Speed up memory page mapping (#2141)
- Memory::MapPages total samplecount was reduced from 4.6% to 1.06%. - From main menu into the game from 1.03% to 0.35%
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@ -71,15 +71,20 @@ static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, Pa
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FlushMode::FlushAndInvalidate);
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VAddr end = base + size;
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while (base != end) {
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ASSERT_MSG(base < page_table.pointers.size(), "out of range mapping at {:016X}", base);
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ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}",
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base + page_table.pointers.size());
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page_table.attributes[base] = type;
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page_table.pointers[base] = memory;
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std::fill(page_table.attributes.begin() + base, page_table.attributes.begin() + end, type);
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base += 1;
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if (memory != nullptr)
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if (memory == nullptr) {
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std::fill(page_table.pointers.begin() + base, page_table.pointers.begin() + end, memory);
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} else {
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while (base != end) {
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page_table.pointers[base] = memory;
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base += 1;
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memory += PAGE_SIZE;
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}
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}
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}
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