@Test
public void testContinualAppendCausingEvictionIsStable() {
UpfrontAllocatingPageSource pageSource =
new UpfrontAllocatingPageSource(
new OffHeapBufferSource(), KILOBYTES.toBytes(1024L), KILOBYTES.toBytes(1024));
if (steal) {
OffHeapChainMap<String> mapA =
new OffHeapChainMap<String>(
pageSource, StringPortability.INSTANCE, minPageSize, maxPageSize, true);
OffHeapChainMap<String> mapB =
new OffHeapChainMap<String>(
pageSource, StringPortability.INSTANCE, minPageSize, maxPageSize, true);
for (int c = 0; ; c++) {
long before = mapA.getOccupiedMemory();
for (int i = 0; i < 100; i++) {
mapA.append(Integer.toString(i), buffer(2));
mapB.append(Integer.toString(i), buffer(2));
}
if (mapA.getOccupiedMemory() <= before) {
while (c-- > 0) {
for (int i = 0; i < 100; i++) {
mapA.append(Integer.toString(i), buffer(2));
mapB.append(Integer.toString(i), buffer(2));
}
}
break;
}
}
} else {
OffHeapChainMap<String> map =
new OffHeapChainMap<String>(
pageSource, StringPortability.INSTANCE, minPageSize, maxPageSize, false);
for (int c = 0; ; c++) {
long before = map.getOccupiedMemory();
for (int i = 0; i < 100; i++) {
map.append(Integer.toString(i), buffer(2));
}
if (map.getOccupiedMemory() <= before) {
while (c-- > 0) {
for (int i = 0; i < 100; i++) {
map.append(Integer.toString(i), buffer(2));
}
}
break;
}
}
}
}
public long toKilobytes(double size) {
return multiplyByByteOrderOfMagnitude(size, getOrdinal() - KILOBYTES.getOrdinal());
}
public long toKilobytes(long l) {
return KILOBYTES.convert(l, this);
}
