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Made ThreadCount configurable

This commit is contained in:
Kristian Hellang 2015-12-07 14:46:53 +01:00
parent 75cfe2c3bb
commit b6b8ea3c38
1 changed files with 19 additions and 14 deletions
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33
src/Microsoft.AspNet.Server.Kestrel/KestrelServerInformation.cs
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@ -42,23 +42,28 @@ namespace Microsoft.AspNet.Server.Kestrel
private static int GetThreadCount(IConfiguration configuration) private static int GetThreadCount(IConfiguration configuration)
{ {
// Actual core count would be a better number var threadCountString = configuration["server.threadCount"];
// rather than logical cores which includes hyper-threaded cores.
// Divide by 2 for hyper-threading, and good defaults (still need threads to do webserving).
// Can be user overriden using IKestrelServerInformation.ThreadCount
var threadCount = Environment.ProcessorCount >> 1;
if (threadCount < 1) int threadCount;
if (string.IsNullOrEmpty(threadCountString) || !int.TryParse(threadCountString, out threadCount))
{ {
// Ensure shifted value is at least one // Actual core count would be a better number
return 1; // rather than logical cores which includes hyper-threaded cores.
} // Divide by 2 for hyper-threading, and good defaults (still need threads to do webserving).
threadCount = Environment.ProcessorCount >> 1;
if (threadCount > 16) if (threadCount < 1)
{ {
// Receive Side Scaling RSS Processor count currently maxes out at 16 // Ensure shifted value is at least one
// would be better to check the NIC's current hardware queues; but xplat... return 1;
return 16; }
if (threadCount > 16)
{
// Receive Side Scaling RSS Processor count currently maxes out at 16
// would be better to check the NIC's current hardware queues; but xplat...
return 16;
}
} }
return threadCount; return threadCount;