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Slightly more detailed negative allocation logging

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Hopefully will help debug #1739. Maybe.
This commit is contained in:
Jonathan Coates 2024-03-10 11:26:36 +00:00
parent a9191a4d4e
commit 3b8813cf8f
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1 changed files with 16 additions and 5 deletions
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21
projects/core/src/main/java/dan200/computercraft/core/computer/computerthread/ComputerThread.java
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@ -518,6 +518,7 @@ public final class ComputerThread implements ComputerScheduler {
} else { } else {
allocations = null; allocations = null;
} }
var allocationTime = System.nanoTime();
for (var i = 0; i < workers.length; i++) { for (var i = 0; i < workers.length; i++) {
var runner = workers[i]; var runner = workers[i];
@ -532,7 +533,7 @@ public final class ComputerThread implements ComputerScheduler {
// And track the allocated memory. // And track the allocated memory.
if (allocations != null) { if (allocations != null) {
executor.updateAllocations(new ThreadAllocation(workerThreadIds[i], allocations[i])); executor.updateAllocations(new ThreadAllocation(workerThreadIds[i], allocations[i], allocationTime));
} }
// If we're still within normal execution times (TIMEOUT) or soft abort (ABORT_TIMEOUT), // If we're still within normal execution times (TIMEOUT) or soft abort (ABORT_TIMEOUT),
@ -814,7 +815,7 @@ public final class ComputerThread implements ComputerScheduler {
if (ThreadAllocations.isSupported()) { if (ThreadAllocations.isSupported()) {
var current = Thread.currentThread().getId(); var current = Thread.currentThread().getId();
THREAD_ALLOCATION.set(this, new ThreadAllocation(current, ThreadAllocations.getAllocatedBytes(current))); THREAD_ALLOCATION.set(this, new ThreadAllocation(current, ThreadAllocations.getAllocatedBytes(current), System.nanoTime()));
} }
} }
@ -832,11 +833,20 @@ public final class ComputerThread implements ComputerScheduler {
var info = THREAD_ALLOCATION.getAndSet(this, null); var info = THREAD_ALLOCATION.getAndSet(this, null);
assert info.threadId() == current; assert info.threadId() == current;
var allocated = ThreadAllocations.getAllocatedBytes(current) - info.allocatedBytes(); var allocatedTotal = ThreadAllocations.getAllocatedBytes(current);
var allocated = allocatedTotal - info.allocatedBytes();
if (allocated > 0) { if (allocated > 0) {
metrics.observe(Metrics.JAVA_ALLOCATION, allocated); metrics.observe(Metrics.JAVA_ALLOCATION, allocated);
} else if (allocated < 0) { } else if (allocated < 0) {
LOG.warn("Allocated a negative number of bytes ({})!", allocated); LOG.warn(
"""
Allocated a negative number of bytes ({})!
Previous measurement at t={} on Thread #{} = {}
Current measurement at t={} on Thread #{} = {}""",
allocated,
info.time(), info.threadId(), info.allocatedBytes(),
System.nanoTime(), current, allocatedTotal
);
} }
} }
@ -901,7 +911,8 @@ public final class ComputerThread implements ComputerScheduler {
* *
* @param threadId The ID of this thread. * @param threadId The ID of this thread.
* @param allocatedBytes The amount of memory this thread has allocated. * @param allocatedBytes The amount of memory this thread has allocated.
* @param time The time (in nanoseconds) when this time was computed.
*/ */
private record ThreadAllocation(long threadId, long allocatedBytes) { private record ThreadAllocation(long threadId, long allocatedBytes, long time) {
} }
} }