Hi Razvan,
During starting up the opensips service, I see the first opensips
child process (pid"11172) consumes CPU process to 70-80% and
later drop downs to 0.3 - 0.0 % CPU per core. See below;
[root@qorblpsisprxyd1 ~]# top -c -u opensips top - 10:49:54 up 76
days, 23:31, 5 users, load average: 0.00, 0.00, 0.00 Tasks: 229
total, 1 running, 228 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.1%sy, 0.0%ni, 99.9%id, 0.0%wa, 0.0%hi,
0.0%si, 0.0%st Mem: 65964364k total, 2568124k used, 63396240k
free, 180220k buffers Swap: 1023996k total, 0k used,
1023996k free, 1226104k cached PID USER PR NI VIRT
RES SHR S %CPU %MEM TIME+ COMMAND 11177 opensips 20 0
165m 5696 4528 S 0.3 0.0 0:00.23 /usr/sbin/opensips -P
/var/run/opensips.pid -m 64 -u opensips -g opensips 11187
opensips 20 0 165m 5628 4460 S 0.3 0.0 0:00.41
/usr/sbin/opensips -P /var/run/opensips.pid -m 64 -u opensips -g
opensips 11166 opensips 20 0 165m 6892 5752 S 0.0 0.0
0:00.23 /usr/sbin/opensips -P /var/run/opensips.pid -m 64 -u
opensips -g opensips 11168 opensips 20 0 165m 1980 840 S
0.0 0.0 0:00.00 /usr/sbin/opensips -P /var/run/opensips.pid -m
64 -u opensips -g opensips 11169 opensips 20 0 165m 1464 328
S 0.0 0.0 0:00.53 /usr/sbin/opensips -P /var/run/opensips.pid
-m 64 -u opensips -g opensips 11171 opensips 20 0 165m 1640
504 S 0.0 0.0 0:00.15 /usr/sbin/opensips -P
/var/run/opensips.pid -m 64 -u opensips -g opensips 11172
opensips 20 0 166m 40m 38m S 0.0 0.1 0:02.61
/usr/sbin/opensips -P /var/run/opensips.pid -m 64 -u opensips -g
opensips 11174 opensips 20 0 165m 6304 5136 S 0.0 0.0
0:00.24 /usr/sbin/opensips -P /var/run/opensips.pid -m 64 -u
opensips -g opensips 11175 opensips 20 0 165m 5884 4716 S
0.0 0.0 0:00.22 /usr/sbin/opensips -P /var/run/opensips.pid -m
64 -u opensips -g opensips 11179 opensips 20 0 165m 7660 6492
S 0.0 0.0 0:00.27 /usr/sbin/opensips -P /var/run/opensips.pid
-m 64 -u opensips -g opensips 11181 opensips 20 0 165m 7756
6588 S 0.0 0.0 0:00.33 /usr/sbin/opensips -P
/var/run/opensips.pid -m 64 -u opensips -g opensips 11183
opensips 20 0 165m 5520 4352 S 0.0 0.0 0:00.34
/usr/sbin/opensips -P /var/run/opensips.pid -m 64 -u opensips -g
opensips 11185 opensips 20 0 165m 7336 6168 S 0.0 0.0
0:00.36 /usr/sbin/opensips -P /var/run/opensips.pid -m 64 -u
opensips -g opensips 11189 opensips 20 0 165m 7320 6152 S
0.0 0.0 0:00.36 /usr/sbin/opensips -P /var/run/opensips.pid -m
64 -u opensips -g opensips 11190 opensips 20 0 165m 4688 3528
S 0.0 0.0 0:00.30 /usr/sbin/opensips -P /var/run/opensips.pid
-m 64 -u opensips -g opensips
[root@qorblpsisprxyd1 ~]# opensipsctl fifo ps Process:: ID=0
PID=11166 Type=attendant Process:: ID=1 PID=11168 Type=MI FIFO
Process:: ID=2 PID=11169 Type=time_keeper Process:: ID=3
PID=11171 Type=timer Process:: ID=4 PID=11172 Type=SIP receiver
udp:10.3.120.94:5060 <http://10.3.120.94:5060> Process:: ID=5
PID=11174 Type=SIP receiver udp:10.3.120.94:5060
<http://10.3.120.94:5060> Process:: ID=6 PID=11175 Type=SIP
receiver udp:10.3.120.94:5060 <http://10.3.120.94:5060>
Process:: ID=7 PID=11177 Type=SIP receiver udp:10.3.120.94:5060
<http://10.3.120.94:5060> Process:: ID=8 PID=11179 Type=SIP
receiver udp:10.3.120.94:5060 <http://10.3.120.94:5060>
Process:: ID=9 PID=11181 Type=SIP receiver udp:10.3.120.94:5060
<http://10.3.120.94:5060> Process:: ID=10 PID=11183 Type=SIP
receiver udp:10.3.120.94:5060 <http://10.3.120.94:5060>
Process:: ID=11 PID=11185 Type=SIP receiver udp:10.3.120.94:5060
<http://10.3.120.94:5060> Process:: ID=12 PID=11187 Type=SIP
receiver udp:10.3.120.94:5060 <http://10.3.120.94:5060>
Process:: ID=13 PID=11189 Type=SIP receiver udp:10.3.120.94:5060
<http://10.3.120.94:5060> Process:: ID=14 PID=11190 Type=Timer
handler OpenSIPs used by each CPU processor;
[root@qorblpsisprxyd1 ~]# ps -o pid,psr,comm -C opensips PID
PSR COMMAND 11166 0 opensips 11168 2 opensips 11169 6
opensips 11171 5 opensips 11172 5 opensips 11174 5 opensips
11175 5 opensips 11177 5 opensips 11179 7 opensips 11181
1 opensips 11183 0 opensips 11185 2 opensips 11187 5
opensips 11189 5 opensips 11190 4 opensips