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Diffstat (limited to 'lttng/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/synthetictraces/LttngKernelTraceGenerator.java')
-rw-r--r--lttng/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/synthetictraces/LttngKernelTraceGenerator.java476
1 files changed, 0 insertions, 476 deletions
diff --git a/lttng/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/synthetictraces/LttngKernelTraceGenerator.java b/lttng/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/synthetictraces/LttngKernelTraceGenerator.java
deleted file mode 100644
index 07d3ecab17..0000000000
--- a/lttng/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/synthetictraces/LttngKernelTraceGenerator.java
+++ /dev/null
@@ -1,476 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2013, 2014 Ericsson
- *
- * All rights reserved. This program and the accompanying materials are
- * made available under the terms of the Eclipse Public License v1.0 which
- * accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Matthew Khouzam - Initial API and implementation
- * Marc-Andre Laperle - Move generation to traces folder
- *******************************************************************************/
-
-package org.eclipse.linuxtools.ctf.core.tests.synthetictraces;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.net.URL;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.channels.FileChannel;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Random;
-
-import org.eclipse.core.runtime.FileLocator;
-import org.eclipse.core.runtime.IPath;
-import org.eclipse.core.runtime.Path;
-import org.eclipse.linuxtools.ctf.core.tests.CtfCoreTestPlugin;
-
-/**
- * Generate a kernel trace
- *
- * @author Matthew Khouzam
- */
-public class LttngKernelTraceGenerator {
-
- private static final String metadata = "/* CTF 1.8 */ \n" +
- "typealias integer { size = 8; align = 8; signed = false; } := uint8_t;\n" +
- "typealias integer { size = 16; align = 8; signed = false; } := uint16_t;\n" +
- "typealias integer { size = 32; align = 8; signed = false; } := uint32_t;\n" +
- "typealias integer { size = 64; align = 8; signed = false; } := uint64_t;\n" +
- "typealias integer { size = 32; align = 8; signed = false; } := unsigned long;\n" +
- "typealias integer { size = 5; align = 1; signed = false; } := uint5_t;\n" +
- "typealias integer { size = 27; align = 1; signed = false; } := uint27_t;\n" +
- "\n" +
- "trace {\n" +
- " major = 1;\n" +
- " minor = 8;\n" +
- " uuid = \"11111111-1111-1111-1111-111111111111\";\n" +
- " byte_order = le;\n" +
- " packet.header := struct {\n" +
- " uint32_t magic;\n" +
- " uint8_t uuid[16];\n" +
- " uint32_t stream_id;\n" +
- " };\n" +
- "};\n" +
- "\n" +
- "env {\n" +
- " hostname = \"synthetic-host\";\n" +
- " domain = \"kernel\";\n" +
- " sysname = \"FakeLinux\";\n" +
- " kernel_release = \"1.0\";\n" +
- " kernel_version = \"Fake Os Synthetic Trace\";\n" +
- " tracer_name = \"lttng-modules\";\n" +
- " tracer_major = 2;\n" +
- " tracer_minor = 1;\n" +
- " tracer_patchlevel = 0;\n" +
- "};\n" +
- "\n" +
- "clock {\n" +
- " name = monotonic;\n" +
- " uuid = \"bbff68f0-c633-4ea1-92cd-bd11024ec4de\";\n" +
- " description = \"Monotonic Clock\";\n" +
- " freq = 1000000000; /* Frequency, in Hz */\n" +
- " /* clock value offset from Epoch is: offset * (1/freq) */\n" +
- " offset = 1368000272650993664;\n" +
