On 13.11.12 15:02, Stephen Deasey wrote: > On Tue, Nov 13, 2012 at 11:18 AM, Gustaf Neumann <neum...@wu.ac.at> wrote: >> minthreads = 2 >> >> creating threads, when idle == 0 >> 10468 requests, connthreads 267 >> total cputime 00:10:32 >> >> creating threads, when queue >= 5 >> requests 10104 connthreads 27 >> total cputime 00:06:14 > What if you set minthreads == maxthreads? The number of thread create operations will go further down. When running already at minthreads, the connection thread timeout is ignored (otherwise there would be a high number of thread create operations just after the timeout expires to ensure minthreads running connection threads). With connsperthread == 1000, there will be about 10 thread create operations for 10000 requests (not counting the 2 initial create operation during startup for minthreads == 2). So, the cpu consumption will be lower, but the server would not scale, when the requests frequency would require more connection threads. Furthermore, there will be most likely more requests put into the queue instead of being served immediately.
When we assume, that with minthreads == maxthreads == 2 there won't be more than say 20 requests queued, a similar effect could be achieved by allowing additional thread creations for more than 20 requests in the queue. Or even more conservative, allowing thread creations only when the request queue is completely full (setting the low water mark to 100%) would as well be better than minthreads == maxthreads, since the server will at least start to create additional threads in this rather hopeless situation, where with minthreads == maxthreads, it won't. ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ naviserver-devel mailing list naviserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/naviserver-devel
