Performance Issues when using SignalR

Crystal Rouse
Crystal Rouse used Ask the Experts™
on
I am trying to troubleshoot performance issues we are having.  We use SignalR to provide real time data from our SQL Database on several pages throughout our site.  Any page that contains a lot of data seems to cause this problem.

Server logs show our processor utilization for our site's app pool was throttled extensively throughout the day yesterday and this morning.  Our SQL Server processor utilization has also ramped up and processing batch requests of 1400 - 1600 per seconds.  

I need suggestions on how to troubleshoot our performance issues.
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Chief Technology Ninja
Distinguished Expert 2018
Commented:
Hi Crystal,

When it comes to SignalR there can be many things which we have to consider. For example, number of users, connection, design, message size etc.

I would recommend that you try the following suggestions from Microsoft first: https://docs.microsoft.com/en-us/aspnet/signalr/overview/performance/signalr-performance

Regards,
Chinmay.

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