diff options
| author | Mateusz Guzik <[email protected]> | 2023-08-23 07:06:08 +0200 |
|---|---|---|
| committer | Dennis Zhou <[email protected]> | 2023-08-25 08:06:53 -0700 |
| commit | c439d5e8a0deb7310b5bb4e5f2fe47c40ff5297f (patch) | |
| tree | ec3fa53c5487f15036a02f6eb29d70896302baa5 /scripts/clang-tools/gen_compile_commands.py | |
| parent | f7d77dfc91f747f64cb00884fd6d7940c3b49fca (diff) | |
pcpcntr: add group allocation/free
Allocations and frees are globally serialized on the pcpu lock (and the
CPU hotplug lock if enabled, which is the case on Debian).
At least one frequent consumer allocates 4 back-to-back counters (and
frees them in the same manner), exacerbating the problem.
While this does not fully remedy scalability issues, it is a step
towards that goal and provides immediate relief.
Signed-off-by: Mateusz Guzik <[email protected]>
Reviewed-by: Dennis Zhou <[email protected]>
Reviewed-by: Vegard Nossum <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[Dennis: reflowed a few lines]
Signed-off-by: Dennis Zhou <[email protected]>
Diffstat (limited to 'scripts/clang-tools/gen_compile_commands.py')
0 files changed, 0 insertions, 0 deletions