“query end” step very long at random times

Question

I\'m benchmarking a web application, and I have a problem that occurs on about 1% of my queries, mostly UPDATES (but also sometimes INSERT). I did a profiling on those reque

Answer 1

Issue solved by adding

innodb_flush_log_at_trx_commit = 0

in the /etc/my.cnf

There is an interlocking problem when multiple threads want to write the file at the same time, this way the log will be flushed every second.