diff options
| author | Andi Kleen <[email protected]> | 2015-03-20 10:11:24 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-04-02 17:33:20 +0200 |
| commit | cd1f11de69226cc7ce7e7f22bdab9010103ddaa6 (patch) | |
| tree | 6543b48a8b40ab87617790a9a40a5cc52ea1828b /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 1a78d93750bb5f61abdc59a91fc3bd06a214542a (diff) | |
perf/x86/intel: Avoid rewriting DEBUGCTL with the same value for LBRs
perf with LBRs on has a tendency to rewrite the DEBUGCTL MSR with
the same value. Add a little optimization to skip the unnecessary
write.
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions