Revert "Avoid loop-dependent behavior in GrMemoryPoolBench"
This reverts commit f811fc331a143631f3ba48a266336ccf18d5a459.
Reason for revert: breaks on iOS
Original change's description:
> Avoid loop-dependent behavior in GrMemoryPoolBench
>
> This helps stability of benchmark across repeated runs, and across code
> changes. Previously, a change to the tuned loop count could radically
> change the allocation behavior within the loop's iteration and lead to
> unfair comparisons.
>
> In addition, this separates the stack allocation pattern into N allocations
> followed by N LIFO releases, and a push-pop alternating pattern of N
> allocates and releases (so still LIFO, but reuses the memory at the start
> of a block).
>
> In later CLs experimenting on the memory pool, I found that there were
> surprising effects on performance linked to the specific interaction between
> the allocation size, per-allocation metadata, and per-block metadata. To
> help differentiate these coincidences, this adds two modes of allocation
> where one should already be aligned.
>
> It also moves away from a global pool, so that it's possible to benchmark
> on different block sizes and factor in the allocation/release cost of the
> actual blocks (vs. the cursor management of a larger sized pool). As part
> of this, the new/delete reference operator is added as an explicit benchmark.
>
> Change-Id: I12b8c11cb75db0df70460fe2e8cf6c029db7eb22
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/262936
> Commit-Queue: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
TBR=bsalomon@google.com,michaelludwig@google.com
Change-Id: I16f2810699a378eb5a516ab9fb1834c10b65f01b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263029
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
1 file changed