Brocade Multi-Service IronWare Administration Guide (Supporting R05.6.00) - Manual (Page 127)

Multi-Service IronWare Administration Guide 109
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Histogram information
5
NOTE
Histogram information is not maintained accross reboot
Displaying CPU histogram information
The CPU histogram provides information about task CPU usage. The CPU histogram is viewed in the
form of buckets i.e., task usage is divided into different interval levels called buckets. For example,
the task run time is divided into buckets – bucket 1(0-50ms), bucket2 (50-100ms), bucket3
(100-150ms) etc. The CPU histogram collects the task CPU usage in each bucket. This includes
how many times a task run/hold time falls in each bucket, max run time and total run time for each
bucket. CPU histogram information is measured for hold-time, wait-time, system timer time, and
user interrupt time of the task.
• Hold time - time that the task is holding the CPU without yield.
• Wait time - time that the task is waiting for execution.
• Timer time – time that task is handling the timer routines without yielding the CPU.
• Interrupt time – time that the task is handling the user interrupt routines without yielding the
CPU.
Show commands
To display task hold time information, enter the following command:
Brocade# show cpu histogram hold
HISTOGRAM CPU HISTOGRAM INFO
----------------------------
No of Bucket : 51
Bucket Granularity : 10 ms
Last cleared at : 2012.07.10-07:29:20.704
No of Task : 67
Task Name Bkt Bkt No of Time HoldTime HoldTime Time
Num Time(ms) Total(s) Max(ms)
---------------------------------------------------------------------------------
ip_rx 1 000-010 4 .000463 .201 2012.07.10-07:29:20.701
vlan 1 000-010 1 .000025 .025 2012.07.10-07:29:20.700
mac_mgr 1 000-010 1 .000010 .010 2012.07.10-07:29:20.701
mrp 1 000-010 1 .000025 .025 2012.07.10-07:29:20.700
erp 1 000-010 1 .000025 .025 2012.07.10-07:29:20.700
mxrp 1 000-010 1 .000009 .009 2012.07.10-07:29:20.700
rtm 1 000-010 1 .000062 .062 2012.07.10-07:29:20.700
rtm6 1 000-010 1 .000091 .091 2012.07.10-07:29:20.700
ip_tx 1 000-010 1 .000207 .207 2012.07.10-07:29:20.700
l2vpn 1 000-010 1 .000018 .018 2012.07.10-07:29:20.701
ospf 1 000-010 1 .000046 .046 2012.07.10-07:29:20.700
isis 1 000-010 1 .000009 .009 2012.07.10-07:29:20.700
mcast 1 000-010 1 .000017 .017 2012.07.10-07:29:20.700
ospf6 1 000-010 1 .000012 .012 2012.07.10-07:29:20.700
mcast6 1 000-010 1 .000012 .012 2012.07.10-07:29:20.700
web 1 000-010 1 .000029 .029 2012.07.10-07:29:20.700
lacp 1 000-010 1 .000013 .013 2012.07.10-07:29:20.700
loop_detect 1 000-010 1 .000009 .009 2012.07.10-07:29:20.701
cluster_mgr 1 000-010 1 .000011 .011 2012.07.10-07:29:20.701
telnet_0 1 000-010 4 .003 3 2012.07.10-07:29:20.672