Spring-cloud-sleuth: Resonable sleuth overhead

[tony-clarke-amdocs]

Understandably enabling sleuth on a spring boot application will add some additional overhead. The question, is what is reasonable overhead. Enabling sleuth (2.1.1) on Spring Cloud Gateway 2.1.1 seems to slow down request processing times by around 20 to 40%. Is this in the expected range? Note, this is much better than Spring Cloud Gateway 2.0.x where the performance was 500% slower (this was a known issue in reactive).

@spencergibb

[codefromthecrypt]

I wonder if there's a way to get to the same page with this. For example, if you can make a sample app, and perhaps use a tool like wrk to show the before/after? Not sure if this one helps or not https://github.com/openzipkin/sleuth-webmvc-example

[tony-clarke-amdocs]

Thanks, probably can do that. Will get back to you.

[spring-projects-issues]

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[tony-clarke-amdocs]

I will provide repo which shows performance issue. Just hang on a few days :)

[marcingrzejszczak]

@tony-clarke-amdocs any progress on this?

[tony-clarke-amdocs]

@marcingrzejszczak It's on my todo list. I have not forgotten about it. I plan to do it in coming weeks.

[marcingrzejszczak]

Ok so I'll close it until then. If you have anything to show us, we'll reopen it.

[rgarciapariente]

We have an example that may be useful.
We have used Spring Cloud Gateway to check the impact of Sleuth. In our tests the average time with Sleuth is 77% worse than without.
The repository with the test performed is: https://github.com/rgarciapariente/test-perf-sleuth
We simply compared a Spring Cloud Gateway against a test micro. In one case, Spring Cloud Gateway includes Sleuth and another does not.
I hope this can be helpful.

[marcingrzejszczak]

That's a duplicate of https://github.com/spring-cloud/spring-cloud-sleuth/issues/1397