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buffer_cache: Reduce stream buffer allocations when expanding from the left

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The existing stream buffer optimization accounts for size increases at the end of the allocated buffer.
This adds the same optimization, increasing the size from the beginning of the buffer as well to reduce buffer allocations when expanding the same buffer from the left.
This commit is contained in:
ameerj 2022-01-27 15:31:43 -05:00
parent 8a244dd3d3
commit f300a1d54b
1 changed files with 2 additions and 0 deletions
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src/video_core/buffer_cache/buffer_cache.h
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@ -1474,6 +1474,8 @@ typename BufferCache<P>::OverlapResult BufferCache<P>::ResolveOverlaps(VAddr cpu
// When this memory region has been joined a bunch of times, we assume it's being used // When this memory region has been joined a bunch of times, we assume it's being used
// as a stream buffer. Increase the size to skip constantly recreating buffers. // as a stream buffer. Increase the size to skip constantly recreating buffers.
has_stream_leap = true; has_stream_leap = true;
begin -= PAGE_SIZE * 256;
cpu_addr = begin;
end += PAGE_SIZE * 256; end += PAGE_SIZE * 256;
} }
} }