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new metrics for concurrent collections: max + avg tenured / total heap after concurrent collection
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-1086
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12 files changed

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‎README‎

Lines changed: 15 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -16,7 +16,7 @@ to generate a report (including optional chart image file).
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Supported verbose:gc formats are:
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19-
- Oracle JDK 1.8 (experimental support) -Xloggc:<file> [-XX:+PrintGCDetails] [-XX:+PrintGCDateStamps]
19+
- Oracle JDK 1.8 -Xloggc:<file> [-XX:+PrintGCDetails] [-XX:+PrintGCDateStamps]
2020
- Sun / Oracle JDK 1.7 with option -Xloggc:<file> [-XX:+PrintGCDetails] [-XX:+PrintGCDateStamps]
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- Sun / Oracle JDK 1.6 with option -Xloggc:<file> [-XX:+PrintGCDetails] [-XX:+PrintGCDateStamps]
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- Sun JDK 1.4/1.5 with the option -Xloggc:<file> [-XX:+PrintGCDetails]
@@ -106,7 +106,11 @@ Summary
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- Footprint:
108108
o Maximal amount of memory allocated
109-
- Max heap after full gc:
109+
- Max heap after conc GC:
110+
o Max used heap after concurrent gc.
111+
- Max tenured after conc GC:
112+
o Max used tenured heap after concurrent gc (followed by % of max tenured / % of max total heap).
113+
- Max heap after full GC:
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o Max used heap after full gc. Indicates max live object size and can help to determine heap size.
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- Freed Memory:
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o Total amount of memory that has been freed
@@ -138,7 +142,15 @@ Memory
138142
o Max memory usage / allocation in young space
139143
- Perm heap (usage / alloc max):
140144
o Max memory usage / allocation in perm space
141-
- Max heap after full gc:
145+
- Max tenured after conc GC:
146+
o see in "summary" section
147+
- Avg tenured after conc GC:
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o average size of tenured heap after concurrent collection
149+
- Max heap after conc GC:
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o see in "summary" section
151+
- Avg heap after conc GC:
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o average size of concurrent heap after concurrent collection
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- Max heap after full GC:
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o see in "summary" section
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- Avg after full GC:
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o The average heap memory consumption after a full collection

