feat(example): add any-sender-size operation-state measurement - #391
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Measures the operation state produced by connecting starts_on(sched, just(42)) through exec::any_sender / exec::any_receiver against the concrete operation state for the same pipeline, and counts the heap allocations made by connect and start through the replaceable operator new. Published so the numbers in P4251 have a checkable setup. Against stdexec 307b83c5, x86-64 Linux, Release: connect performs one allocation of 112-200 bytes in every case, exceeding the 64-byte small buffer; start allocates nothing; the concrete path allocates nothing.
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An automated preview of the documentation is available at https://391.capy.prtest3.cppalliance.org/index.html If more commits are pushed to the pull request, the docs will rebuild at the same URL. 2026-08-27 18:33:17 UTC |
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## develop #391 +/- ##
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Coverage 98.09% 98.09%
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Files 130 130
Lines 6291 6291
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Hits 6171 6171
Misses 120 120
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Measures the operation state produced by connecting starts_on(sched, just(42)) through exec::any_sender / exec::any_receiver against the concrete operation state for the same pipeline, and counts the heap allocations made by connect and start through the replaceable operator new. Published so the numbers in P4251 have a checkable setup.
Against stdexec 307b83c5, x86-64 Linux, Release: connect performs one allocation of 112-200 bytes in every case, exceeding the 64-byte small buffer; start allocates nothing; the concrete path allocates nothing.