Marco Cagnoli wrote: > I'm using mapnik in combination with tilecache to render off line a map. > My question is about mapnik performance: what seems strange to me is > that I have a 100% usage for cpu while the memory allocation is very low > (20 - 30 MB).
Well if you're doing something CPU intensive then 100% CPU usage is a good thing. I'm also not sure why you expect CPU usage and memory usage to correlate in any way - they are entirely separate things and how much of each resource a program uses will depend on what it is doing and how it does it. > My idea is that mapnik can't load into memory the data files and that > it's reading from the hard disk: it would explain the high cpu usage and > the not so good performance. Quite the opposite - if you were waiting for disk I/O then you wouldn't have 100% CPU usage. The fact that you do tells you that he I/O system is able to provide data fast enough to keep the CPU busy. Tom -- Tom Hughes ([EMAIL PROTECTED]) http://www.compton.nu/ _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
