On Oct 29, 8:04 am, iain duncan <[EMAIL PROTECTED]> wrote: > Hi y'all, I have client sites deployed on VPS's from slicehost, and have > been really happy with them so far. My only concern is that CP seems to > use a lot of ram. What is a good guideline for how much ram to have per > running cherrypy? > > Will deploying with mod_wsgi change that?
If the memory use comes from the core of CherryPy/TurboGears, then moving to mod_wsgi wouldn't make much difference. Now, are your memory concerns coming from the amount of private process memory (RES) or the amount of virtual memory (VIRT). For some VPS providers the amount of virtual memory can be used in calculations for the Memory Limit of your VPS even when the memory hasn't actually been allocated as physical memory. This can cause problems in Linux where a multithreaded web server is used, as Linux appears to use the process default stack size for any threads created as well. That is, the designated stack size for threads will be 8MB. Have enough threads and this can blow out virtual memory size and you might start hitting your VPS memory limit. Non Linux systems such as MacOS X are a bit more sensible and default to 8MB for main process thread and only 512KB for subsequent threads. So, what do you get if you run the following in your VPS? ulimit -s Also, in Python what do you get if you run: import thread print thread.stack_size() Finally what is your VPS memory limit and what sizes are you getting for RES and VIRT for your web application processes? Do you know how Slicehost calculates the memory limit? Graham --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TurboGears" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/turbogears?hl=en -~----------~----~----~----~------~----~------~--~---
