perf: Fix python API overhead when CUDAGraph is not enabled#969
Merged
yzh119 merged 9 commits intoflashinfer-ai:mainfrom Mar 24, 2025
Merged
perf: Fix python API overhead when CUDAGraph is not enabled#969yzh119 merged 9 commits intoflashinfer-ai:mainfrom
yzh119 merged 9 commits intoflashinfer-ai:mainfrom
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After the changes, here is the norm python API performance (cpu and python overhead included, https://gist.github.com/yzh119/d9bf2abbb667abcbb806979f4bbea633): A100 PerformanceThis PRv0.1.6H100 PerformanceThis PR (no PDL)This PR (w/ PDL)v0.1.6 (no PDL) |
This was referenced Mar 24, 2025
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This PR fixes issue #960 , we identifies several performance bottlenecks for our python APIs when kernels are not captured by CUDAGraph:
with input.device as device:)These issues were introduced in JIT refactor after v0.1.6 (mainly for accelerating JIT compilation speed). In this PR, we changed back to get stream and device guard in C++).
@MichoChan @xiaoqi35