public bool Trim()
{
Debug.Assert(s_trimBuffers);
Debug.Assert(s_allTlsBuckets != null);
int milliseconds = Environment.TickCount;
MemoryPressure pressure = GetMemoryPressure();
ArrayPoolEventSource log = ArrayPoolEventSource.Log;
if (log.IsEnabled())
{
log.BufferTrimPoll(milliseconds, (int)pressure);
}
PerCoreLockedStacks?[] perCoreBuckets = _buckets;
for (int i = 0; i < perCoreBuckets.Length; i++)
{
perCoreBuckets[i]?.Trim((uint)milliseconds, Id, pressure, _bucketArraySizes[i]);
}
if (pressure == MemoryPressure.High)
{
// Under high pressure, release all thread locals
if (log.IsEnabled())
{
foreach (KeyValuePair <T[]?[], object?> tlsBuckets in s_allTlsBuckets)
{
T[]?[] buckets = tlsBuckets.Key;
for (int i = 0; i < buckets.Length; i++)
{
T[]? buffer = Interlocked.Exchange(ref buckets[i], null);
if (buffer != null)
{
// As we don't want to take a perf hit in the rent path it
// is possible that a buffer could be rented as we "free" it.
log.BufferTrimmed(buffer.GetHashCode(), buffer.Length, Id);
}
}
}
}
else
{
foreach (KeyValuePair <T[]?[], object?> tlsBuckets in s_allTlsBuckets)
{
T[]?[] buckets = tlsBuckets.Key;
Array.Clear(buckets, 0, buckets.Length);
}
}
}
return(true);
}
public bool Trim()
{
int milliseconds = Environment.TickCount;
MemoryPressure pressure = GetMemoryPressure();
ArrayPoolEventSource log = ArrayPoolEventSource.Log;
if (log.IsEnabled())
{
log.BufferTrimPoll(milliseconds, (int)pressure);
}
foreach (PerCoreLockedStacks bucket in _buckets)
{
bucket?.Trim((uint)milliseconds, Id, pressure, _bucketArraySizes);
}
if (pressure == MemoryPressure.High)
{
// Under high pressure, release all thread locals
foreach (KeyValuePair <T[][], object> tlsBuckets in s_AllTlsBuckets)
{
T[][] buckets = tlsBuckets.Key;
for (int i = 0; i < NumBuckets; i++)
{
T[] buffer = buckets[i];
buckets[i] = null;
if (log.IsEnabled() && buffer != null)
{
log.BufferTrimmed(buffer.GetHashCode(), buffer.Length, Id);
}
}
}
}
return(true);
}
