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Code Issues Releases Wiki Activity

Improvements for coroutine creation

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- Keep track of the number of created and destroyed coroutines for each
   computer.
 - Run coroutines with a thread pool executor, which will keep stale
   threads around for 60 seconds. This substantially reduces the
   pressure from short-lived coroutines.
 - Update to the latest Cobalt version.
This commit is contained in:
SquidDev 2018-11-21 16:46:42 +00:00
parent f9c91f288f
commit 93cb6547bd
4 changed files with 77 additions and 51 deletions
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2
build.gradle
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@ -66,7 +66,7 @@ dependencies {
runtime "mezz.jei:jei_1.12.2:4.8.5.159"
shade 'org.squiddev:Cobalt:0.3.2'
shade 'org.squiddev:Cobalt:0.4.0'
testCompile 'junit:junit:4.11'

2
src/main/java/dan200/computercraft/core/apis/http/HTTPExecutor.java
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@ -24,7 +24,7 @@ public final class HTTPExecutor
public static final ListeningExecutorService EXECUTOR = MoreExecutors.listeningDecorator( new ThreadPoolExecutor(
4, Integer.MAX_VALUE,
60L, TimeUnit.SECONDS,
new SynchronousQueue<Runnable>(),
new SynchronousQueue<>(),
new ThreadFactoryBuilder()
.setDaemon( true )
.setPriority( Thread.MIN_PRIORITY + (Thread.NORM_PRIORITY - Thread.MIN_PRIORITY) / 2 )

121
src/main/java/dan200/computercraft/core/lua/CobaltLuaMachine.java
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@ -6,15 +6,14 @@
package dan200.computercraft.core.lua;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import dan200.computercraft.ComputerCraft;
import dan200.computercraft.api.lua.ILuaContext;
import dan200.computercraft.api.lua.ILuaObject;
import dan200.computercraft.api.lua.ILuaTask;
import dan200.computercraft.api.lua.LuaException;
import dan200.computercraft.api.lua.ILuaAPI;
import dan200.computercraft.api.lua.*;
import dan200.computercraft.core.computer.Computer;
import dan200.computercraft.core.computer.ITask;
import dan200.computercraft.core.computer.MainThread;
import dan200.computercraft.core.tracking.Tracking;
import dan200.computercraft.core.tracking.TrackingField;
import org.squiddev.cobalt.*;
import org.squiddev.cobalt.compiler.CompileException;
import org.squiddev.cobalt.compiler.LoadState;
@ -25,7 +24,7 @@ import org.squiddev.cobalt.function.LibFunction;
import org.squiddev.cobalt.function.LuaFunction;
import org.squiddev.cobalt.function.VarArgFunction;
import org.squiddev.cobalt.lib.*;
import org.squiddev.cobalt.lib.platform.AbstractResourceManipulator;
import org.squiddev.cobalt.lib.platform.VoidResourceManipulator;
import javax.annotation.Nonnull;
import java.io.IOException;
@ -35,6 +34,9 @@ import java.util.Arrays;
import java.util.HashMap;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import static org.squiddev.cobalt.Constants.NONE;
import static org.squiddev.cobalt.ValueFactory.valueOf;
@ -42,6 +44,16 @@ import static org.squiddev.cobalt.ValueFactory.varargsOf;
public class CobaltLuaMachine implements ILuaMachine
{
private static final ThreadPoolExecutor coroutines = new ThreadPoolExecutor(
0, Integer.MAX_VALUE,
60L, TimeUnit.SECONDS,
new SynchronousQueue<>(),
new ThreadFactoryBuilder()
.setDaemon( true )
.setNameFormat( "ComputerCraft-Coroutine-%d" )
.build()
);
private final Computer m_computer;
private final LuaState m_state;
@ -57,60 +69,71 @@ public class CobaltLuaMachine implements ILuaMachine
m_computer = computer;
// Create an environment to run in
final LuaState state = this.m_state = new LuaState( new AbstractResourceManipulator()
{
@Override
public InputStream findResource( String filename )
LuaState state = this.m_state = LuaState.builder()
.resourceManipulator( new VoidResourceManipulator() )
.debug( new DebugHandler()
{
return null;
}
} );
state.debug = new DebugHandler( state )
{
private int count = 0;
private boolean hasSoftAbort;
private int count = 0;
private boolean hasSoftAbort;
@Override
public void onInstruction( DebugState ds, DebugFrame di, int pc, Varargs extras, int top ) throws LuaError
{
int count = ++this.count;
if( count > 100000 )
@Override
public void onInstruction( DebugState ds, DebugFrame di, int pc, Varargs extras, int top ) throws LuaError
{
if( m_hardAbortMessage != null ) LuaThread.yield( state, NONE );
this.count = 0;
int count = ++this.count;
if( count > 100000 )
{
if( m_hardAbortMessage != null ) LuaThread.yield( m_state, NONE );
this.count = 0;
}
else
{
handleSoftAbort();
}
super.onInstruction( ds, di, pc, extras, top );
}
else
@Override
public void poll() throws LuaError
{
if( m_hardAbortMessage != null ) LuaThread.yield( m_state, NONE );
handleSoftAbort();
}
super.onInstruction( ds, di, pc, extras, top );
}
private void handleSoftAbort() throws LuaError
{
// If the soft abort has been cleared then we can reset our flags and continue.
String message = m_softAbortMessage;
if( message == null )
{
hasSoftAbort = false;
return;
}
@Override
public void poll() throws LuaError
{
if( m_hardAbortMessage != null ) LuaThread.yield( state, NONE );
handleSoftAbort();
}
if( hasSoftAbort && m_hardAbortMessage == null )
{
// If we have fired our soft abort, but we haven't been hard aborted then everything is OK.
return;
}
private void handleSoftAbort() throws LuaError {
// If the soft abort has been cleared then we can reset our flags and continue.
String message = m_softAbortMessage;
if (message == null) {
hasSoftAbort = false;
return;
hasSoftAbort = true;
throw new LuaError( message );
}
if (hasSoftAbort && m_hardAbortMessage == null) {
// If we have fired our soft abort, but we haven't been hard aborted then everything is OK.
return;
}
hasSoftAbort = true;
throw new LuaError(message);
}
};
} )
.coroutineFactory( command -> {
Tracking.addValue( m_computer, TrackingField.COROUTINES_CREATED, 1 );
coroutines.execute( () -> {
try
{
command.run();
}
finally
{
Tracking.addValue( m_computer, TrackingField.COROUTINES_DISPOSED, 1 );
}
} );
} )
.build();
m_globals = new LuaTable();
state.setupThread( m_globals );

3
src/main/java/dan200/computercraft/core/tracking/TrackingField.java
View File

@ -28,6 +28,9 @@ public class TrackingField
public static final TrackingField WEBSOCKET_INCOMING = TrackingField.of( "websocket_incoming", "Websocket incoming", TrackingField::formatBytes );
public static final TrackingField WEBSOCKET_OUTGOING = TrackingField.of( "websocket_outgoing", "Websocket outgoing", TrackingField::formatBytes );
public static final TrackingField COROUTINES_CREATED = TrackingField.of( "coroutines_created", "Coroutines created", x -> String.format( "%4d", x ) );
public static final TrackingField COROUTINES_DISPOSED = TrackingField.of( "coroutines_dead", "Coroutines disposed", x -> String.format( "%4d", x ) );
private final String id;
private final String displayName;
private final LongFunction<String> format;