|author||Austin Clements <email@example.com>||Mon Apr 03 15:47:11 2017 -0400|
|committer||Austin Clements <firstname.lastname@example.org>||Fri Apr 21 17:41:59 2017 +0000|
runtime: make gcSetTriggerRatio work at any time This changes gcSetTriggerRatio so it can be called even during concurrent mark or sweep. In this case, it will adjust the pacing of the current phase, accounting for progress that has already been made. To make this work for concurrent sweep, this introduces a "basis" for the pagesSwept count, much like the basis we just introduced for heap_live. This lets gcSetTriggerRatio shift the basis to the current heap_live and pagesSwept and compute a slope from there to completion. This avoids creating a discontinuity where, if the ratio has increased, there has to be a flurry of sweep activity to catch up. Instead, this creates a continuous, piece-wise linear function as adjustments are made. For #19076. Change-Id: Ibcd76aeeb81ff4814b00be7cbd3530b73bbdbba9 Reviewed-on: https://go-review.googlesource.com/39833 Run-TryBot: Austin Clements <email@example.com> TryBot-Result: Gobot Gobot <firstname.lastname@example.org> Reviewed-by: Rick Hudson <email@example.com>
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