Commit 68a5baeb5ba08575c2a3a6e31a0bd8eb4b39d4de
2020-09-23T22:13:03
Revert "Vulkan: Implement a SharedResourceUse pool" This reverts commit de335c16855f11d1f0a6f0b37bee30c8a09a6c1d. Reason for revert: Might actually regress CPU overhead perf. Unsure but it's possible the reported perf improvement was due to variance. Original change's description: > Vulkan: Implement a SharedResourceUse pool > > When adding a Resource to the ResourceUseList of ContextVk > we constructed a new SharedResourceUse object for tracking > and update of the Resource's Serial. We would then delete > it after releasing the resource. This incurs repeated > memory operation costs. > > Instead we now allocate a pool of SharedResourceUse objects > and acquire and release from this pool as needed. > > VTune profile of the Manhattan 30 offscreen benchmark > shows the CPU occupancy of bufferRead decrease from an > average of 0.9% -> 0.6% and imageRead decreases from > an average of 0.4% -> 0.3%. The bottleneck for both > these methods is the retain() method that leverages > the new SharedResourceUse pool. > > Bug: angleproject:4950 > Change-Id: Ib4f67c6f101d4b2de118014546e6cc14ad108703 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2396597 > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> > Reviewed-by: Jamie Madill <jmadill@chromium.org> > Commit-Queue: Mohan Maiya <m.maiya@samsung.com> TBR=syoussefi@chromium.org,jmadill@chromium.org,m.maiya@samsung.com # Not skipping CQ checks because original CL landed > 1 day ago. Bug: angleproject:4950 Change-Id: I40081551c3db67d6e55182fea40119946ed16ac3 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2426479 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>