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Additional ThreadPool worker and IOCP thread startup logic 

Signed-off-by: BlueWall <jamesh@bluewallgroup.com>
user_profiles
Allen Kerensky 2013-02-09 15:06:42 -06:00 committed by BlueWall
parent adedd70c35
commit 7524bd5a7c
1 changed files with 39 additions and 6 deletions
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45
OpenSim/Region/Application/Application.cs
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@ -102,17 +102,50 @@ namespace OpenSim
m_log.InfoFormat(
"[OPENSIM MAIN]: Environment variable MONO_THREADS_PER_CPU is {0}", monoThreadsPerCpu ?? "unset");
// Increase the number of IOCP threads available. Mono defaults to a tragically low number
// Verify the Threadpool allocates or uses enough worker and IO completion threads
// .NET 2.0 workerthreads default to 50 * numcores
// .NET 3.0 workerthreads defaults to 250 * numcores
// .NET 4.0 workerthreads are dynamic based on bitness and OS resources
// Max IO Completion threads are 1000 on all 3 CLRs.
int workerThreadsMin = 500;
int workerThreadsMax = 1000; // may need further adjustment to match other CLR
int iocpThreadsMin = 1000;
int iocpThreadsMax = 2000; // may need further adjustment to match other CLR
int workerThreads, iocpThreads;
System.Threading.ThreadPool.GetMaxThreads(out workerThreads, out iocpThreads);
m_log.InfoFormat("[OPENSIM MAIN]: Runtime gave us {0} worker threads and {1} IOCP threads", workerThreads, iocpThreads);
if (workerThreads < 500 || iocpThreads < 1000)
if (workerThreads < workerThreadsMin)
{
workerThreads = 500;
iocpThreads = 1000;
m_log.Info("[OPENSIM MAIN]: Bumping up to 500 worker threads and 1000 IOCP threads");
System.Threading.ThreadPool.SetMaxThreads(workerThreads, iocpThreads);
workerThreads = workerThreadsMin;
m_log.InfoFormat("[OPENSIM MAIN]: Bumping up to worker threads to {0}",workerThreads);
}
if (workerThreads > workerThreadsMax)
{
workerThreads = workerThreadsMax;
m_log.InfoFormat("[OPENSIM MAIN]: Limiting worker threads to {0}",workerThreads);
}
// Increase the number of IOCP threads available.
// Mono defaults to a tragically low number (24 on 6-core / 8GB Fedora 17)
if (iocpThreads < iocpThreadsMin)
{
iocpThreads = iocpThreadsMin;
m_log.InfoFormat("[OPENSIM MAIN]: Bumping up IO completion threads to {0}",iocpThreads);
}
// Make sure we don't overallocate IOCP threads and thrash system resources
if ( iocpThreads > iocpThreadsMax )
{
iocpThreads = iocpThreadsMax;
m_log.InfoFormat("[OPENSIM MAIN]: Limiting IO completion threads to {0}",iocpThreads);
}
// set the resulting worker and IO completion thread counts back to ThreadPool
if ( System.Threading.ThreadPool.SetMaxThreads(workerThreads, iocpThreads) )
{
m_log.InfoFormat("[OPENSIM MAIN]: Threadpool set to {0} worker threads and {1} IO completion threads", workerThreads, iocpThreads);
}
else
{
m_log.Info("[OPENSIM MAIN]: Threadpool reconfiguration failed, runtime defaults still in effect.");
}
// Check if the system is compatible with OpenSimulator.
// Ensures that the minimum system requirements are met