Whats so difficult about ISSU

Pete Lumbis alumbis at gmail.com
Sat Nov 10 01:24:35 UTC 2012


> So each IOSd process 'show proc cpu' are separate threads to linux?
Yep. The "show platform software..." commands are used to look at things in
software, outside of IOSd. Don't get me started on how absurd the command
lengths are.


===========================
ASR#show proc cpu
CPU utilization for five seconds: 0%/0%; one minute: 0%; five minutes: 0%
 PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process
   1           2          16        125  0.00%  0.00%  0.00%   0 Chunk
Manager
   2       12446      402522         30  0.00%  0.00%  0.00%   0 Load Meter
   3        2927       97933         29  0.00%  0.00%  0.00%   0 CDP
Protocol
....

ASR#show platform software process list rp active
Name                     Pid    PPid  Group Id  Status    Priority  Size
------------------------------------------------------------------------------
init                       1       0         1  S               20  2207744
kthreadd                   2       0         0  S               15  0
ksoftirqd/0                3       2         0  S               15  0
watchdog/0                 4       2         0  S       4294967196  0
events/0                   5       2         0  S               15  0
khelper                    6       2         0  S               15  0
netns                      9       2         0  S               15  0
linux_iosd-imag        26181   24860     26181  R               20
2010271744
.....

ASR#show plat soft proc slot rp active monitor cycles 5
top - 17:14:45 up 23 days,  7:15,  0 users,  load average: 0.10, 0.11, 0.09
Tasks: 126 total,   2 running, 124 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.8%us,  3.0%sy,  0.0%ni, 95.1%id,  0.0%wa,  0.0%hi,  0.1%si,
0.0%st
Mem:   3874968k total,  1760588k used,  2114380k free,   129520k buffers
Swap:        0k total,        0k used,        0k free,  1122644k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
25395 root      20   0 26784  15m  13m S  9.8  0.4 288:48.06 imand
23350 root      20   0 28004  11m 8628 S  5.9  0.3 219:03.66 cmand
13631 root      20   0  2648 1148  884 R  2.0  0.0   0:00.01 top
26181 root      20   0 1917m 406m 143m R  2.0 10.7 365:07.12 linux_iosd-imag
28395 root      20   0  101m  90m 6328 S  2.0  2.4  13:08.97 smand
    1 root      20   0  2156  640  552 S  0.0  0.0   0:04.66 init
===========================



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