Alcatel-Lucent 5620 Troubleshooting Manual page 205

Heading
procs
memory
page
disk
faults
cpu
4
Alcatel-Lucent 5620 Service Aware Manager, Release 6.1 R3
3HE 04244 AAAB Ed. 01
Table 8-3 vmstat report description
Description
Number of processes in each
of the processor states
Virtual and real memory
usage
Page faults and paging
activities in units per second
Number of disk operations per
second
Trap or interrupt rates per
second
Breakdown of percentage
usage of CPU time. On
multiple processor systems,
this is an average for all
processors.
Review the results.
The sr column under the disk heading shows the scan rate. The scan rate is the key
factor because it indicates how often the system scans memory for idle pages to
swap out. When the scan rate is zero, there is no swap problem. The higher the
scan rate, the more time the system is spending copying code and data in and out
of memory.
Check the memory swap and free columns. When there is little or no available free
memory, you need more swap space.
You can add swap space to resolve memory bottleneck problems and improve
performance. Contact your technical support representative for information
about adding new disks to provide the necessary swap space to stop memory
bottlenecks. Perform Procedure
temporary solution.
Check the minimum supported platform size for the software to ensure enough
swap space is allocated.
Troubleshooting Guide
8 — Troubleshooting Solaris and Windows platforms
Subheading
r - in run queue
b - blocked for resources (I/O, paging)
w - runnable but swapped
swap - amount of swap space currently available
(kbytes)
free - size of free space available (kbytes)
re - page reclaim
mf - minor fault
pi - kb paged in
po - kb paged out
fr - kb freed
de - anticipated short-term memory shortfall
(kbytes)
sr - pages scanned by clock algorithms
There are slots for up to four disks, labeled with a
single letter and number. The letter indicates the
types of disk: s = SCSI, i = IP; the number is the
logical unit number.
in - (non-clock) device interrupts
sy - system calls
cs - CPU context switches
us - user time
sy - system time
id - idle time
8-4 to add emergency swap space to provide a
November 2008 8-7