| commit | 13aff7831d32c80b98ede611f1ffb0476f16ec51 | [log] [tgz] |
|---|---|---|
| author | Rick Hudson <rlh@golang.org> | Mon Jan 26 13:51:39 2015 -0500 |
| committer | Rick Hudson <rlh@golang.org> | Wed Jan 28 20:05:55 2015 +0000 |
| tree | 1d1e834da6c48bf3f2e2e94469104313537355ba | |
| parent | 8332f807853d9aa47c7aa04bf3501eae88180170 [diff] |
runtime: avoid redundant scans During a concurrent GC stacks are scanned in an initial scan phase informing the GC of all pointers on the stack. The GC only needs to rescan the stack if it potentially changes which can only happen if the goroutine runs. This CL tracks whether the Goroutine has run since it was last scanned and thus may have changed its stack. If necessary the stack is rescanned. Change-Id: I5fb1c4338d42e3f61ab56c9beb63b7b2da25f4f1 Reviewed-on: https://go-review.googlesource.com/3275 Reviewed-by: Russ Cox <rsc@golang.org>
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