Cmd/bench shards - #1716
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…CONNECTIVITY BECOMES MULTITHREADED
asv preimports the benchmark suite before it runs any setup_cache (asv/runner.py, spawner.preimport() ahead of the run loop), so on a cold cache bench_connectivity's import-time preload_topologies is what fills it -- serially, in the forkserver parent, before a single benchmark starts. CachedFixtures.setup_cache then finds everything already built, and prime(workers=...) never runs on the path it was written for. Filling it from the CLI first puts those reads back in the parallel prime. Worth a second or two on the GitHub runners, which only see the oQU grids; worth rather more on a machine that can reach the four dyamond grids on campaign storage. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Companion to #1700
Overview
This PR should add more async capabilities to the benchmark suite, allowiing most benchmarks to run in parallel.
PR Checklist
General
Testing & Benchmarking
Documentation and Examples
docs/api.rst; internal (private) function names start with an underscore (_)AI Disclosure
AI Usage: Claude Opus 5