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Simplify and batch buffer cache downloads

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This commit is contained in:
nmzik
2026-09-12 14:17:00 +04:00
parent 2d37634ee9
commit 23c8a43e37
5 changed files with 196 additions and 163 deletions
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tests/MemoryTrackerTests.cpp
+12 -6
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@@ -493,12 +493,15 @@ void TestGpuDownloadProtectionMirrors() {
"non-clearing download changed protection or lost sparse ranges");
visited.clear();
bool protected_during_download = false;
tracker.ForEachDownloadRange<true>(
address + 16, 32,
[&](uint64_t range_address, uint64_t range_size) noexcept {
protected_during_download = Protection(memory) == PAGE_NOACCESS;
visited.push_back({range_address, range_size});
});
Check(visited.size() == 1 && visited[0].first == address &&
Check(protected_during_download && visited.size() == 1 &&
visited[0].first == address &&
visited[0].second == page_size && g_protection_log.size() == 1 &&
g_protection_log[0].address == address &&
g_protection_log[0].size == page_size &&
@@ -641,11 +644,14 @@ void TestDownloadDoesNotSerializeDisjointRegion() {
std::binary_semaphore finish_download{0};
std::binary_semaphore mutation_finished{0};
std::jthread downloader([&] {
tracker.ForEachDownloadRange<false>(allocation_base, page_size,
[&](uint64_t, uint64_t) noexcept {
download_entered.release();
finish_download.acquire();
});
tracker.ForEachDownloadRange<false>(
allocation_base, second_region + page_size - allocation_base,
[&](uint64_t address, uint64_t) noexcept {
if (address == allocation_base) {
download_entered.release();
finish_download.acquire();
}
});
});
download_entered.acquire();
std::jthread mutation([&] {