[erlang-questions] Test the system bottlenecks

Solomon <>
Mon Sep 17 12:38:13 CEST 2012


I test a web server run on a 24-core server. When server get a message, it
would read/write mnesia and return a message to client. All of the mnesia
tables are ram_copies and disc_copies.
I do a stress test and found that the heighest value of cpu load is only
900%, I get I/O load by iostat and it is idle, so I guess the system
bottleneck is mnesia, but I found the reductions counter of mnesia's
process are low.
Is my guess right?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20120917/230023a5/attachment.html>


More information about the erlang-questions mailing list