‎src/main/java/com/tagtraum/perf/gcviewer/ModelPanel.java‎

Lines changed: 38 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -217,6 +217,10 @@ public MemoryTab() {
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addEntry(LocalisationHelper.getString("data_panel_memory_tenured_heap_usage"));
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addEntry(LocalisationHelper.getString("data_panel_memory_young_heap_usage"));
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addEntry(LocalisationHelper.getString("data_panel_memory_perm_heap_usage"));
220+
addEntry(LocalisationHelper.getString("data_panel_tenuredafterconcgc_max"));
221+
addEntry(LocalisationHelper.getString("data_panel_tenuredafterconcgc_avg"));
222+
addEntry(LocalisationHelper.getString("data_panel_footprintafterconcgc_max"));
223+
addEntry(LocalisationHelper.getString("data_panel_footprintafterconcgc_avg"));
220224
addEntry(LocalisationHelper.getString("data_panel_footprintafterfullgc_max"));
221225
addEntry(LocalisationHelper.getString("data_panel_footprintafterfullgc_avg"));
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addEntry(LocalisationHelper.getString("data_panel_footprintaftergc_avg"));
@@ -246,6 +250,8 @@ public void setModel(GCModel model) {
246250
boolean gcSlopeDataAvailable = model.getRelativePostGCIncrease().getN() != 0;
247251
boolean initiatingOccFractionAvailable = model.getCmsInitiatingOccupancyFraction().getN() > 0;
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boolean promotionAvailable = model.getPromotion().getN() > 0;
253+
boolean postConcurrentUsedSizeAvailable = model.getPostConcurrentCycleHeapUsedSizes().getN() > 0;
254+
boolean postConcurrentUsedTenuredSizeAvailable = model.getPostConcurrentCycleTenuredUsedSizes().getN() > 0;
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updateValue(LocalisationHelper.getString("data_panel_memory_heap_usage"),
251257
footprintFormatter.format(model.getHeapUsedSizes().getMax())
@@ -267,6 +273,25 @@ public void setModel(GCModel model) {
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+ " (" + percentFormatter.format(model.getPermUsedSizes().getMax() / (double)model.getPermAllocatedSizes().getMax() * 100) + "%)"
268274
+ " / " + footprintFormatter.format(model.getPermAllocatedSizes().getMax()) : "n/a",
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model.getPermAllocatedSizes().getN() > 0);
276+
updateValue(LocalisationHelper.getString("data_panel_footprintafterconcgc_max"),
277+
postConcurrentUsedSizeAvailable ? footprintFormatter.format(model.getPostConcurrentCycleHeapUsedSizes().getMax())
278+
+ " (" + percentFormatter.format(model.getPostConcurrentCycleHeapUsedSizes().getMax() / (double)model.getFootprint() * 100) + "%)": "n/a",
279+
postConcurrentUsedSizeAvailable);
280+
updateValue(LocalisationHelper.getString("data_panel_footprintafterconcgc_avg"),
281+
postConcurrentUsedSizeAvailable ? footprintFormatter.format(model.getPostConcurrentCycleHeapUsedSizes().average())
282+
+ " (\u03c3=" + sigmaMemoryFormat(model.getPostConcurrentCycleHeapUsedSizes().standardDeviation()) +")" : "n/a",
283+
postConcurrentUsedSizeAvailable && isSignificant(model.getPostConcurrentCycleHeapUsedSizes().average(),
284+
model.getPostConcurrentCycleHeapUsedSizes().standardDeviation()));
285+
updateValue(LocalisationHelper.getString("data_panel_tenuredafterconcgc_max"),
286+
postConcurrentUsedTenuredSizeAvailable ? footprintFormatter.format(model.getPostConcurrentCycleTenuredUsedSizes().getMax())
287+
+ " (" + percentFormatter.format(model.getPostConcurrentCycleTenuredUsedSizes().getMax() / (double)model.getTenuredAllocatedSizes().getMax() * 100) + "% / "
288+
+ percentFormatter.format(model.getPostConcurrentCycleTenuredUsedSizes().getMax() / (double)model.getFootprint() * 100) + "%)": "n/a",
289+
postConcurrentUsedTenuredSizeAvailable);
290+
updateValue(LocalisationHelper.getString("data_panel_tenuredafterconcgc_avg"),
291+
postConcurrentUsedTenuredSizeAvailable ? footprintFormatter.format(model.getPostConcurrentCycleTenuredUsedSizes().average())
292+
+ " (\u03c3=" + sigmaMemoryFormat(model.getPostConcurrentCycleTenuredUsedSizes().standardDeviation()) +")" : "n/a",
293+
postConcurrentUsedTenuredSizeAvailable && isSignificant(model.getPostConcurrentCycleTenuredUsedSizes().average(),
294+
model.getPostConcurrentCycleTenuredUsedSizes().standardDeviation()));
270295
updateValue(LocalisationHelper.getString("data_panel_footprintafterfullgc_max"),
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fullGcDataAvailable ? footprintFormatter.format(model.getFootprintAfterFullGC().getMax())
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+ " (" + percentFormatter.format(model.getFootprintAfterFullGC().getMax() / (double)model.getFootprint() * 100) + "%)": "n/a",
@@ -435,6 +460,8 @@ public SummaryTab() {
435460
super();
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437462
addEntry(LocalisationHelper.getString("data_panel_memory_heap_usage"));
463+
addEntry(LocalisationHelper.getString("data_panel_footprintafterconcgc_max"));
464+
addEntry(LocalisationHelper.getString("data_panel_tenuredafterconcgc_max"));
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addEntry(LocalisationHelper.getString("data_panel_footprintafterfullgc_max"));
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addEntry(LocalisationHelper.getString("data_panel_freedmemory"));
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addEntry(LocalisationHelper.getString("data_panel_freedmemorypermin"));
@@ -449,12 +476,23 @@ public SummaryTab() {
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450477
public void setModel(GCModel model) {
451478
boolean fullGcDataAvailable = model.getFootprintAfterFullGC().getN() > 0;
479+
boolean postConcurrentUsedSizeAvailable = model.getPostConcurrentCycleHeapUsedSizes().getN() > 0;
480+
boolean postConcurrentUsedTenuredSizeAvailable = model.getPostConcurrentCycleTenuredUsedSizes().getN() > 0;
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453482
updateValue(LocalisationHelper.getString("data_panel_memory_heap_usage"),
454483
footprintFormatter.format(model.getHeapUsedSizes().getMax())
455484
+ " (" + percentFormatter.format(model.getHeapUsedSizes().getMax() / (double)model.getHeapAllocatedSizes().getMax() * 100) + "%)"
456485
+ " / " + footprintFormatter.format(model.getHeapAllocatedSizes().getMax()),
457486
true);
487+
updateValue(LocalisationHelper.getString("data_panel_footprintafterconcgc_max"),
488+
postConcurrentUsedSizeAvailable ? footprintFormatter.format(model.getPostConcurrentCycleHeapUsedSizes().getMax())
489+
+ " (" + percentFormatter.format(model.getPostConcurrentCycleHeapUsedSizes().getMax() / (double)model.getFootprint() * 100) + "%)": "n/a",
490+
postConcurrentUsedSizeAvailable);
491+
updateValue(LocalisationHelper.getString("data_panel_tenuredafterconcgc_max"),
492+
postConcurrentUsedTenuredSizeAvailable ? footprintFormatter.format(model.getPostConcurrentCycleTenuredUsedSizes().getMax())
493+
+ " (" + percentFormatter.format(model.getPostConcurrentCycleTenuredUsedSizes().getMax() / (double)model.getTenuredAllocatedSizes().getMax() * 100) + "% / "
494+
+ percentFormatter.format(model.getPostConcurrentCycleTenuredUsedSizes().getMax() / (double)model.getFootprint() * 100) + "%)": "n/a",
495+
postConcurrentUsedTenuredSizeAvailable);
458496
updateValue(LocalisationHelper.getString("data_panel_footprintafterfullgc_max"),
459497
fullGcDataAvailable ? footprintFormatter.format(model.getFootprintAfterFullGC().getMax())
460498
+ " (" + percentFormatter.format(model.getFootprintAfterFullGC().getMax() / (double)model.getFootprint() * 100) + "%)": "n/a",

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