ifesdjeen commented on code in PR #255:
URL: https://github.com/apache/cassandra-accord/pull/255#discussion_r2469368448
##########
accord-core/src/main/java/accord/impl/DefaultLocalListeners.java:
##########
@@ -530,4 +551,177 @@ public void clear()
}
});
}
+
+ @Override
+ public Iterable<TxnId> txnsWaitingOn(SaveStatus saveStatus)
Review Comment:
nit: unclear if intentional or not, but this param is unused
##########
accord-core/src/main/java/accord/impl/progresslog/DefaultProgressLog.java:
##########
@@ -552,38 +553,52 @@ public void accept(@Nullable SafeCommandStore safeStore)
}
}
+ private int runBufferWaitingCount() { return runBufferWaitingEndIndex -
runBufferWaitingIndex; }
+ private int runBufferHomeCount() { return runBufferHomeIndex -
runBufferHomeLastIndex; }
+ private int runBufferTotalCount() { return runBufferWaitingCount() +
runBufferHomeCount(); }
+
private void addToRunBuffer(RunInvoker readyToRun)
{
- if (runBufferCount == runBuffer.length)
+ if (runBufferWaitingEndIndex == runBufferHomeLastIndex)
{
- int newCount = runBufferCount - runBufferIndex;
- Object[] newBuffer = cachedAny().get(Math.max(8, newCount * 2));
+ int newSize = Math.max(8, 2 * runBufferTotalCount());
+ Object[] newBuffer;
+ if (newSize <= runBuffer.length) newBuffer = runBuffer;
+ else newBuffer = cachedAny().get(newSize);
replaceRunBuffer(newBuffer);
}
- runBuffer[runBufferCount++] = readyToRun;
+ if (readyToRun.runKind == Waiting)
runBuffer[runBufferWaitingEndIndex++] = readyToRun;
+ else runBuffer[--runBufferHomeLastIndex] = readyToRun;
}
- private void replaceRunBuffer(Object[] newBuffer)
+ private void maybeShrinkRunBuffer()
{
- Object[] prevBuffer = runBuffer;
- int prevCount = runBufferCount;
- int newCount = prevCount - runBufferIndex;
- System.arraycopy(prevBuffer, runBufferIndex, newBuffer, 0, newCount);
- runBuffer = newBuffer;
- runBufferIndex = 0;
- runBufferCount = newCount;
- if (prevBuffer.length >= ArrayBuffers.MIN_BUFFER_SIZE)
- cachedAny().forceDiscard(prevBuffer, prevCount);
+ if (runBuffer.length <= runBufferTotalCount() / 2 && runBuffer.length
> 8)
Review Comment:
did you mean an inverted statement here?
I am assuming run buffer total count is always smaller than its length, or?
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