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| author | Alexander Monakov <amonakov@ispras.ru> | 2024-02-06 23:48:07 +0300 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-05-03 08:03:05 -0700 |
| commit | 93a6085618f16fb2cd316d1e84f1a638b7e2d8ff (patch) | |
| tree | 68e4b09262ecdf1029e21b95ac5009ba53212579 /plugins/api.c | |
| parent | cbe3d5264631aa193fd2705820cbde6c5a602abb (diff) | |
| download | focaccia-qemu-93a6085618f16fb2cd316d1e84f1a638b7e2d8ff.tar.gz focaccia-qemu-93a6085618f16fb2cd316d1e84f1a638b7e2d8ff.zip | |
util/bufferiszero: Remove useless prefetches
Use of prefetching in bufferiszero.c is quite questionable: - prefetches are issued just a few CPU cycles before the corresponding line would be hit by demand loads; - they are done for simple access patterns, i.e. where hardware prefetchers can perform better; - they compete for load ports in loops that should be limited by load port throughput rather than ALU throughput. Signed-off-by: Alexander Monakov <amonakov@ispras.ru> Signed-off-by: Mikhail Romanov <mmromanov@ispras.ru> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240206204809.9859-5-amonakov@ispras.ru>
Diffstat (limited to 'plugins/api.c')
0 files changed, 0 insertions, 0 deletions