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| author | Dmitry Vyukov <dvyukov@google.com> | 2020-04-25 15:05:19 +0200 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2020-05-05 14:01:52 +0200 |
| commit | 4b76dd258977f4bc9b8a1996680f8b9fd96713d2 (patch) | |
| tree | 5de611ae32f2f137053888d73bf81b40feaf59b1 /docs/linux/external_fuzzing_usb.md | |
| parent | 8cbfd71747917061fa744c07972ba65a7f73a236 (diff) | |
prog: use Ref as Arg type
Use Ref in Arg instead of full Type interface.
This reduces size of all args. In partiuclar the most common
ConstArg is reduces from 32 bytes to 16 and now does not
contain any pointers (better for GC).
Running syz-db bench on a beefy corpus: before:
allocs 7262 MB (18 M), next GC 958 MB, sys heap 1279 MB, live allocs 479 MB (8 M), time 9.704699958s
allocs 7262 MB (18 M), next GC 958 MB, sys heap 1279 MB, live allocs 479 MB (8 M), time 9.873792394s
allocs 7262 MB (18 M), next GC 958 MB, sys heap 1279 MB, live allocs 479 MB (8 M), time 9.820479906s
after:
allocs 7163 MB (18 M), next GC 759 MB, sys heap 1023 MB, live allocs 379 MB (8 M), time 8.938939937s
allocs 7163 MB (18 M), next GC 759 MB, sys heap 1087 MB, live allocs 379 MB (8 M), time 9.410243167s
allocs 7163 MB (18 M), next GC 759 MB, sys heap 1023 MB, live allocs 379 MB (8 M), time 9.38225806s
Max heap and live heap are reduced by 20%.
Update #1580
Diffstat (limited to 'docs/linux/external_fuzzing_usb.md')
0 files changed, 0 insertions, 0 deletions