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I'd second that. Things may have changed recently, but historically, Linux hasn't been a great platform for mail servers because of the file system semantics
by terra_t 16y ago
I'd second that. Things may have changed recently, but historically, Linux hasn't been a great platform for mail servers because of the file system semantics. (Linux systems can get very ~weird~ under heavy email loads, kinda the way that Windows systems get ~weird~ in everyday desktop operations.)
Solaris is very good, and the x-BSDs often do better if you're a free software fanatic.
- mhansen 16y agoI don't understand. Can you elaborate on what you mean by 'weird' and why the BSD's do better?
- terra_t 16y agoIt has to do with the way fsync works and metadata updates on directories. Linux does a lot more work updating directories, which hurts performance on mail servers in general but really hurts with qmail. Practically you might find your CPU utilization is 2%, but the load average is 50 and you do 'ls' on a directory that has 20 files in in it and it takes 30 seconds.
- njharman 16y agoHuh, thanks! Now I finally know why the hell that happened.