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Bug 509898 - IndexFileSet.containsDeclaration is slow and is causing UI

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freezes

Added tracing of unusually expensive bindings in IndexFileSet.

Change-Id: I316257d32b4af7357644a2958177efd2df58f864
This commit is contained in:
Sergey Prigogin 2017-02-03 12:32:26 -08:00
parent e7d8ba0ec3
commit 90ad016967
4 changed files with 31 additions and 1 deletions
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3
core/org.eclipse.cdt.core/.options
View file

@ -33,6 +33,9 @@ org.eclipse.cdt.core/debug/typeresolver=false
# Reports issues with locking the index
org.eclipse.cdt.core/debug/index/locks=false
# Reports unusually slow IndexFileSet operations
org.eclipse.cdt.core/debug/index/indexfileset=false
# Reports events related to setting up the indexer for a project
org.eclipse.cdt.core/debug/indexer/setup=false

24
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/index/IndexFileSet.java
View file

@ -30,6 +30,8 @@ import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
public class IndexFileSet implements IIndexFileSet {
public static boolean sDEBUG_INDEX_FILE_SET; // Initialized in the PDOMManager.
private IIndexFileSet fInverse;
private final HashMap<IIndexFragment, IIndexFragmentFileSet> fSubSets= new HashMap<>();
private final Map<IBinding, Boolean> fDeclarationContainmentCache = new HashMap<>();
@ -67,6 +69,7 @@ public class IndexFileSet implements IIndexFileSet {
if (cachedValue != null)
return cachedValue;
int iterationCount = 0;
for (Map.Entry<IIndexFragment, IIndexFragmentFileSet> entry : fSubSets.entrySet()) {
IIndexFragment fragment = entry.getKey();
IIndexFragmentFileSet fragmentFileSet = entry.getValue();
@ -81,14 +84,35 @@ public class IndexFileSet implements IIndexFileSet {
long fileRecord = PDOMName.getFileRecord(db, nameRecord);
if (pdomFileSet.containsFile(fileRecord)) {
fDeclarationContainmentCache.put(binding, true);
if (sDEBUG_INDEX_FILE_SET && iterationCount >= 200) {
System.out.println(
String.format("IndexFileSet: %s (%s) found after %d iterations", //$NON-NLS-1$
String.join("::", binding.getQualifiedName()), //$NON-NLS-1$
binding.getClass().getSimpleName(),
iterationCount));
}
return true;
}
if (sDEBUG_INDEX_FILE_SET && ++iterationCount % 1000 == 0) {
System.out.println(
String.format("IndexFileSet: %s (%s) not yet found after %d iterations", //$NON-NLS-1$
String.join("::", binding.getQualifiedName()), //$NON-NLS-1$
binding.getClass().getSimpleName(),
iterationCount));
}
}
}
} catch (CoreException e) {
CCorePlugin.log(e);
}
}
if (sDEBUG_INDEX_FILE_SET && iterationCount >= 200) {
System.out.println(
String.format("IndexFileSet: %s (%s) not found after %d iterations", //$NON-NLS-1$
String.join("::", binding.getQualifiedName()), //$NON-NLS-1$
binding.getClass().getSimpleName(),
iterationCount));
}
fDeclarationContainmentCache.put(binding, false);
return false;
}

2
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/PDOM.java
View file

@ -110,7 +110,7 @@ public class PDOM extends PlatformObject implements IPDOM {
private static final int BLOCKED_WRITE_LOCK_OUTPUT_INTERVAL = 30000;
private static final int LONG_WRITE_LOCK_REPORT_THRESHOLD = 1000;
private static final int LONG_READ_LOCK_WAIT_REPORT_THRESHOLD = 1000;
static boolean sDEBUG_LOCKS= false; // Initialized in the PDOMManager, because IBM needs PDOM independent of runtime plugin.
static boolean sDEBUG_LOCKS; // Initialized in the PDOMManager, because IBM needs PDOM independent of runtime plugin.
/**
* Identifier for PDOM format

3
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/PDOMManager.java
View file

@ -69,6 +69,7 @@ import org.eclipse.cdt.internal.core.index.IWritableIndex;
import org.eclipse.cdt.internal.core.index.IWritableIndexManager;
import org.eclipse.cdt.internal.core.index.IndexChangeEvent;
import org.eclipse.cdt.internal.core.index.IndexFactory;
import org.eclipse.cdt.internal.core.index.IndexFileSet;
import org.eclipse.cdt.internal.core.index.IndexerStateEvent;
import org.eclipse.cdt.internal.core.index.provider.IndexProviderManager;
import org.eclipse.cdt.internal.core.pdom.PDOM.IListener;
@ -198,6 +199,8 @@ public class PDOMManager implements IWritableIndexManager, IListener {
public PDOMManager() {
PDOM.sDEBUG_LOCKS= Boolean.parseBoolean(Platform.getDebugOption(CCorePlugin.PLUGIN_ID + "/debug/index/locks")); //$NON-NLS-1$
IndexFileSet.sDEBUG_INDEX_FILE_SET=
Boolean.parseBoolean(Platform.getDebugOption(CCorePlugin.PLUGIN_ID + "/debug/index/indexfileset")); //$NON-NLS-1$
addIndexerSetupParticipant(new WaitForRefreshJobs());
fProjectDescriptionListener= new CProjectDescriptionListener(this);
fJobChangeListener= new JobChangeListener(this);