- "};\n" +
- "\n" +
- "typealias integer {\n" +
- " size = 27; align = 1; signed = false;\n" +
- " map = clock.monotonic.value;\n" +
- "} := uint27_clock_monotonic_t;\n" +
- "\n" +
- "typealias integer {\n" +
- " size = 32; align = 8; signed = false;\n" +
- " map = clock.monotonic.value;\n" +
- "} := uint32_clock_monotonic_t;\n" +
- "\n" +
- "typealias integer {\n" +
- " size = 64; align = 8; signed = false;\n" +
- " map = clock.monotonic.value;\n" +
- "} := uint64_clock_monotonic_t;\n" +
- "\n" +
- "struct packet_context {\n" +
- " uint64_clock_monotonic_t timestamp_begin;\n" +
- " uint64_clock_monotonic_t timestamp_end;\n" +
- " uint64_t content_size;\n" +
- " uint64_t packet_size;\n" +
- " unsigned long events_discarded;\n" +
- " uint32_t cpu_id;\n" +
- "};\n" +
- "\n" +
- "struct event_header_compact {\n" +
- " enum : uint5_t { compact = 0 ... 30, extended = 31 } id;\n" +
- " variant <id> {\n" +
- " struct {\n" +
- " uint27_clock_monotonic_t timestamp;\n" +
- " } compact;\n" +
- " struct {\n" +
- " uint32_t id;\n" +
- " uint64_clock_monotonic_t timestamp;\n" +
- " } extended;\n" +
- " } v;\n" +
- "} align(8);\n" +
- "\n" +
- "struct event_header_large {\n" +
- " enum : uint16_t { compact = 0 ... 65534, extended = 65535 } id;\n" +
- " variant <id> {\n" +
- " struct {\n" +
- " uint32_clock_monotonic_t timestamp;\n" +
- " } compact;\n" +
- " struct {\n" +
- " uint32_t id;\n" +
- " uint64_clock_monotonic_t timestamp;\n" +
- " } extended;\n" +
- " } v;\n" +
- "} align(8);\n" +
- "\n" +
- "stream {\n" +
- " id = 0;\n" +
- " event.header := struct event_header_compact;\n" +
- " packet.context := struct packet_context;\n" +
- "};\n" +
- "\n" +
- "event {\n" +
- " name = sched_switch;\n" +
- " id = 0;\n" +
- " stream_id = 0;\n" +
- " fields := struct {\n" +
- " integer { size = 8; align = 8; signed = 1; encoding = UTF8; base = 10; } _prev_comm[16];\n" +
- " integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; } _prev_tid;\n" +
- " integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; } _prev_prio;\n" +
- " integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; } _prev_state;\n" +
- " integer { size = 8; align = 8; signed = 1; encoding = UTF8; base = 10; } _next_comm[16];\n" +
- " integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; } _next_tid;\n" +
- " integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; } _next_prio;\n" +
- " };\n" +
- "};\n" +
- "\n";
-
- private final List<String> fProcesses;
- private final long fDuration;
- private final long fNbEvents;
- private final int fNbChans;
-
- private static final String[] sfProcesses = {
- "IDLE",
- "gnuplot",
- "starcraft 2:pt3",
- "bash",
- "smash",
- "thrash",
- "fireball",
- "Half-life 3",
- "ST: The game"
- };
-
-
- private static final String TRACES_DIRECTORY = "traces";
- private static final String TRACE_NAME = "synthetic-trace";
-
- /**
- * Main, not always needed
- *
- * @param args
- * args
- */
- public static void main(String[] args) {
- // not using createTempFile as this is a directory
- String path = CtfCoreTestPlugin.getTemporaryDirPath() + File.separator + TRACE_NAME;
- generateLttngKernelTrace(new File(path));
- }
-
- /**
- * Gets the name of the trace (top directory name)
- *
- * @return the name of the trace
- */
- public static String getName() {
- return TRACE_NAME;
- }
-
- /**
- * Get the path
- *
- * @return the path
- */
- public static String getPath() {
