HP WebQos Peak for Solaris® Concepts and Operation Guide

20 Chapter3
Configuring HP WebQoS Peak
Configuring HP WebQoS
To calculate the load threshold, do the following:
1. Run the top command. Note the load average that is listed first and
the percentage listed next to idle.
Example 3-1 Sample Output from the top Command
last pid: 12057; load averages: 0.04, 0.02, 0.02 15:04:30
91 processes: 88 sleeping, 2 stopped, 1 on cpu
CPU states: 99.1% idle, 0.3% user, 0.4% kernel, 0.2% iowait, 0.0% swap
Memory: 256M real, 78M free, 4648K swap in use, 253M swap free
PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
12057 root 1 21 0 1424K 1240K cpu1 0:00 0.39% top
Response Time The maximum amount of time, in seconds, it takes for the
server to respond to a request. Can be used with load to control
session admission.
If the average server response time is less than the specified
threshold, all sessions are admitted. If the average server
response time is equal to or greater than the specified
threshold, no new sessions are admitted. Only requests that are
part of a current session are processed.
When a new session is not admitted, a corrective action is
taken.
The average server response time is based on the server’s
response times to all requests admitted during the last two
minutes. The average server response time is recalculated
every 15 seconds.
Reject All
Sessions
The amount of time, in seconds, that elapses before the system
rejects all remaining sessions. All new sessions are
immediately rejected.
The "Server Temporarily Unavailable" page is served to all
rejected sessions.
Table 3-1 HP WebQoS Peak Configurable Parameters: Admission Control
Parameter Description