Examples with SingleFilePageSwapperFactory org.neo4j.io.pagecache.impl.SingleFilePageSwapperFactory used on opensource projects

Example 6 with SingleFilePageSwapperFactory

use of org.neo4j.io.pagecache.impl.SingleFilePageSwapperFactory in project neo4j by neo4j.

the class PageCacheStressTest method run.

public void run() throws Exception {
    try (FileSystemAbstraction fs = new DefaultFileSystemAbstraction()) {
        PageSwapperFactory swapperFactory = new SingleFilePageSwapperFactory();
        swapperFactory.setFileSystemAbstraction(fs);
        try (PageCache pageCacheUnderTest = new MuninnPageCache(swapperFactory, numberOfCachePages, cachePageSize, tracer, pageCursorTracerSupplier)) {
            PageCacheStresser pageCacheStresser = new PageCacheStresser(numberOfPages, numberOfThreads, workingDirectory);
            pageCacheStresser.stress(pageCacheUnderTest, condition);
        }
    }
}

Example 7 with SingleFilePageSwapperFactory

use of org.neo4j.io.pagecache.impl.SingleFilePageSwapperFactory in project neo4j by neo4j.

the class ConfiguringPageCacheFactory method createAndConfigureSwapperFactory.

private PageSwapperFactory createAndConfigureSwapperFactory(FileSystemAbstraction fs, Config config, Log log) {
    String desiredImplementation = config.get(pagecache_swapper);
    if (desiredImplementation != null) {
        for (PageSwapperFactory factory : Service.load(PageSwapperFactory.class)) {
            if (factory.implementationName().equals(desiredImplementation)) {
                factory.setFileSystemAbstraction(fs);
                if (factory instanceof ConfigurablePageSwapperFactory) {
                    ConfigurablePageSwapperFactory configurableFactory = (ConfigurablePageSwapperFactory) factory;
                    configurableFactory.configure(config);
                }
                log.info("Configured " + pagecache_swapper.name() + ": " + desiredImplementation);
                return factory;
            }
        }
        throw new IllegalArgumentException("Cannot find PageSwapperFactory: " + desiredImplementation);
    }
    SingleFilePageSwapperFactory factory = new SingleFilePageSwapperFactory();
    factory.setFileSystemAbstraction(fs);
    return factory;
}

Example 8 with SingleFilePageSwapperFactory

use of org.neo4j.io.pagecache.impl.SingleFilePageSwapperFactory in project neo4j by neo4j.

the class PageCacheTest method factoryCountingSyncDevice.

private PageSwapperFactory factoryCountingSyncDevice(final AtomicInteger syncDeviceCounter, final Queue<Integer> expectedCountsInForce) {
    SingleFilePageSwapperFactory factory = new SingleFilePageSwapperFactory() {

        @Override
        public void syncDevice() {
            super.syncDevice();
            syncDeviceCounter.getAndIncrement();
        }

        @Override
        public PageSwapper createPageSwapper(File file, int filePageSize, PageEvictionCallback onEviction, boolean createIfNotExist) throws IOException {
            PageSwapper delegate = super.createPageSwapper(file, filePageSize, onEviction, createIfNotExist);
            return new DelegatingPageSwapper(delegate) {

                @Override
                public void force() throws IOException {
                    super.force();
                    assertThat(syncDeviceCounter.get(), is(expectedCountsInForce.poll()));
                }
            };
        }
    };
    factory.setFileSystemAbstraction(fs);
    return factory;
}