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ICU-2038 use new GC procedure

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X-SVN-Rev: 10269
This commit is contained in:
Alan Liu 2002-11-15 19:55:44 +00:00
parent 3c1e60a214
commit 1f3d8b8ae9
1 changed files with 26 additions and 10 deletions
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36
icu4j/src/com/ibm/icu/dev/test/perf/PerfTest.java
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@ -311,16 +311,32 @@ public abstract class PerfTest {
* until the amount of free memory stabilizes to within 10%.
*/
protected void gc() {
long last;
long free = 1;
Runtime runtime = Runtime.getRuntime();
do {
runtime.gc();
last = free;
free = runtime.freeMemory();
} while (((double)Math.abs(free - last)) / free > 0.1);
// Wait for the change in free memory to drop under 10%
// between successive calls.
if (false) {
long last;
long free = 1;
Runtime runtime = Runtime.getRuntime();
do {
runtime.gc();
last = free;
free = runtime.freeMemory();
} while (((double)Math.abs(free - last)) / free > 0.1);
// Wait for the change in free memory to drop under 10%
// between successive calls.
}
// From "Java Platform Performance". This is the procedure
// recommended by Javasoft.
try {
System.gc();
Thread.currentThread().sleep(100);
System.runFinalization();
Thread.currentThread().sleep(100);
System.gc();
Thread.currentThread().sleep(100);
System.runFinalization();
Thread.currentThread().sleep(100);
} catch (InterruptedException e) {}
}
/**