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test/gc/g1/plab/lib/LogParser.java
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@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
@@ -20,27 +20,31 @@
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package gc.g1.plab.lib;
-import java.util.ArrayList;
+import java.util.EnumMap;
import java.util.HashMap;
-import java.util.List;
import java.util.Map;
+import java.util.Optional;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
-import jdk.test.lib.Pair;
/**
* LogParser class parses VM output to get PLAB and ConsumptionStats values.
*
- * Typical GC log with PLAB statistics looks like:
+ * Typical GC log with PLAB statistics (options - -Xlog:gc=debug,gc+plab=debug) looks like:
*
- * #1: [GC pause (WhiteBox Initiated Young GC) (young) (allocated = 0 wasted = 0 unused = 0 used = 0 undo_waste = 0 region_end_waste = 0 regions filled = 0 direct_allocated = 0 failure_used = 0 failure_waste = 0) (plab_sz = 0 desired_plab_sz = 258)
- * (allocated = 70692 wasted = 1450 unused = 1287 used = 67955 undo_waste = 0 region_end_waste = 0 regions filled = 1 direct_allocated = 19003 failure_used = 0 failure_waste = 0) (plab_sz = 13591 desired_plab_sz = 10193)
- * where first line is statistic for young PLAB and second line is for old PLAB.
+ * [2,244s][info ][gc ] GC(30) Concurrent Mark abort
+ * [2,245s][debug ][gc,plab] GC(33) (allocated = 1 wasted = 0 unused = 0 used = 1 undo_waste = 0 region_end_waste = 0 regions filled = 0 direct_allocated = 0 failure_used = 0 failure_waste = 0) (plab_sz = 0 desired_plab_sz = 258)
+ * [2,245s][debug ][gc,plab] GC(33) (allocated = 1 wasted = 0 unused = 0 used = 1 undo_waste = 0 region_end_waste = 0 regions filled = 0 direct_allocated = 0 failure_used = 0 failure_waste = 0) (plab_sz = 0 desired_plab_sz = 258)
+ * [2,245s][info ][gc ] GC(33) Pause Young (G1 Evacuation Pause) 127M->127M(128M) (2,244s, 2,245s) 0,899ms
+ * [2,246s][debug ][gc,plab] GC(34) (allocated = 1 wasted = 0 unused = 0 used = 1 undo_waste = 0 region_end_waste = 0 regions filled = 0 direct_allocated = 0 failure_used = 0 failure_waste = 0) (plab_sz = 0 desired_plab_sz = 258)
+ * [2,246s][debug ][gc,plab] GC(34) (allocated = 1 wasted = 0 unused = 0 used = 1 undo_waste = 0 region_end_waste = 0 regions filled = 0 direct_allocated = 0 failure_used = 0 failure_waste = 0) (plab_sz = 0 desired_plab_sz = 258)
+ * [2,246s][info ][gc ] GC(34) Pause Initial Mark (G1 Evacuation Pause) 127M->127M(128M) (2,245s, 2,246s) 0,907ms
+
*/
final public class LogParser {
// Name for GC ID field in report.
public final static String GC_ID = "gc_id";
@@ -53,16 +57,17 @@
SURVIVOR_STATS,
OLD_STATS
}
private final String log;
- private final List<Pair<ReportType, ? extends Map<String, Long>>> reportHolder;
+
+ private final Map<Long, Map<ReportType, Map<String,Long>>> reportHolder;
// GC ID
- private static final Pattern GC_ID_PATTERN = Pattern.compile("#(\\d+):");
+ private static final Pattern GC_ID_PATTERN = Pattern.compile("\\[gc,plab\\] GC\\((\\d+)\\)");
// Pattern for extraction pair <name>=<numeric value>
- private static final Pattern PAIRS_PATTERN = Pattern.compile("\\w+\\s*=\\s*\\d+");
+ private static final Pattern PAIRS_PATTERN = Pattern.compile("\\w+\\s+=\\s+\\d+");
/**
* Construct LogParser Object
*
* @param log - VM Output
@@ -85,47 +90,53 @@
/**
* Returns list of log entries.
*
* @return list of Pair with ReportType and Map of parameters/values.
*/
- public List<Pair<ReportType, ? extends Map<String, Long>>> getEntries() {
+ public Map<Long,Map<ReportType, Map<String,Long>>> getEntries() {
return reportHolder;
}
- private List<Pair<ReportType, ? extends Map<String, Long>>> parseLines() throws NumberFormatException {
+ private Map<Long,Map<ReportType, Map<String,Long>>> parseLines() throws NumberFormatException {
Scanner lineScanner = new Scanner(log);
- List<Pair<ReportType, ? extends Map<String, Long>>> allocationStatistics = new ArrayList<>();
- long gc_id = 0;
+ Map<Long,Map<ReportType, Map<String,Long>>> allocationStatistics = new HashMap<>();
+ Optional<Long> gc_id;
while (lineScanner.hasNextLine()) {
String line = lineScanner.nextLine();
- // If no any prefix - this is the Old PLAB statistics
- ReportType currentStats = ReportType.OLD_STATS;
- // #NUMBER - this is first line of PLAB statistics
- if (line.startsWith("#")) {
- currentStats = ReportType.SURVIVOR_STATS;
gc_id = getGcId(line);
- }
-
+ if ( gc_id.isPresent() ) {
Matcher matcher = PAIRS_PATTERN.matcher(line);
if (matcher.find()) {
- HashMap<String, Long> map = new HashMap<>();
- map.put(GC_ID, gc_id);
- allocationStatistics.add(new Pair<>(currentStats, map));
+ Map<ReportType,Map<String, Long>> oneReportItem;
+ ReportType reportType;
+ // Second line in log is statistics for Old PLAB allocation
+ if ( !allocationStatistics.containsKey(gc_id.get()) ) {
+ oneReportItem = new EnumMap<>(ReportType.class);
+ reportType = ReportType.SURVIVOR_STATS;
+ allocationStatistics.put(gc_id.get(), oneReportItem);
+ } else {
+ oneReportItem = allocationStatistics.get(gc_id.get());
+ reportType = ReportType.OLD_STATS;
+ }
+
// Extract all pairs from log.
+ HashMap<String, Long> plabStats = new HashMap<>();
do {
String pair = matcher.group();
String[] nameValue = pair.replaceAll(" ", "").split("=");
- map.put(nameValue[0], Long.parseLong(nameValue[1]));
+ plabStats.put(nameValue[0], Long.parseLong(nameValue[1]));
} while (matcher.find());
+ oneReportItem.put(reportType,plabStats);
+ }
}
}
return allocationStatistics;
}
- private long getGcId(String line) {
+ private Optional<Long> getGcId(String line) {
Matcher number = GC_ID_PATTERN.matcher(line);
if (number.find()) {
- return Long.parseLong(number.group(1));
+ return Optional.of(Long.parseLong(number.group(1)));
}
- throw new RuntimeException("Should not reach");
+ return Optional.empty();
}
}
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