7fbd141de5
Turns out we spend a few percent of the trace event writing path in just zero-initializing the stack space for pcBuf. We don't need zero initialization, since we're going to write over whatever we actually use. Use m.profStack instead, which is already sized correctly. A side-effect of this change is that trace stacks now obey the GODEBUG profstackdepth where they previously ignored it. The name clearly doesn't match, but this is a positive: there's no reason the maximum stack depth shouldn't apply to every diagnostic. Change-Id: Ia654d3d708f15cbb2e1d95af196ae10b07a65df2 Reviewed-on: https://go-review.googlesource.com/c/go/+/723062 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Auto-Submit: Michael Knyszek <mknyszek@google.com> |
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The Go Programming Language
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