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The unit test host peaks near 8 GB, mostly in Tests.Convenience #1883
Description
The unit test host peaks near 8 GB on master. Measured on 790feec (net10.0, Release), as the test host's resident memory:
| Run | Peak |
|---|---|
| whole suite | 7,947 MB (killed by a local 8 GB guard in one of two runs) |
FullyQualifiedName~Tests.Convenience |
5,832 MB in 16 s |
DocumentationExamplesRunTest alone |
2,505 MB |
everything except Tests.Convenience |
about 1.9 GB |
Tests.Calculus |
1,763 MB |
So most of it comes from Tests.Convenience. On a machine with less memory, or a CI runner with a lower limit, the whole run can be killed mid-way, and vstest still prints Passed! over the tests that finished.
What I'd expect: the suite should stay well under a few GB, or the tests that need that much should say why.
Activity
Rafael-SOWNet commentedon Oct 19, 2026
Fixed by #1920 (271152e). It collects the compilations of the documented examples while
DocumentationExamplesRunTestruns. Peak resident memory of the test host, net10.0 Release, measured on one machine:DocumentationExamplesRunTestTests.ConvenienceFound by bisecting the docs test's peak. The commits before #1920 range from 2.0 to 6.1 GB from run to run, and every commit after it stays near 570 MB. Of the 2.3 GB the whole suite now peaks at,
Tests.Calculusalone peaks at 1,531 MB on master.🤖 Generated with Claude Code
https://claude.ai/code/session_012sonx8iAspMiwRwokT1Ura