Alcatel-Lucent 5620 Troubleshooting Manual page 239

4
Heading
CPU
minf
mjf
xcal
intr
ithr
csw
icsw
migr
smtx
(1 of 2)
Alcatel-Lucent 5620 Service Aware Manager, Release
3HE 05723 AAAD TQZZA Edition 01
Use the UNIX utility mpstat command to further review the activities performed
by the CPU.
i Type:
mpstat time ↵
where time is the interval, in seconds, that is monitored by the mpstat command
The time interval should be at least 10 s. An interval of more than 60 s may
have an effect on applications because of the amount of time the system
spends collecting mpstat data.
ii Review the mpstat output.
The following shows a sample mpstat output. See Table
of the report.
CPU minf mjf xcal
usr sys wt idl
0 1 0 5529
95 5 0 0
1 1 0 220
4 0 0
4 0 0 27
1 0 0
5 1 0 160
87 8 0 5
Table 8-1 mpstat report description
Description (events per second unless noted)
Processor identification
Minor faults
Major faults
Interprocessor cross-calls
Interrupts
Interrupts as threads (not counting clock interrupts)
Context switches
When the csw number slowly increases and the platform is not I/O bound,
a mutex contention is indicated
Involuntary context switches
When the iscw number increases beyond 500, the system is considered to
be under heavy load
Thread migrations to another processor
Spins on mutexes (lock not acquired on first try)
if the smtx number increases sharply, for instance from 30 to 300, a system
resource bottleneck is indicated
Troubleshooting Guide
8 — Troubleshooting Solaris and Windows platforms
intr ithr csw icsw migr smtx
442 302 419 166
237 100 383 161
192 100 178 94
255 100 566 202
8.0 R4 Aug 2010
8-1 for a description
srw syscl
12 196 0 775
41 95 0 450
38 44 0 100
28 162 0 1286
96
99
8-3