Issues with Redis cache Performance

Shashank Juyal 1 Reputation point Microsoft Employee
2021-09-20T06:40:14.897+00:00

A customer is using Azure Redis cache and seem to be facing performance issues. They have around 700 Client connections concurrently and are hosted on Redis Cache P1 Tier. The session id has a time out of 200 Mins. Typically P1 can support around 7500 connections on P1.

They are hitting 100% of their limit quite easily. for example,

Premium P1 can have up to 7500 connections, so their 443 connections were very far way of the limit.
From Azure Cache for Redis performance documentation, we can see the limit of SSL requests is 172000/sec, and we can see in their case the number of operations was 19.66K operations/sec

Any suggestions or guidance on what could probably be leading to this would be really helpful

Azure Cache for Redis
Azure Cache for Redis
An Azure service that provides access to a secure, dedicated Redis cache, managed by Microsoft.
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