Reduce SQL timings in Projects::MergeRequestsController#show.json
The controller Projects::MergeRequestsController#show.json
is one of our most frequently requested controllers with a 99th percentile (of SQL query timings) above 200 milliseconds. According to our daily overview the statistics are as follows:
- 1 million requests per 12 hours
- 7.0% of the request time is spent in SQL
SQL timings per request:
- Mean: 86.01 ms
- 95th percentile: 148.03 ms
- 99th percentile: 214.89 ms
This controller should be improved so that the 99th percentile is consistently below 200 milliseconds. The ideal target would be a p99 between 100 and 150 milliseconds (I doubt we'll be able to get it lower).
Edited by Yorick Peterse