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Unconditional zeroing out of newly allocated memory, because 1) it is very slow in Java-Lang 6.7.3 due to a bug 2) not clear which way is better, see HCOLL-401

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This commit is contained in:
leventov
2015-10-07 16:51:21 +03:00
parent 81535163b2
commit 96cee73f26
1 changed files with 4 additions and 4 deletions
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src/main/java/net/openhft/chronicle/hash/impl/VanillaChronicleHash.java
+4 -4
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@@ -354,7 +354,7 @@ public abstract class VanillaChronicleHash<K, KI, MKI extends MetaBytesInterop<K
private void zeroOutGlobalMutableState() {
long end = headerSize + globalMutableStateTotalUsedSize();
bytes.zeroOut(headerSize, end, true);
bytes.zeroOut(headerSize, end);
}
protected long globalMutableStateTotalUsedSize() {
@@ -362,7 +362,7 @@ public abstract class VanillaChronicleHash<K, KI, MKI extends MetaBytesInterop<K
}
private void zeroOutSegmentHeaders() {
bytes.zeroOut(segmentHeadersOffset, segmentsOffset, true);
bytes.zeroOut(segmentHeadersOffset, segmentsOffset);
}
private void zeroOutFirstSegmentTiers() {
@@ -375,7 +375,7 @@ public abstract class VanillaChronicleHash<K, KI, MKI extends MetaBytesInterop<K
private void zeroOutNewlyMappedTier(Bytes bytes, long segmentOffset) {
// Zero out hash lookup, tier data and free list bit set. Leave entry space.
long zeroOutEnd = segmentOffset + segmentSize - segmentEntrySpaceOuterSize;
bytes.zeroOut(segmentOffset, zeroOutEnd, true);
bytes.zeroOut(segmentOffset, zeroOutEnd);
}
private void initTierBulks(long byteStoreSize) {
@@ -616,7 +616,7 @@ public abstract class VanillaChronicleHash<K, KI, MKI extends MetaBytesInterop<K
long firstTierOffset = tierBytesOffset(firstTierIndex);
if (tierBulkInnerOffsetToTiers > 0) {
// These bytes are bit sets in Replicated version
bytes.zeroOut(firstTierOffset - tierBulkInnerOffsetToTiers, firstTierOffset, true);
bytes.zeroOut(firstTierOffset - tierBulkInnerOffsetToTiers, firstTierOffset);
}
// Link newly allocated tiers into free tiers list