Messages in this thread Patch in this message | | | Date | Tue, 12 Aug 2014 09:09:15 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] perf/x86/uncore: export basic memory events for IVT IMC PMU |
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On Tue, Aug 12, 2014 at 08:00:31AM +0200, Stephane Eranian wrote: > arch/x86/kernel/cpu/perf_event_intel_uncore.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c > index cfc6f9d..800e087 100644 > --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c > +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c > @@ -1391,6 +1391,7 @@ static struct intel_uncore_type ivt_uncore_imc = { > .fixed_ctr_bits = 48, > .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR, > .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL, > + .event_descs = snbep_uncore_imc_events, > IVT_UNCORE_PCI_COMMON_INIT(), > };
I changed that to the below; seeing how I have the uncore splitup patches.
Also, I'm very tempted to do a s/ivt/ivbep/ on that whole thing. We really should not mix all these stupid names.
--- Subject: perf/x86/uncore: export basic memory events for IVT IMC PMU From: Stephane Eranian <eranian@google.com> Date: Tue, 12 Aug 2014 08:00:31 +0200
This patch exposes two basic events for Ivytown IMC uncore PMU:
- cas_count_read: number of full-cache line reads to memory controller - cas_count_write: number of full-cache line writes to memory controller
Those events use the same encoding as for SNB-EP, so reuse the same event table. See specification in:
http://www.intel.com/content/dam/www/public/us/en/documents/manuals/xeon-e5-2600-v2-uncore-manual.pdf
By aggregating all the read and write events from all the memory controllers of each processor socket, one can determine the total memory bandwidth utilization.
Cc: zheng.z.yan@intel.com Cc: mingo@elte.hu Cc: ak@linux.intel.com Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140812060031.GA25239@quad --- arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c @@ -1422,6 +1422,7 @@ static struct intel_uncore_type ivt_unco .fixed_ctr_bits = 48, .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR, .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL, + .event_descs = snbep_uncore_imc_events, IVT_UNCORE_PCI_COMMON_INIT(), }; [unhandled content-type:application/pgp-signature] | |