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| author | Chuck Lever <[email protected]> | 2022-06-07 20:47:58 +0000 |
|---|---|---|
| committer | Chuck Lever <[email protected]> | 2022-06-08 16:39:37 +0000 |
| commit | 62ed448cc53b654036f7d7f3c99f299d79ad14c3 (patch) | |
| tree | 8c239a47853628dff53a3829221b00baa6220910 /scripts/clang-tools/gen_compile_commands.py | |
| parent | SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer() (diff) | |
| download | kernel-62ed448cc53b654036f7d7f3c99f299d79ad14c3.tar.gz kernel-62ed448cc53b654036f7d7f3c99f299d79ad14c3.zip | |
SUNRPC: Optimize xdr_reserve_space()
Transitioning between encode buffers is quite infrequent. It happens
about 1 time in 400 calls to xdr_reserve_space(), measured on NFSD
with a typical build/test workload.
Force the compiler to remove that code from xdr_reserve_space(),
which is a hot path on both the server and the client. This change
reduces the size of xdr_reserve_space() from 10 cache lines to 2
when compiled with -Os.
Signed-off-by: Chuck Lever <[email protected]>
Reviewed-by: J. Bruce Fields <[email protected]>
Diffstat (limited to 'scripts/clang-tools/gen_compile_commands.py')
0 files changed, 0 insertions, 0 deletions