Optimize cranelift-codegen in dev profile for faster E2E tests#736
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Cranelift compiles Wasm to native code for every E2E test. Without optimization, this runs in debug mode and accounts for ~70% of test time. Setting opt-level=2 for cranelift-codegen reduces O0 test suite time from 319s to 246s (~23% faster). https://claude.ai/code/session_01MvCfQRXKLDn386HwGHfSQM
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Summary
opt-level = 2forcranelift-codegenin the dev profile to speed up E2E testsProfiling details
Profiled the O0 E2E test suite (877 tests) and found:
OnceLock— not a bottleneckLinker::clone()≈add_to_linkercost)cranelift-codegenaloneTest plan
https://claude.ai/code/session_01MvCfQRXKLDn386HwGHfSQM