In one of my projects I used run_erl to launch Erlang VM in daemon mode, rotate logs, etc. If seemed fine to use standard Erlang tool. run_erl is a part of Erlang distribution.
I discovered unexpected performance problem running production application with run_erl. Application caused high iowait without any reason.
It was hard to discover the certain reason, but after few hours I found out that run_erl fsyncs on every log message, causing inadequate io load.
I discovered unexpected performance problem running production application with run_erl. Application caused high iowait without any reason.
It was hard to discover the certain reason, but after few hours I found out that run_erl fsyncs on every log message, causing inadequate io load.
