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author | Kan Liang <kan.liang@linux.intel.com> | 2019-05-07 16:16:31 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-05-15 22:36:47 +0300 |
commit | bf6d18cffa5f26bd5dc71485c2a2ad0c42a0ce60 (patch) | |
tree | bbd848cdd18adb844244db7e03f6f87ac7787685 /tools/perf/pmu-events/jevents.c | |
parent | b62d18aba1109506c1926ab7b564c4ac3bd48786 (diff) | |
download | linux-bf6d18cffa5f26bd5dc71485c2a2ad0c42a0ce60.tar.xz |
perf vendor events intel: Add uncore_upi JSON support
Perf cannot parse UPI (Intel's "Ultra Path Interconnect" [1]) events.
# perf stat -e UPI_DATA_BANDWIDTH_TX
event syntax error: 'UPI_DATA_BANDWIDTH_TX'
\___ parser error
Run 'perf list' for a list of valid events
The JSON lists call the box UPI LL, while perf calls it upi. Add
conversion support to JSON to convert the unit properly.
Committer notes:
[1] https://en.wikipedia.org/wiki/Intel_Ultra_Path_Interconnect
"The Intel Ultra Path Interconnect (UPI) is a point-to-point processor
interconnect developed by Intel which replaced the Intel QuickPath
Interconnect (QPI) in Xeon Skylake-SP platforms starting in 2017.
UPI is a low-latency coherent interconnect for scalable multiprocessor
systems with a shared address space. It uses a directory-based home
snoop coherency protocol with a transfer speed of up to 10.4 GT/s.
Supporting processors typically have two or three UPI links."
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1557234991-130456-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/pmu-events/jevents.c')
-rw-r--r-- | tools/perf/pmu-events/jevents.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c index 68c92bb599ee..daaea5003d4a 100644 --- a/tools/perf/pmu-events/jevents.c +++ b/tools/perf/pmu-events/jevents.c @@ -235,6 +235,7 @@ static struct map { { "iMPH-U", "uncore_arb" }, { "CPU-M-CF", "cpum_cf" }, { "CPU-M-SF", "cpum_sf" }, + { "UPI LL", "uncore_upi" }, {} }; |