Forum OpenACS Development: Re: File Storage Archive download locks up the server

Posted by Andrew Piskorski on
Matthew, that doesn't sound normal. Yes, using 'nice zip' may help (and you can certainly try it), but whether it helps or not probably depends on why the zip processes is slowing everything down.

What resource is the zip command using up? CPU, disk, memory? Does running a zip command manually at the command line have the same effect? Some tools to help you figure that out: dstat, iostat (part of the sysstat package in Debian/Ubuntu), top, vmstat, mpstat.

My wild guess is that your zip command is tying up your disk I/O rather than your cpu, as in my experience, that is more likely to cause obvious system-wide lag.