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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2021-02-05 19:53:48 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-02-18 16:03:37 -0300 |
| commit | 20aa39708a5999b7921b27482a756766272286ac (patch) | |
| tree | 66de40f6014defdcb5cfc0153ba30bf2164ff433 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | perf intel-pt: Fix missing CYC processing in PSB (diff) | |
| download | wireguard-linux-20aa39708a5999b7921b27482a756766272286ac.tar.xz wireguard-linux-20aa39708a5999b7921b27482a756766272286ac.zip | |
perf intel-pt: Fix premature IPC
The code assumed a change in cycle count means accurate IPC. That is not
correct, for example when sampling both branches and instructions, or at
a FUP packet (which is not CYC-eligible) address. Fix by using an explicit
flag to indicate when IPC can be sampled.
Fixes: 5b1dc0fd1da06 ("perf intel-pt: Add support for samples to contain IPC ratio")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20210205175350.23817-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions