test

System Administration Guide: Advanced Administration

Example—Checking Buffer Activity

The following abbreviated example of sar -b output shows that the %rcache and %wcache buffers are not causing any slowdowns. All the data is within acceptable limits. 


$ sar -b
SunOS venus 5.9 Generic sun4u    06/24/2001

00:00:00 bread/s lread/s %rcache bwrit/s lwrit/s %wcache pread/s pwrit/s
01:00:00       0       0     100       0       0      55       0       0
02:00:02       0       0     100       0       0      55       0       0
03:00:00       0       0     100       0       0      72       0       0
04:00:00       0       0     100       0       0      56       0       0
05:00:01       0       0     100       0       0      55       0       0
06:00:00       0       0     100       0       0      55       0       0

Average        0       0      94       0       0      64       0       0