[asterisk-users] Expert to work on load issue

[Dovid Bender]

Hi,

Sorry in advance that I am emailing the users list and not the biz list I
think I will find my target audience here. We are looking to hire a
consultant to help us figure out an issue. We are having what seems are
"random load" issues with bare metal boxes that are dedicated to Asterisk
and a few Perl AGI's. We went after all the usual suspects (CPU IDLE,
memory usage etc.). I wrote the simple bash script below to show me total
calls and CPU usage of Asterisk
#! /bin/bash

for i in {1..50}
do
        CALLS=$(asterisk -rx'core show calls' | head -n 1 | awk '{print
$1}')
        CPU=$(top -b -n 1 | grep $(pidof asterisk) | awk '{print $9}')
        echo "CPU USAGE $CPU Active calls $CALLS"
done

And this was the output:
[root at a30 ~]# /tmp/x.sh
CPU USAGE 231.2 Active calls 391
CPU USAGE 188.2 Active calls 392
CPU USAGE 658.8 Active calls 392
CPU USAGE 211.8 Active calls 389
CPU USAGE 470.6 Active calls 391
CPU USAGE 841.2 Active calls 390
CPU USAGE 694.1 Active calls 388
CPU USAGE 223.5 Active calls 387
CPU USAGE 237.5 Active calls 394
CPU USAGE 517.6 Active calls 397
CPU USAGE 643.8 Active calls 397
CPU USAGE 211.8 Active calls 397
CPU USAGE 470.6 Active calls 397
CPU USAGE 217.6 Active calls 403
CPU USAGE 452.9 Active calls 406
CPU USAGE 200.0 Active calls 403
CPU USAGE 462.5 Active calls 403
CPU USAGE 206.2 Active calls 402
CPU USAGE 452.9 Active calls 404
CPU USAGE 211.8 Active calls 405
CPU USAGE 206.2 Active calls 405
CPU USAGE 452.9 Active calls 406
CPU USAGE 458.8 Active calls 406
CPU USAGE 200.0 Active calls 406
CPU USAGE 458.8 Active calls 405
CPU USAGE 188.2 Active calls 404
CPU USAGE 470.6 Active calls 405
CPU USAGE 200.0 Active calls 403
CPU USAGE 194.1 Active calls 403
CPU USAGE 506.2 Active calls 402
CPU USAGE 188.2 Active calls 400
CPU USAGE 468.7 Active calls 399
CPU USAGE 212.5 Active calls 396
CPU USAGE 188.2 Active calls 398
CPU USAGE 337.5 Active calls 397
CPU USAGE 805.9 Active calls 399
CPU USAGE 212.5 Active calls 398
CPU USAGE 700.0 Active calls 400
CPU USAGE 200.0 Active calls 398
CPU USAGE 211.8 Active calls 401
CPU USAGE 231.2 Active calls 402
CPU USAGE 206.2 Active calls 402
CPU USAGE 217.6 Active calls 403
CPU USAGE 1081 Active calls 403
CPU USAGE 258.8 Active calls 404
CPU USAGE 537.5 Active calls 407
CPU USAGE 1106 Active calls 410
CPU USAGE 617.6 Active calls 410
CPU USAGE 494.1 Active calls 410
CPU USAGE 1200 Active calls 408
[root at a30 ~]#

The above is with Asterisk 11.25

I am *assuming* that the load issue is being caused by the spikes generated
by Asterisk. Below is the output of a different Asterisk system not running
any AGI's. It is running Asterisk 16.

CPU USAGE 61.1 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 633.3 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 72.2 Active calls 81
CPU USAGE 61.1 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 82
CPU USAGE 66.7 Active calls 82
CPU USAGE 70.6 Active calls 82
CPU USAGE 70.6 Active calls 82
CPU USAGE 61.1 Active calls 82
CPU USAGE 70.6 Active calls 82
CPU USAGE 66.7 Active calls 82
CPU USAGE 70.6 Active calls 82
CPU USAGE 70.6 Active calls 82
CPU USAGE 66.7 Active calls 82
CPU USAGE 70.6 Active calls 82
CPU USAGE 64.7 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 64.7 Active calls 81
CPU USAGE 64.7 Active calls 81
CPU USAGE 61.1 Active calls 81
CPU USAGE 64.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 64.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 1029 Active calls 81
CPU USAGE 66.7 Active calls 80
CPU USAGE 70.6 Active calls 80
CPU USAGE 66.7 Active calls 80
CPU USAGE 70.6 Active calls 80
CPU USAGE 66.7 Active calls 80
CPU USAGE 64.7 Active calls 80
CPU USAGE 64.7 Active calls 80
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 64.7 Active calls 81
CPU USAGE 61.1 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 61.1 Active calls 81
CPU USAGE 61.1 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 66.7 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 64.7 Active calls 81
CPU USAGE 61.1 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 70.6 Active calls 81
CPU USAGE 61.1 Active calls 81
CPU USAGE 947.1 Active calls 81
CPU USAGE 64.7 Active calls 81
CPU USAGE 61.1 Active calls 81

TIA.

Dovid
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