- CtfCoreTestPlugin plugin = CtfCoreTestPlugin.getDefault();
- if (plugin == null) {
- return null;
- }
- URL location = FileLocator.find(plugin.getBundle(), new Path(TRACES_DIRECTORY), null);
- File file = null;
- try {
- IPath path = new Path(FileLocator.toFileURL(location).getPath()).append(TRACE_NAME);
- file = path.toFile();
- } catch (IOException e) {
- // Shouldn't happen but at least throw something to get the test to fail early
- throw new IllegalStateException();
- }
-
- if (!file.exists()) {
- generateLttngKernelTrace(file);
- }
- return file.getAbsolutePath();
- }
-
- /**
- * Generate a trace
- *
- * @param file
- * the file to write the trace to
- */
- public static void generateLttngKernelTrace(File file) {
- final int cpus = 25;
- LttngKernelTraceGenerator gt = new LttngKernelTraceGenerator(2l * Integer.MAX_VALUE - 100, 500000, cpus);
- gt.writeTrace(file);
- }
-
- /**
- * Make a kernel trace
- *
- * @param duration
- * the duration of the trace
- * @param events
- * the number of events in a trace
- * @param nbChannels
- * the number of channels in the trace
- */
- public LttngKernelTraceGenerator(long duration, long events, int nbChannels) {
- fProcesses = Arrays.asList(sfProcesses);
- fDuration = duration;
- fNbEvents = events;
- fNbChans = nbChannels;
- }
-
- /**
- * Write the trace to a file
- *
- * @param file
- * the file to write the trace to
- */
- public void writeTrace(File file) {
-
- if (!file.exists()) {
- file.mkdir();
- } else {
- if (file.isFile()) {
- file.delete();
- file.mkdir();
- } else {
- // the ctf parser doesn't recurse, so we don't need to.
- final File[] listFiles = file.listFiles();
- for (File child : listFiles) {
- child.delete();
- }
- }
- }
-
- File metadataFile = new File(file.getPath() + File.separator + "metadata");
- File[] streams = new File[fNbChans];
- FileChannel[] channels = new FileChannel[fNbChans];
-
- try {
- for (int i = 0; i < fNbChans; i++) {
- streams[i] = new File(file.getPath() + File.separator + "channel" + i);
- channels[i] = new FileOutputStream(streams[i]).getChannel();
- }
- } catch (FileNotFoundException e) {
- }
- // determine the number of events per channel
- long evPerChan = fNbEvents / fNbChans;
- int delta = (int) (fDuration / evPerChan);
- int offsetTime = 0;
- for (int chan = 0; chan < fNbChans; chan++) {
- int currentSpace = 0;
- ByteBuffer bb = ByteBuffer.allocate(65536);
- bb.order(ByteOrder.LITTLE_ENDIAN);
- Random rnd = new Random(1337);
- int rnd0 = rnd.nextInt(fProcesses.size());
- String prevComm = fProcesses.get(rnd0);
- int prevPID = rnd0 + chan * fProcesses.size();
- if (rnd0 == 0) {
- prevPID = 0;
- }
- int prevPrio = 0;
- int prevPos = -1;
- for (int eventNb = 0; eventNb < evPerChan; eventNb++) {
- int ts = eventNb * delta + delta / (fNbChans + 1) * chan;
-
- int pos = rnd.nextInt((int) (fProcesses.size() * 1.5));
- if (pos >= fProcesses.size()) {
- pos = 0;
- }
- while (pos == prevPos) {
- pos = rnd.nextInt((int) (fProcesses.size() * 1.5));
- if (pos >= fProcesses.size()) {
- pos = 0;
- }
- }
- String nextComm = fProcesses.get(pos);
- int nextPID = pos + fProcesses.size() * chan;
- if (pos == 0) {
- nextPID = 0;
- }
- int nextPrio = 0;
- if (EventWriter.SIZE > currentSpace) {
- // pad to end
- for (int i = 0; i < currentSpace; i++) {
- bb.put((byte) 0x00);
- }
- // write new packet
- PacketWriter pw = new PacketWriter(bb);
- int tsBegin = ts;
