Examples with PageMemory org.apache.ignite.internal.pagememory.PageMemory used on opensource projects

Example 1 with PageMemory

use of org.apache.ignite.internal.pagememory.PageMemory in project ignite-3 by apache.

the class PageMemoryNoLoadSelfTest method testLoadedPagesCount.

@Test
public void testLoadedPagesCount() throws Exception {
    PageMemory mem = memory();
    mem.start();
    int expPages = MAX_MEMORY_SIZE / mem.systemPageSize();
    try {
        for (int i = 0; i < expPages * 2; i++) {
            allocatePage(mem);
        }
    } catch (IgniteOutOfMemoryException e) {
        log.error(e.getMessage(), e);
        // Expected.
        assertEquals(mem.loadedPages(), expPages);
    } finally {
        mem.stop(true);
    }
}

Example 2 with PageMemory

use of org.apache.ignite.internal.pagememory.PageMemory in project ignite-3 by apache.

the class PageMemoryNoLoadSelfTest method testPageTearingSequential.

@Test
public void testPageTearingSequential() throws Exception {
    PageMemory mem = memory();
    mem.start();
    try {
        int pagesCnt = 1024;
        List<FullPageId> pages = new ArrayList<>(pagesCnt);
        for (int i = 0; i < pagesCnt; i++) {
            FullPageId fullId = allocatePage(mem);
            pages.add(fullId);
            long page = mem.acquirePage(fullId.groupId(), fullId.pageId());
            try {
                if (i % 64 == 0) {
                    log.info("Writing page [idx=" + i + ", pageId=" + fullId.pageId() + ", page=" + page + ']');
                }
                writePage(mem, fullId, page, i + 1);
            } finally {
                mem.releasePage(fullId.groupId(), fullId.pageId(), page);
            }
        }
        for (int i = 0; i < pagesCnt; i++) {
            FullPageId fullId = pages.get(i);
            long page = mem.acquirePage(fullId.groupId(), fullId.pageId());
            try {
                if (i % 64 == 0) {
                    log.info("Reading page [idx=" + i + ", pageId=" + fullId.pageId() + ", page=" + page + ']');
                }
                readPage(mem, fullId.pageId(), page, i + 1);
            } finally {
                mem.releasePage(fullId.groupId(), fullId.pageId(), page);
            }
        }
    } finally {
        mem.stop(true);
    }
}

Example 3 with PageMemory

use of org.apache.ignite.internal.pagememory.PageMemory in project ignite-3 by apache.

the class PageMemoryNoLoadSelfTest method memory.

/**
 * Creates new page memory instance.
 *
 * @return Page memory implementation.
 * @throws Exception If failed.
 */
protected PageMemory memory() throws Exception {
    dataRegionCfg.change(cfg -> cfg.convert(PageMemoryDataRegionChange.class).changePageSize(PAGE_SIZE).changeInitSize(MAX_MEMORY_SIZE).changeMaxSize(MAX_MEMORY_SIZE)).get(1, SECONDS);
    DirectMemoryProvider provider = new UnsafeMemoryProvider(null);
    PageIoRegistry ioRegistry = new PageIoRegistry();
    ioRegistry.loadFromServiceLoader();
    return new PageMemoryNoStoreImpl(provider, (PageMemoryDataRegionConfiguration) fixConfiguration(dataRegionCfg), ioRegistry);
}

Example 4 with PageMemory

use of org.apache.ignite.internal.pagememory.PageMemory in project ignite-3 by apache.

the class PageMemoryNoLoadSelfTest method testPageTearingInner.

@Test
public void testPageTearingInner() throws Exception {
    PageMemory mem = memory();
    mem.start();
    try {
        FullPageId fullId1 = allocatePage(mem);
        FullPageId fullId2 = allocatePage(mem);
        long page1 = mem.acquirePage(fullId1.groupId(), fullId1.pageId());
        try {
            long page2 = mem.acquirePage(fullId2.groupId(), fullId2.pageId());
            log.info("Allocated pages [page1Id=" + fullId1.pageId() + ", page1=" + page1 + ", page2Id=" + fullId2.pageId() + ", page2=" + page2 + ']');
            try {
                writePage(mem, fullId1, page1, 1);
                writePage(mem, fullId2, page2, 2);
                readPage(mem, fullId1.pageId(), page1, 1);
                readPage(mem, fullId2.pageId(), page2, 2);
                // Check read after read.
                readPage(mem, fullId1.pageId(), page1, 1);
                readPage(mem, fullId2.pageId(), page2, 2);
            } finally {
                mem.releasePage(fullId2.groupId(), fullId2.pageId(), page2);
            }
        } finally {
            mem.releasePage(fullId1.groupId(), fullId1.pageId(), page1);
        }
    } finally {
        mem.stop(true);
    }
}

Example 5 with PageMemory

use of org.apache.ignite.internal.pagememory.PageMemory in project ignite-3 by apache.

the class AbstractFreeListTest method createPageMemory.

private PageMemory createPageMemory(int pageSize) throws Exception {
    dataRegionCfg.change(c -> c.convert(PageMemoryDataRegionChange.class).changePageSize(pageSize).changeInitSize(MAX_SIZE).changeMaxSize(MAX_SIZE)).get(1, TimeUnit.SECONDS);
    TestPageIoRegistry ioRegistry = new TestPageIoRegistry();
    ioRegistry.loadFromServiceLoader();
    ioRegistry.load(TestDataPageIo.VERSIONS);
    return new PageMemoryNoStoreImpl(new UnsafeMemoryProvider(null), (PageMemoryDataRegionConfiguration) fixConfiguration(dataRegionCfg), ioRegistry);
}