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Performance improvements in networking ExecuteProduceConsume engine

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Keep track of when EPC engine can't spawn a new thread as this
might indicate thread-pool exhaustion and cause some network
messages to be lost.

If logging level is NOT 'trace' (or 'all') then don't call
System.currentTimeMillis() as we'll never use the value.

Similarly, don't set thread names if not logging at 'trace' either.

Update EPC tests, particularly unified per-second/end-of-test stats
reporting.
This commit is contained in:
catbref
2020-03-23 11:00:19 +00:00
parent f95cb99cdc
commit e0f024ef5c
2 changed files with 25 additions and 13 deletions
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21
src/test/java/org/qortal/test/EPCTests.java
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@@ -61,12 +61,10 @@ public class EPCTests {
ScheduledExecutorService statusExecutor = Executors.newSingleThreadScheduledExecutor();
statusExecutor.scheduleAtFixedRate(() -> {
StatsSnapshot snapshot = testEPC.getStatsSnapshot();
final StatsSnapshot snapshot = testEPC.getStatsSnapshot();
final long seconds = (System.currentTimeMillis() - start) / 1000L;
System.out.println(String.format("After %d second%s, active threads: %d, greatest thread count: %d, tasks produced: %d, tasks consumed: %d",
seconds, (seconds != 1 ? "s" : ""),
snapshot.activeThreadCount, snapshot.greatestActiveThreadCount,
snapshot.tasksProduced, snapshot.tasksConsumed));
System.out.print(String.format("After %d second%s, ", seconds, (seconds != 1 ? "s" : "")));
printSnapshot(snapshot);
}, 1L, 1L, TimeUnit.SECONDS);
// Let it run for a minute
@@ -79,9 +77,16 @@ public class EPCTests {
System.out.println(String.format("Shutdown took %d milliseconds", after - before));
StatsSnapshot snapshot = testEPC.getStatsSnapshot();
System.out.println(String.format("Greatest thread count: %d, tasks produced: %d, tasks consumed: %d",
snapshot.greatestActiveThreadCount, snapshot.tasksProduced, snapshot.tasksConsumed));
final StatsSnapshot snapshot = testEPC.getStatsSnapshot();
System.out.print("After shutdown, ");
printSnapshot(snapshot);
}
private void printSnapshot(final StatsSnapshot snapshot) {
System.out.println(String.format("threads: %d active (%d max, %d exhaustion%s), tasks: %d produced / %d consumed",
snapshot.activeThreadCount, snapshot.greatestActiveThreadCount,
snapshot.spawnFailures, (snapshot.spawnFailures != 1 ? "s": ""),
snapshot.tasksProduced, snapshot.tasksConsumed));
}
@Test