11a80860ad
This is a band-aid, but it fixes the problem
until a deeper fix is in place.
Testing with genpkg -n 50000, I see:
Before:
154.67 real 184.66 user 3.15 sys
After:
61.82 real 96.99 user 2.17 sys
Fixes #14781.
Change-Id: I24c7822d60c289bdd6a18a7840b984954c95f7d4
Reviewed-on: https://go-review.googlesource.com/20696
Reviewed-by: Robert Griesemer <gri@golang.org>
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