB_PF_LLC_DATA_RD (1 << 7) > > #define SNB_PF_LLC_RFO (1 << 8) > > #define SNB_PF_LLC_IFETCH (1 << 9) > > #define SNB_BUS_LOCKS (1 << 10) > > #define SNB_STRM_ST (1 << 11) > > /* hole */ > > #define SNB_OFFCORE_OTHER (1 << 15) > > #define SNB_COMMON (1 << 16) > > #define SNB_NO_SUPP (1 << 17) > > #define SNB_LLC_HITM (1 << 18) > > #define SNB_LLC_HITE (1 << 19) > > #define SNB_LLC_HITS (1 << 20) > > #define SNB_LLC_HITF (1 << 21) > > /* hole */ > > #define SNB_SNP_NONE (1 << 31) > > #define SNB_SNP_NOT_NEEDED (1 << 32) > > #define SNB_SNP_MISS (1 << 33) > > #define SNB_SNP_NO_FWD (1 << 34) > > #define SNB_SNP_FWD (1 << 35) > > #define SNB_HITM (1 << 36) > > #define SNB_NON_DRAM (1 << 37) > > > > #define SNB_DMND_READ (SNB_DMND_DATA_RD) > > #define SNB_DMND_WRITE (SNB_DMND_RFO|SNB_DMND_WB|SNB_STRM_ST) > > #define SNB_DMND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_DATA_RFO) > > > > Is what I came up with, but I'm stumped on how to construct: > > > > #define SNB_L3_HIT > > All the LLC hits together.
Bits 18-21 ?
> Or it can be done with the PEBS memory latency event (like Lin-Ming's patch) or > with mem_load_uops_retired (but then only for loads) > > > #define SNB_L3_MISS > > Don't set any of the LLC bits
So a 0 for the response type field? That's not valid. You have to set some bit between 16-37.
> > > > > #define SNB_ALL_DRAM > > Just don't set NON_DRAM
So bits 17-21|31-36 for the response type field?
That seems wrong as that would include what we previously defined to be L3_HIT, which never makes it to DRAM.
> > #define SNB_REMOTE_DRAM > > The current client SNBs for which those tables are don't have remote > DRAM.
So what you're telling us is that simply because Intel hasn't shipped a multi-socket SNB system yet they either:
1) omitted a few bits from that table, 2) have a completely different offcore response msr just for kicks?
Feh!
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