Hi,
I am working on a performance testing project on informix9.30. There a 20 CPU's allocated to Informix and 20 CPUVPS affinited to them. Also started 8 listner threads for 8 poll threads. When i give onstat -g sch, i found Busywaits 0 for CPUVP 1 and a large number for other CPUVPS. What could be the reason, any idea.

here is the out put..
VP Scheduler Statistics:
vp pid class semops busy waits spins/wait
1 19771 cpu 0 0 0
2 19786 adm 0 0 0
3 19787 cpu 721881 754349 980
4 19788 cpu 656330 687515 978
5 19789 cpu 570334 599706 975
6 19790 cpu 491362 517213 975
7 19791 cpu 443808 466967 976
8 19792 cpu 411922 434212 975
9 19793 cpu 358529 377574 976
10 19794 cpu 312424 330093 975
11 19795 cpu 232868 246891 973
12 19796 cpu 171015 183336 967
13 19797 cpu 115346 124311 965
14 19798 cpu 71072 77341 961
15 19799 cpu 47404 51939 960
16 19800 cpu 30738 33959 957
17 19801 cpu 22732 25085 960
18 19802 cpu 18070 20031 957
19 19803 cpu 15275 16996 957
20 19804 cpu 11989 13380 954
21 19805 cpu 12009 13268 959





bye.