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Limit memory usage to avoid out of memory errors when 'Cache Boost' feature is enabled

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This commit is contained in:
Bane Stojkovic
2022-07-05 00:59:30 +02:00
parent bcc1a2cb3a
commit 8d385ef812
2 changed files with 27 additions and 6 deletions
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diylc/diylc-core/src/org/diylc/presenter/DrawingCache.java
+19 -6
View File
@@ -22,10 +22,10 @@ import java.awt.geom.Area;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.lang.ref.SoftReference;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.log4j.Logger;
import org.diylc.common.ComponentType;
import org.diylc.core.ComponentState;
@@ -44,7 +44,7 @@ import org.diylc.utils.Pair;
*/
public class DrawingCache {
private Map<IDIYComponent<?>, CacheValue> imageCache = new HashMap<IDIYComponent<?>, CacheValue>();
private Map<IDIYComponent<?>, SoftReference<CacheValue>> imageCache = new HashMap<IDIYComponent<?>, SoftReference<CacheValue>>();
private Map<String, Pair<Counter, Counter>> renderStatsByType = new HashMap<String, Pair<Counter, Counter>>();
@@ -139,9 +139,18 @@ public class DrawingCache {
}
public void logStats() {
int totalSizeMB = imageCache.values().stream().map(x -> x.image.getData().getDataBuffer().getSize()).reduce(0, Integer::sum) * 4 / 1024 / 1024; // 4 bytes per pixel
int totalSizeMB = imageCache.values()
.stream()
.map(x -> x.get() == null ? 0 : x.get().image.getData().getDataBuffer().getSize())
.reduce(0, Integer::sum) * 4 / 1024 / 1024; // 4 bytes per pixel
LOG.debug(String.format("Render cache contains %d elements, approx size is %d MB", imageCache.size(), totalSizeMB));
long evictedCount = imageCache.values()
.stream()
.filter(x -> x.get() == null)
.count();
LOG.debug(String.format("Render cache contains %d evicted entries", evictedCount));
String mapAsString = renderStatsByType.entrySet().stream().sorted((e1, e2) -> -Long.compare(e1.getValue().getFirst().getNanoTime() + e1.getValue().getSecond().getNanoTime(),
e2.getValue().getFirst().getNanoTime() + e2.getValue().getSecond().getNanoTime()))
.map(e -> e.getKey() + ": render: " + e.getValue().getFirst() + ", paste: " + e.getValue().getSecond())
@@ -161,8 +170,12 @@ public class DrawingCache {
// cache hit!
CacheValue value = null;
if (imageCache.containsKey(component))
value = imageCache.get(component);
if (imageCache.containsKey(component)) {
SoftReference<CacheValue> weakReference = imageCache.get(component);
if (weakReference != null) {
value = weakReference.get();
}
}
// only honor the cache if the component hasn't changed in the meantime
if (value == null || !value.getComponent().equalsTo(component)
@@ -237,7 +250,7 @@ public class DrawingCache {
// add to the cache
value = new CacheValue(component, image, wrapper.getCurrentArea(), wrapper.getContinuityPositiveAreas(),
wrapper.getContinuityNegativeAreas(), componentState, outlineMode, zoom, dx, dy, rect);
imageCache.put(component, value);
imageCache.put(component, new SoftReference<DrawingCache.CacheValue>(value));
}
return value;
diylc/diylc-core/src/org/diylc/presenter/update.xml
+8
View File
@@ -3862,10 +3862,18 @@
<changeType>BUG_FIX</changeType>
<description>Status bar shows a wrong number of selected components</description>
</org.diylc.appframework.update.Change>
<org.diylc.appframework.update.Change>
<changeType>IMPROVEMENT</changeType>
<description>Limit memory usage to avoid out of memory errors when 'Cache Boost' feature is enabled</description>
</org.diylc.appframework.update.Change>
<org.diylc.appframework.update.Change>
<changeType>IMPROVEMENT</changeType>
<description>Added BJT BCE pinout to transistor components</description>
</org.diylc.appframework.update.Change>
<org.diylc.appframework.update.Change>
<changeType>IMPROVEMENT</changeType>
<description>Changed resistor orange band color to more intense orange</description>
</org.diylc.appframework.update.Change>
</changes>
<url>https://github.com/bancika/diy-layout-creator/releases</url>
</org.diylc.appframework.update.Version>