[Caching] remove one additional interface call and a branch #1603
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This is a very tiny improvement that gives... +1-2k RPS
The
Get<T>method is an extension method that usesIMemoryCacheinterface:https://github.com/dotnet/runtime/blob/69d61271f900afd7ae6dea7f0c5e57d43090f9dd/src/libraries/Microsoft.Extensions.Caching.Abstractions/src/MemoryCacheExtensions.cs#L18-L21
By using
MemoryCache.TryGetValueinstead, we remove one interface method invocation and a branch