233 throw new RuntimeException("Inconsistent min/initial/max heap sizes, they are " +
234 v.minHeapSize + "/" + v.initialHeapSize + "/" + v.maxHeapSize);
235 }
236 }
237
238 /**
239 * Verify whether the VM respects the given maximum heap size in MB for the
240 * GC specified.
241 * @param gcflag The garbage collector to test as command line flag. E.g. -XX:+UseG1GC
242 * @param maxHeapSize the maximum heap size to verify, in MB.
243 */
244 public static void checkGenMaxHeapSize(String gcflag, long maxHeapsize) throws Exception {
245 final long K = 1024;
246
247 MinInitialMaxValues v = new MinInitialMaxValues();
248 getMinInitialMaxHeap(new String[] { gcflag, "-XX:MaxHeapSize=" + maxHeapsize + "M" }, v);
249
250 long expectedHeapSize = align_up(maxHeapsize * K * K, v.maxAlignment);
251 long actualHeapSize = v.maxHeapSize;
252
253 if (actualHeapSize > expectedHeapSize) {
254 throw new RuntimeException("Heap has " + actualHeapSize +
255 " bytes, expected to be less than " + expectedHeapSize);
256 }
257 }
258
259 private static long getFlagValue(String flag, String where) {
260 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where);
261 if (!m.find()) {
262 throw new RuntimeException("Could not find value for flag " + flag + " in output string");
263 }
264 String match = m.group();
265 return Long.parseLong(match.substring(match.lastIndexOf(" ") + 1, match.length()));
266 }
267
268 private static void shouldContainOrNot(OutputAnalyzer output, boolean contains, String message) throws Exception {
269 if (contains) {
270 output.shouldContain(message);
271 } else {
272 output.shouldNotContain(message);
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233 throw new RuntimeException("Inconsistent min/initial/max heap sizes, they are " +
234 v.minHeapSize + "/" + v.initialHeapSize + "/" + v.maxHeapSize);
235 }
236 }
237
238 /**
239 * Verify whether the VM respects the given maximum heap size in MB for the
240 * GC specified.
241 * @param gcflag The garbage collector to test as command line flag. E.g. -XX:+UseG1GC
242 * @param maxHeapSize the maximum heap size to verify, in MB.
243 */
244 public static void checkGenMaxHeapSize(String gcflag, long maxHeapsize) throws Exception {
245 final long K = 1024;
246
247 MinInitialMaxValues v = new MinInitialMaxValues();
248 getMinInitialMaxHeap(new String[] { gcflag, "-XX:MaxHeapSize=" + maxHeapsize + "M" }, v);
249
250 long expectedHeapSize = align_up(maxHeapsize * K * K, v.maxAlignment);
251 long actualHeapSize = v.maxHeapSize;
252
253 // bug 8027915 & 8027960: compensate for some cases of large pages
254 if (gcflag.equals("-XX:+UseParallelOldGC")) {
255 int numberOfSpaces = 4;
256 expectedHeapSize = Math.max(expectedHeapSize, numberOfSpaces * v.minAlignment);
257 }
258
259 if (actualHeapSize > expectedHeapSize) {
260 throw new RuntimeException("Heap has " + actualHeapSize +
261 " bytes, expected to be less than " + expectedHeapSize);
262 }
263 }
264
265 private static long getFlagValue(String flag, String where) {
266 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where);
267 if (!m.find()) {
268 throw new RuntimeException("Could not find value for flag " + flag + " in output string");
269 }
270 String match = m.group();
271 return Long.parseLong(match.substring(match.lastIndexOf(" ") + 1, match.length()));
272 }
273
274 private static void shouldContainOrNot(OutputAnalyzer output, boolean contains, String message) throws Exception {
275 if (contains) {
276 output.shouldContain(message);
277 } else {
278 output.shouldNotContain(message);
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