perf: remove unnecessary blocking in EVCacheOperationFuture #156
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Currently the EVCacheOperationFuture does an isCancelled check before emitting a metric, however this metric is now dead code. But, the isCancelled check is still a synchronized method which results in occasional blocking against memcache event loop.
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Currently the EVCacheOperationFuture does an isCancelled check before emitting a metric, however this metric is now dead code. But, the isCancelled check is still a synchronized method which results in occasional blocking against memcache event loop.
While we are here, clean a tiny bit.
Specifically, this goes through
OperationFuture.isCancelled()->public final synchronized boolean BaseOperationImpl.isCancelled()