use of com.sk89q.worldguard.util.profiler.ThreadIdFilter in project WorldGuard by EngineHub.
the class WorldGuardCommands method profile.
@Command(aliases = { "profile" }, usage = "[-p] [-i <interval>] [-t <thread filter>] [<minutes>]", desc = "Profile the CPU usage of the server", min = 0, max = 1, flags = "t:i:p")
@CommandPermissions("worldguard.profile")
public void profile(final CommandContext args, final Actor sender) throws CommandException, AuthorizationException {
Predicate<ThreadInfo> threadFilter;
String threadName = args.getFlag('t');
final boolean pastebin;
if (args.hasFlag('p')) {
sender.checkPermission("worldguard.report.pastebin");
pastebin = true;
} else {
pastebin = false;
}
if (threadName == null) {
threadFilter = new ThreadIdFilter(Thread.currentThread().getId());
} else if (threadName.equals("*")) {
threadFilter = thread -> true;
} else {
threadFilter = new ThreadNameFilter(threadName);
}
int minutes;
if (args.argsLength() == 0) {
minutes = 5;
} else {
minutes = args.getInteger(0);
if (minutes < 1) {
throw new CommandException("You must run the profile for at least 1 minute.");
} else if (minutes > 10) {
throw new CommandException("You can profile for, at maximum, 10 minutes.");
}
}
int interval = 20;
if (args.hasFlag('i')) {
interval = args.getFlagInteger('i');
if (interval < 1 || interval > 100) {
throw new CommandException("Interval must be between 1 and 100 (in milliseconds)");
}
if (interval < 10) {
sender.printDebug("Note: A low interval may cause additional slowdown during profiling.");
}
}
Sampler sampler;
synchronized (this) {
if (activeSampler != null) {
throw new CommandException("A profile is currently in progress! Please use /wg stopprofile to cancel the current profile.");
}
SamplerBuilder builder = new SamplerBuilder();
builder.setThreadFilter(threadFilter);
builder.setRunTime(minutes, TimeUnit.MINUTES);
builder.setInterval(interval);
sampler = activeSampler = builder.start();
}
sender.print(TextComponent.of("Starting CPU profiling. Results will be available in " + minutes + " minutes.", TextColor.LIGHT_PURPLE).append(TextComponent.newline()).append(TextComponent.of("Use ", TextColor.GRAY)).append(TextComponent.of("/wg stopprofile", TextColor.AQUA).clickEvent(ClickEvent.of(ClickEvent.Action.SUGGEST_COMMAND, "/wg stopprofile"))).append(TextComponent.of(" at any time to cancel CPU profiling.", TextColor.GRAY)));
worldGuard.getSupervisor().monitor(FutureForwardingTask.create(sampler.getFuture(), "CPU profiling for " + minutes + " minutes", sender));
sampler.getFuture().addListener(() -> {
synchronized (WorldGuardCommands.this) {
activeSampler = null;
}
}, MoreExecutors.directExecutor());
Futures.addCallback(sampler.getFuture(), new FutureCallback<>() {
@Override
public void onSuccess(Sampler result) {
String output = result.toString();
try {
File dest = new File(worldGuard.getPlatform().getConfigDir().toFile(), "profile.txt");
Files.write(output, dest, StandardCharsets.UTF_8);
sender.print("CPU profiling data written to " + dest.getAbsolutePath());
} catch (IOException e) {
sender.printError("Failed to write CPU profiling data: " + e.getMessage());
}
if (pastebin) {
ActorCallbackPaste.pastebin(worldGuard.getSupervisor(), sender, output, "Profile result: %s.profile");
}
}
@Override
public void onFailure(Throwable throwable) {
}
}, MoreExecutors.directExecutor());
}
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