Examples with Rnd io.questdb.std.Rnd used on opensource projects

Example 51 with Rnd

use of io.questdb.std.Rnd in project questdb by bluestreak01.

the class AbstractCairoTest method setUp.

@Before
public void setUp() {
    SharedRandom.RANDOM.set(new Rnd());
    LOG.info().$("Starting test ").$(getClass().getSimpleName()).$('#').$(testName.getMethodName()).$();
    TestUtils.createTestPath(root);
    engine.openTableId();
    engine.resetTableId();
    SharedRandom.RANDOM.set(new Rnd());
}

Example 52 with Rnd

use of io.questdb.std.Rnd in project questdb by bluestreak01.

the class BitmapIndexFwdNullReaderTest method testCursor.

@Test
public void testCursor() {
    final Rnd rnd = new Rnd();
    for (int i = 0; i < 10; i++) {
        int n = rnd.nextPositiveInt() % 1024;
        int m = 0;
        RowCursor cursor = reader.getCursor(true, 0, 0, n);
        while (cursor.hasNext()) {
            Assert.assertEquals(m++, cursor.next());
        }
        Assert.assertEquals(n + 1, m);
    }
}

Example 53 with Rnd

use of io.questdb.std.Rnd in project questdb by bluestreak01.

the class GeoHashesAppendCharBenchmark method appendChar2.

@Benchmark
public void appendChar2() throws NumericException {
    Rnd rnd = new Rnd();
    long geohash = 0;
    for (int j = 0, m = 12; j < m; j++) {
        geohash = appendChar2(geohash, rnd_geochar(rnd));
    }
    if (geohash != 592262567632380556L) {
        throw new AssertionError();
    }
}

Example 54 with Rnd

use of io.questdb.std.Rnd in project questdb by bluestreak01.

the class GeoHashesSwitchOnIntVsCharBenchmark method isValidBits0.

@Benchmark
public static void isValidBits0() {
    Rnd rnd = new Rnd();
    StringSink sink = Misc.getThreadLocalBuilder();
    for (int j = 0, m = 10_000_000; j < m; j++) {
        if (!isValidBits0(rnd_geobits(rnd, sink), 0)) {
            throw new AssertionError();
        }
    }
}

Example 55 with Rnd

use of io.questdb.std.Rnd in project questdb by bluestreak01.

the class LineTCPSenderMainVarLenStrings method main.

public static void main(String[] args) {
    final long count = 2_000_000_000L;
    String hostIPv4 = "127.0.0.1";
    int port = 9009;
    int bufferCapacity = 64;
    final Rnd rnd = new Rnd();
    long start = System.nanoTime();
    FilesFacade ff = new FilesFacadeImpl();
    try (Path path = new Path()) {
        long logFd = -1;
        if (args.length == 1) {
            path.put(args[0]).$();
            logFd = ff.openRW(path);
        }
        try (LineTcpSender sender = new LoggingLineTcpSender(Net.parseIPv4(hostIPv4), port, bufferCapacity, logFd, ff)) {
            for (int i = 0; i < count; i++) {
                sender.metric("md_msgs");
                sender.field("ts_nsec", rnd.nextPositiveLong()).field("pkt_size", rnd.nextPositiveInt()).field("pcap_file", nextString(rnd.nextPositiveInt() % 64, rnd)).field("raw_msg", nextString(rnd.nextPositiveInt() % 512, rnd)).field("Length", rnd.nextInt()).field("MsgSeqNum", i).field("MsgType", rnd.nextInt() % 1000).field("src_ip", rnd.nextString(rnd.nextPositiveInt() % 16)).field("dst_ip", rnd.nextString(rnd.nextPositiveInt() % 16)).field("src_port", rnd.nextInt() % 10000).field("dst_port", rnd.nextInt() % 10000).field("first_dir", rnd.nextBoolean()).$(i * 10_000_000L);
            }
            sender.flush();
        } finally {
            if (logFd > 0) {
                ff.close(logFd);
            }
        }
    }
    System.out.println("Actual rate: " + (count * 1_000_000_000L / (System.nanoTime() - start)));
}