- offsetTime = ts;
- int tsEnd = (eventNb + (PacketWriter.SIZE / EventWriter.SIZE)) * delta + 1;
- pw.writeNewHeader(tsBegin, tsEnd, chan);
- currentSpace = PacketWriter.CONTENT_SIZE;
- }
- EventWriter ew = new EventWriter(bb);
- int prev_state = rnd.nextInt(100);
- if (prev_state != 0) {
- prev_state = 1;
- }
- final int shrunkenTimestamp = ts - offsetTime;
- final int tsMask = (1 << 27) - 1;
- if (shrunkenTimestamp > ((1 << 27) + tsMask)) {
- new Object();
- System.err.println("PROBLEM");
- }
- final int clampedTs = ts & tsMask;
- int evSize = ew.writeEvent(clampedTs, prevComm, prevPID, prevPrio, prev_state, nextComm, nextPID, nextPrio);
- currentSpace -= evSize;
- prevComm = nextComm;
- prevPID = nextPID;
- prevPrio = nextPrio;
- if (bb.position() > 63000) {
- writeToDisk(channels, chan, bb);
- }
- }
- for (int i = 0; i < currentSpace; i++) {
- bb.put((byte) 0x00);
- }
- writeToDisk(channels, chan, bb);
- try {
- channels[chan].close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- try (FileOutputStream fos = new FileOutputStream(metadataFile);) {
- fos.write(metadata.getBytes());
- } catch (IOException e) {
- }
- }
-
- private static void writeToDisk(FileChannel[] channels, int chan, ByteBuffer bb) {
- try {
- bb.flip();
- channels[chan].write(bb);
- bb.clear();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
-
- private class EventWriter {
- public static final int SIZE =
- 4 + // timestamp
- 16 + // prev_comm
- 4 + // prev_tid
- 4 + // prev_prio
- 4 + // prev_state
- 16 + // current_comm
- 4 + // next_tid
- 4; // next_prio
- private final ByteBuffer data;
-
- public EventWriter(ByteBuffer bb) {
- data = bb;
- }
-
- public int writeEvent(int ts, String prev_comm, int prev_tid, int prev_prio, int prev_state, String next_comm, int next_tid, int next_prio) {
- byte[] bOut = new byte[16];
- byte[] bIn = new byte[16];
- byte[] temp = prev_comm.getBytes();
- for (int i = 0; i < Math.min(temp.length, 16); i++) {
- bOut[i] = temp[i];
- }
- temp = next_comm.getBytes();
- for (int i = 0; i < Math.min(temp.length, 16); i++) {
- bIn[i] = temp[i];
- }
-
- int timestamp = ts << 5;
-
- data.putInt(timestamp);
- data.put(bOut);
- data.putInt(prev_tid);
- data.putInt(prev_prio);
- data.putInt(prev_state);
- data.put(bIn);
- data.putInt(next_tid);
- data.putInt(next_prio);
- return SIZE;
- }
-
- }
-
- private class PacketWriter {
- private static final int SIZE = 4096;
- private static final int HEADER_SIZE = 64;
- private static final int CONTENT_SIZE = SIZE - HEADER_SIZE;
-
- private final ByteBuffer data;
-
- public PacketWriter(ByteBuffer bb) {
- data = bb;
- }
-
- public void writeNewHeader(int tsBegin, int tsEnd, int cpu) {
- final int magicLE = 0xC1FC1FC1;
- byte uuid[] = {
- 0x11, 0x11, 0x11, 0x11,
- 0x11, 0x11, 0x11, 0x11,
- 0x11, 0x11, 0x11, 0x11,
- 0x11, 0x11, 0x11, 0x11 };
- // packet header
-
- // magic number 4
- data.putInt(magicLE);
- // uuid 16
- data.put(uuid);
- // stream ID 4
- data.putInt(0);
-
- // packet context
- // timestamp_begin 8
- data.putLong(tsBegin);
-
- // timestamp_end 8
- data.putLong(tsEnd);
-
- // content_size 8
- data.putLong((CONTENT_SIZE / EventWriter.SIZE * EventWriter.SIZE + HEADER_SIZE) * 8);
-
- // packet_size 8
- data.putLong((SIZE) * 8);
-
- // events_discarded 4
- data.putInt(0);
-
- // cpu_id 4
- data.putInt(cpu);
-
- }
-
- }
-
-
-
-}

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