3 ms·
What are you doing where you see anything remotely close to double-digit-% gains from disabling spectre mitigations?
by kllrnohj 2y ago
What are you doing where you see anything remotely close to double-digit-% gains from disabling spectre mitigations?
- umvi 2y agomy specific use case where I see significant performance improvement is image segmentation pipelines (which involve opencv-style image processing and AI inference). YMMV depending on your CPU I suppose.
- iforgot22 2y agoVideo editing maybe? Which is not going to involve running untrusted code.
- kllrnohj 2y agoIt's not going to hammer on syscalls, either, so it won't have any spectre-related regressions.
- AHTERIX5000 2y agoIf mitigations include disabling SMT and the workload is compiling code, then the difference is easily in double digits.
- kllrnohj 2y agoWhat OS ships the mitigation of disabling SMT by default? Surely they just meant things like the retpoline mitigations in syscalls?