mirror of
https://github.com/fergalmoran/ladybird.git
synced 2025-12-22 09:19:03 +00:00
d294f150ed
This moves both Gfx::CanonicalCode::write_symbol() and
Compress::CanonicalCode::write_symbol() inline.
It also adds `__attribute__((always_inline))` on the arguments
to visit() in the latter. (ALWAYS_INLINE doesn't work on lambdas.)
Numbers with `ministat`: I ran once:
Build/lagom/bin/image -o test.bmp Base/res/wallpapers/sunset-retro.png
and then ran to bench:
~/src/hack/bench.py -n 20 -o bench_foo1.txt \
Build/lagom/bin/image -o test.webp test.bmp
...and then `ministat bench_foo1.txt bench_foo2.txt` to compare.
The previous commit increased the time for this command by 38% compared
to the before state.
With this, it's an 8.6% regression. So still a regression, but a smaller
one.
Or, in other words, this commit reduces times by 21% compared to the
previous commit.
Numbers with hyperfine are similar -- with this on top of the previous
commit, this is a 7-11% regression, instead of an almost 50% regression.
(A local branch that changes how we compute CanonicalCodes so that we
actually compress a bit is perf-neutral since the image writing code
doesn't change.)
`hyperfine 'image -o test.webp test.bmp'`:
* Before: 23.7 ms ± 0.7 ms (116 runs)
* Previous commit: 33.2 ms ± 0.8 ms (82 runs)
* This commit: 25.5 ms ± 0.7 ms (102 runs)
`hyperfine 'animation -o wow.webp giphy.gif'`:
* Before: 85.5 ms ± 2.0 ms (34 runs)
* Previous commit: 127.7 ms ± 4.4 ms (22 runs)
* This commit: 95.3 ms ± 2.1 ms (31 runs)
`hyperfine 'animation -o wow.webp 7z7c.gif'`:
* Before: 12.6 ms ± 0.6 ms (198 runs)
* Previous commit: 16.5 ms ± 0.9 ms (153 runs)
* This commit: 13.5 ms ± 0.6 ms (186 runs)