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| author | Michael S. Tsirkin <[email protected]> | 2014-05-28 14:07:02 +0000 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2014-06-09 13:21:06 +0000 |
| commit | 98f9ca0a3faa99b7388578d55eccecf272be4038 (patch) | |
| tree | 991e7bc48ed0cb9da73aefe8cf454a54fcf96435 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | vhost-net: extend device allocation to vmalloc (diff) | |
| download | kernel-98f9ca0a3faa99b7388578d55eccecf272be4038.tar.gz kernel-98f9ca0a3faa99b7388578d55eccecf272be4038.zip | |
vhost: replace rcu with mutex
All memory accesses are done under some VQ mutex.
So lock/unlock all VQs is a faster equivalent of synchronize_rcu()
for memory access changes.
Some guests cause a lot of these changes, so it's helpful
to make them faster.
Reported-by: "Gonglei (Arei)" <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions