[HttpCache] Add a waiting trace when finding the cache locked
#60498
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OskarStark
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May 21, 2025
src/Symfony/Component/HttpKernel/Tests/HttpCache/HttpCacheTestCase.php
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…Case.php Co-authored-by: Oskar Stark <oskarstark@googlemail.com>
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This adds a new
waitingtrace that will be recorded by theHttpCachewhen the cache had to wait for another, concurrent request to the same resource to finish first.The information can be used for profiling - a high rate of
waitingrequests means there is a lot of concurrency, so that it might be beneficial to either speed up request processing or consider usingstale-while-revalidate.