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Revision tags: release/13.5.0-p6, release/14.3.0-p5, release/13.5.0-p5, release/14.2.0-p7, release/14.3.0-p4, release/14.3.0-p3, release/14.2.0-p6, release/13.5.0-p4, release/13.5.0-p3, release/14.2.0-p5, release/14.3.0-p2, release/14.3.0-p1, release/14.2.0-p4, release/13.5.0-p2, release/14.3.0, release/13.4.0-p5, release/13.5.0-p1, release/14.2.0-p3, release/13.5.0, release/14.2.0-p2, release/14.1.0-p8, release/13.4.0-p4, release/14.1.0-p7, release/14.2.0-p1, release/13.4.0-p3, release/14.2.0, release/13.4.0 |
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08af0bbc |
| 19-Jul-2024 |
Strahinja Stanišić <strajabot@FreeBSD.org> |
libc: scalar strchrnul() in RISC-V assembly
Scalar implementation of strchrnul() in RISC-V assembly and changes to the
corresponding manpage.
Performance was benchmarked on a HiFive Unmatched (SiFi
libc: scalar strchrnul() in RISC-V assembly
Scalar implementation of strchrnul() in RISC-V assembly and changes to the
corresponding manpage.
Performance was benchmarked on a HiFive Unmatched (SiFive HF105-001) board
using: https://github.com/clausecker/strperf
os: FreeBSD
arch: riscv
│ strchrnul_baseline │ strchrnul_scalar │
│ sec/op │ sec/op vs base │
Short 680.2µ ± 5% 435.3µ ± 0% -36.01% (p=0.000 n=20)
Mid 314.7µ ± 3% 221.4µ ± 0% -29.63% (p=0.000 n=20)
Long 152.3µ ± 0% 138.5µ ± 0% -9.08% (p=0.000 n=20)
geomean 319.5µ 237.2µ -25.75%
│ strchrnul_baseline │ strchrnul_scalar │
│ MiB/s │ MiB/s vs base │
Short 183.8 ± 5% 287.2 ± 0% +56.27% (p=0.000 n=20)
Mid 397.3 ± 3% 564.6 ± 0% +42.12% (p=0.000 n=20)
Long 820.5 ± 0% 902.5 ± 0% +9.99% (p=0.000 n=20)
geomean 391.3 527.0 +34.68%
MFC after: 1 month
MFC to: stable/15
Approved by: markj (mentor)
Reviewed by: fuz
Sponsored by: Google LLC (GSoC 2024)
Differential Revision: https://reviews.freebsd.org/D46047
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