2008/6/5 Dylan Semler <[EMAIL PROTECTED]>: > On Wed, Jun 4, 2008 at 4:57 PM, Jon Burgess <[EMAIL PROTECTED]> >> The system monitor is a little crude. Most linux systems that have been >> running for any reasonable length of time will show nearly zero free >> memory. This is expected behaviour[1][2]. > > Yeah, I've heard it's crude and that measuring memory usage in Linux is not > as basic as it would seem.
Usage is reasonable, however free memory == wasted memory. It's the OS's job to make sure any available memory is used for something. What you need to monitor is actual process size. > Ahh, perhaps this answers it. 4 gigs of ram is enough for one z5 .meta > tile, but two being rendered at the same time causes swapping. I guess for > some reason I had assumed that if it ran out of memory it would hold off > from rendering new tiles until others were finished to avoid using swap > space. I don't know why I assumed this, it doesn't seem to make sense > (though might it be more efficient this way?). z5 covers a fairly large area, quite possibly it needed to load a large chunk of the database which would use a lot of memory, temporarily at least. Have a nice day, -- Martijn van Oosterhout <[EMAIL PROTECTED]> http://svana.org/kleptog/ _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
