You 100% right - and still wrong :-)

Posted Apr 3, 2011 14:59 UTC (Sun) by khim (subscriber, #9252)
In reply to: /tmp and /var/tmp by dtlin
Parent article: Introducing /run

Yes, if you're constantly swapping your tmpfs you are slowing everything down. But more often then not it's not the case. 80/20> rules is valid for temporary files too. Most temporary files are accessed rarely, but few are accessed constantly - and they don't ever hit the disk with tmpfs. I know that incremental Chromium build is faster on tmpfs then on real fs if you have beefy system (16GB of RAM, 100GB of temporary files in tmpfs).