diff options
| author | Feng Jiang <jiangfeng@kylinos.cn> | 2026-04-03 19:28:47 -0600 |
|---|---|---|
| committer | Paul Walmsley <pjw@kernel.org> | 2026-04-04 18:42:44 -0600 |
| commit | 5ba15d419fab848a3813eb56bbcad00e291fbc49 (patch) | |
| tree | 04f14e84abe3362886a975255d904dda7b944042 /include/linux/timerqueue.h | |
| parent | e73bcb3708a69369d506e5bc6a63d4fc13d8e28a (diff) | |
riscv: lib: add strnlen() implementation
Add an optimized strnlen() implementation for RISC-V. This version
includes a generic optimization and a Zbb-powered optimization using
the 'orc.b' instruction, derived from the strlen() implementation.
Benchmark results (QEMU TCG, rv64):
Length | Original (MB/s) | Optimized (MB/s) | Improvement
-------|-----------------|------------------|------------
16 B | 179 | 309 | +72.6%
512 B | 347 | 1562 | +350.1%
4096 B | 356 | 1878 | +427.5%
Suggested-by: Qingfang Deng <dqfext@gmail.com>
Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Link: https://patch.msgid.link/20260130025018.172925-7-jiangfeng@kylinos.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions