diff options
| author | Stephane Eranian <eranian@google.com> | 2014-08-12 08:00:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-08-13 07:51:17 +0200 |
| commit | 85a16ef66cc8a053de80aadf13722a2c1254d346 (patch) | |
| tree | 16dbb8237348e44c30ac76f29d85b0d0a0620733 /kernel/res_counter.c | |
| parent | perf/x86: Clean up __intel_pmu_pebs_event() code (diff) | |
| download | linux-85a16ef66cc8a053de80aadf13722a2c1254d346.tar.xz linux-85a16ef66cc8a053de80aadf13722a2c1254d346.zip | |
perf/x86/uncore: Export basic memory events for IVT IMC PMU
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.
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
Cc: zheng.z.yan@intel.com
Cc: ak@linux.intel.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/res_counter.c')
0 files changed, 0 insertions, 0 deletions