public override MuninnPageCache CreatePageCache(PageSwapperFactory swapperFactory, int maxPages, PageCacheTracer tracer, PageCursorTracerSupplier cursorTracerSupplier, VersionContextSupplier contextSupplier, JobScheduler jobScheduler)
{
long memory = MuninnPageCache.MemoryRequiredForPages(maxPages);
_allocator = MemoryAllocator.createAllocator(memory.ToString(), new LocalMemoryTracker());
return(new MuninnPageCache(swapperFactory, _allocator, tracer, cursorTracerSupplier, contextSupplier, jobScheduler));
}
public static PageCache CreatePageCache(FileSystemAbstraction fileSystem, JobScheduler jobScheduler)
{
SingleFilePageSwapperFactory factory = new SingleFilePageSwapperFactory();
factory.Open(fileSystem, Configuration.EMPTY);
PageCacheTracer cacheTracer = PageCacheTracer.NULL;
DefaultPageCursorTracerSupplier cursorTracerSupplier = DefaultPageCursorTracerSupplier.INSTANCE;
VersionContextSupplier versionContextSupplier = EmptyVersionContextSupplier.EMPTY;
MemoryAllocator memoryAllocator = MemoryAllocator.createAllocator("8 MiB", GlobalMemoryTracker.INSTANCE);
return(new MuninnPageCache(factory, memoryAllocator, cacheTracer, cursorTracerSupplier, versionContextSupplier, jobScheduler));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void veryLargePageListsMustBeFullyAccessible()
internal virtual void VeryLargePageListsMustBeFullyAccessible()
{
// We need roughly 2 GiBs of memory for the meta-data here, which is why this is an IT and not a Test.
// We add one extra page worth of data to the size here, to avoid ending up on a "convenient" boundary.
int pageSize = ( int )ByteUnit.kibiBytes(8);
long pageCacheSize = ByteUnit.gibiBytes(513) + pageSize;
int pages = Math.toIntExact(pageCacheSize / pageSize);
MemoryAllocator mman = MemoryAllocator.createAllocator("2 GiB", GlobalMemoryTracker.INSTANCE);
SwapperSet swappers = new SwapperSet();
long victimPage = VictimPageReference.GetVictimPage(pageSize, GlobalMemoryTracker.INSTANCE);
PageList pageList = new PageList(pages, pageSize, mman, swappers, victimPage, Long.BYTES);
// Verify we end up with the correct number of pages.
assertThat(pageList.PageCount, @is(pages));
// Spot-check the accessibility in the bulk of the pages.
IntStream.range(0, pages / 32).parallel().forEach(id => verifyPageMetaDataIsAccessible(pageList, id * 32));
// Thoroughly check the accessibility around the tail end of the page list.
IntStream.range(pages - 2000, pages).parallel().forEach(id => verifyPageMetaDataIsAccessible(pageList, id));
}