My serveur Dynatrace, is called by many IIS servers. I used .NET SDK.
When i have a high level of request per second. With my APM, I remarks slowdown on IIS the method PerformMultiGet.
For exemple i have a request take 24 second, with 22 second taken by WaitMultiple.
The call stack is :
Enyim.Caching.MemcachedClient.PerformMultiGet
Enyim.Caching.MemcachedClient.SafeWaitAllAndDispose
System.Threading.WaitHandle.WaitAll
System.Threading.WaitHandle.WaitMultiple
It seems coming from high level of usage because it didn’t occured when i have less visit.
To verify that it hasn’t already been addressed in a later version, would you be able to install the latest 1.3.X version of the SDK (1.3.10) and see if your still running into the problem?
Thank you for your reply. I check with the lastest SDK version 1.3.10 in a loadtest context. I have got the same behaviour.
I thought that it’s coming from the agregation time datas from differents nodes when i try to “bulk get”. If one node is slow, all the operation PerformMultiGet is slow
This slowdown may coming from other bottleneck (connection …). In my subject, when it occured, i can see an increase of number connection :