On 2/7/24 06:48, Alexander Monakov wrote:
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<amona...@ispras.ru>
Signed-off-by: Mikhail Romanov<mmroma...@ispras.ru>
---
util/bufferiszero.c | 3 ---
1 file changed, 3 deletions(-)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
r~
