Informix DBA Survival Guide, Second Edition

Monitoring Virtual Processors

Onstat -g sch Print VP Scheduler Statistics

This command gives scheduling statistics about the individual virtual processors in the Informix instance.

$ onstat -g sch
Informix Dynamic Server Version 7.30.UC3   -- On-Line -- Up 2 days 22:12:27 -- 18464 Kbytes
VP Scheduler Statistics:
 vp    pid       class       semops    busy waits  spins/wait
 1     825       cpu         0         0           0
 2     826       adm         0         0           0
 3     827       lio         0         0           0
 4     828       pio         0         0           0
 5     829       aio         0         0           0
 6     830       msc         0         0           0
 7     831       aio         0         0           0
 8     833       aio         0         0           0
 9     834       aio         0         0           0
 10    835       aio         0         0           0
 11    836       aio         0         0           0
 12    837       aio         0         0           0
 13    838       aio         0         0           0
 14    839       aio         0         0           0
 15    840       aio         0         0           0
 16    841       aio         0         0           0
 17    842       aio         0         0           0
 18    843       aio         0         0           0
 19    844       aio         0         0           0
 20    845       aio         0         0           0
 21    846       aio         0         0           0
 22    847       aio         0         0           0
 23    848       aio         0         0           0

When a CPU VP ...