diff options
| author | Nicholas Piggin <[email protected]> | 2021-11-23 19:52:24 +1000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2021-11-24 21:09:02 +1100 |
| commit | 241d1f19f0e5c257881a0661f201b51dc3e57f8c (patch) | |
| tree | 5d63136f9c86a397037e13b55ccf2837267e6593 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | b49c65c5f9f1dac4ef1764578ad55bacf526eb38 (diff) | |
KVM: PPC: Book3S HV P9: Optimise hash guest SLB saving
slbmfee/slbmfev instructions are very expensive, moreso than a regular
mfspr instruction, so minimising them significantly improves hash guest
exit performance. The slbmfev is only required if slbmfee found a valid
SLB entry.
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions