Stepan Gorban created LOG4J2-2858:
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Summary: More flexible configuration of WaitStrategy of Disruptor
Key: LOG4J2-2858
URL: https://issues.apache.org/jira/browse/LOG4J2-2858
Project: Log4j 2
Issue Type: Improvement
Components: Configuration
Affects Versions: 2.13.3
Reporter: Stepan Gorban
Fix For: 2.13.3
I have realized that there is garbage generated from the following stack trace:
{code:java}
AbstractQueuedSynchronizer$Node
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.addConditionWaiter()
long
util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(long)
long com.lmax.disruptor.TimeoutBlockingWaitStrategy.waitFor(long, Sequence,
Sequence, SequenceBarrier)
long com.lmax.disruptor.ProcessingSequenceBarrier.waitFor(long)
void com.lmax.disruptor.BatchEventProcessor.processEvents()
void com.lmax.disruptor.BatchEventProcessor.run()
void java.lang.Thread.run()
{code}
Thus, I would like to use some other wait strategy. However there are only few
possibilities. I would prefer to use SleepingWaitStrategy with custom
parameters. But there is no such option:
{color:#000080}case {color}{color:#008000}"SLEEP"{color}:
{color:#000080}return new {color}SleepingWaitStrategy();
{color:#000080}case {color}{color:#008000}"YIELD"{color}:
{color:#000080}return new {color}YieldingWaitStrategy();
{color:#000080}case {color}{color:#008000}"BLOCK"{color}:
{color:#000080}return new {color}BlockingWaitStrategy();
{color:#000080}case {color}{color:#008000}"BUSYSPIN"{color}:
{color:#000080}return new {color}BusySpinWaitStrategy();
{color:#000080}case {color}{color:#008000}"TIMEOUT"{color}:
{color:#000080}return new {color}TimeoutBlockingWaitStrategy(timeoutMillis,
TimeUnit.{color:#660e7a}MILLISECONDS{color});
{color:#000080}default{color}:
{color:#000080}return new {color}TimeoutBlockingWaitStrategy(timeoutMillis,
TimeUnit.{color:#660e7a}MILLISECONDS{color});
The key goal is to log messages with weak requirements on logging latency, BUT
in the JVM with low-latency code.
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