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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> |
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| animations | ||
| bench | ||
| bin | ||
| build/fuchsia | ||
| build_overrides | ||
| dm | ||
| docker | ||
| docs/examples | ||
| example | ||
| experimental | ||
| fuzz | ||
| gm | ||
| gn | ||
| include | ||
| infra | ||
| modules | ||
| platform_tools | ||
| resources | ||
| samplecode | ||
| site | ||
| specs | ||
| src | ||
| tests | ||
| third_party | ||
| tools | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| .gn | ||
| AUTHORS | ||
| BUILD.gn | ||
| codereview.settings | ||
| CONTRIBUTING | ||
| CQ_COMMITTERS | ||
| DEPS | ||
| go.mod | ||
| go.sum | ||
| LICENSE | ||
| OWNERS | ||
| PRESUBMIT.py | ||
| public.bzl | ||
| README | ||
| README.chromium | ||
| RELEASE_NOTES.txt | ||
| whitespace.txt | ||
Skia is a complete 2D graphic library for drawing Text, Geometries, and Images. See full details, and build instructions, at https://skia.org.