- what kernel do you run? - is it binary one from openvz.org or compiled by yourself? (please provide .config then) - cat /proc/cpuinfo from host please - can you also provide output of top (then press '1') during the renderer working in VE
Thanks, Kirill Ian P. Christian wrote: > Hi all, > > A friend recently wanted to do some rendering, so I setup him up a VPS > quickly on an idle machine for him to render on.... however - it didn't > go so well. > > Here's the output of dstat with the rendering goign on in VE0 (the host). > > > ----total-cpu-usage---- -disk/total -net/total- ---paging-- ---system-- > usr sys idl wai hiq siq|_read write|_recv _send|__in_ _out_|_int_ _csw_ > 17 1 82 0 0 0| 22k 637k| 0 0 | 0 0 | 236 948 > 54 0 46 0 0 0| 0 0 |2773B 4860B| 0 0 | 126 818 > 61 3 36 0 0 0| 0 16k| 596B 360B| 0 0 | 141 759 > 77 1 22 0 0 0| 0 0 |2835B 4840B| 0 0 | 118 707 > 81 1 18 0 0 0| 0 80k| 0 0 | 0 0 | 124 747 > > > As you can see, it's using most of the CPU (there's 2 hyperthreading > xeons in this machine), and all is well. The render completes in about > 30 minutes. > > > However... here's what happens when I run ths render inside a VE > ----total-cpu-usage---- -disk/total -net/total- ---paging-- ---system-- > usr sys idl wai hiq siq|_read write|_recv _send|__in_ _out_|_int_ _csw_ > 18 1 81 0 0 0| 22k 626k| 0 0 | 0 0 | 234 971 > 2 0 98 0 0 0| 0 0 |2675B 4500B| 0 0 | 120 11k > 0 0 99 0 0 0| 0 16k| 0 0 | 0 0 | 126 12k > 2 0 98 0 0 0| 0 0 |1999B 3730B| 0 0 | 121 9010 > 1 0 99 0 0 0| 0 16k| 0 0 | 0 0 | 125 11k > 1 0 99 0 0 0| 0 0 |1935B 3730B| 0 0 | 116 10k > > > Notice the stupidly high number of context switches (last column). The > render on the VE is estimated to take about 10 times longer... > > # in=spaceinvader.flam3 format=png transparency=false prefix="renderc" > verbose=1 flam3-render > Automatically detected 4 core(s)... > chaos: 0.5% ETA: 286.5 minutes > > > Can anyone suggest why this is? > > _______________________________________________ Users mailing list [email protected] https://openvz.org/mailman/listinfo/users
