internal/trace/v2: halve the memory footprint of TestGCStress

This test has been OOMing on 32-bit platforms for a bit. I suspect the
very high allocation rate is causing the program to outrun the GC in
some corner-case scenarios, especially on 32-bit Windows.

I don't have a strong grasp of what's going on yet, but lowering the
memory footprint should help with the flakiness. This shouldn't
represent a loss in test coverage, since we're still allocating and
assisting plenty (tracing the latter is a strong reason this test
exists).

For #66624.

Change-Id: Idd832cfc5cde04701386919df4490f201c71130a
Reviewed-on: https://go-review.googlesource.com/c/go/+/577475
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
1 file changed
tree: b64ad4e2d25405c68e4385bd9ec24d37d89c5228
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. go.env
  13. LICENSE
  14. PATENTS
  15. README.md
  16. SECURITY.md
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