Hey,

It doesn't look like "daemon" mode. It looks like you used "morbo" to start 
the application.


On Wednesday, June 14, 2017 at 11:11:31 PM UTC+2, Charlie Brady wrote:
>
>
> I'm running a Mojolicious UI in daemon mode on a PowerPC embedded system 
> (running Wind River Linux, perl 5.22.0, kernel 4.1.21) and notice 
> surprisingly high CPU usage on a totally idle UI. 
>
> I can see that there are two processes. Each process is in a polling loop 
> with 10ms timeout. I don't expect to see two processes here, so I wonder 
> whether this is normal or abnormal behaviour. If it is normal behaviour, 
> can I tune down the 10ms timeout to something longer? I would like to see 
> the process block until there is actual work to do. 
>
> root@10:/service# ps fax | grep index.daemon-5 
>  1418 pts/1    S+     0:00      \_ grep index.daemon 
> 19303 ?        Ssl   24:24 /etc/e-smith/web/functions/index.daemon.cgi 
> 24397 ?        Ssl   20:54  \_ /etc/e-smith/web/functions/index.daemon.cgi 
> root@10:/service# strace -p19303 -tt 2>&1 | head -5 
> Process 19303 attached 
> 17:05:08.095154 restart_syscall(<... resuming interrupted call ...>) = 0 
> 17:05:08.104465 poll([{fd=21, events=POLLIN|POLLPRI|POLLOUT}], 1, 9) = 0 
> (Timeout) 
> 17:05:08.116478 poll([{fd=21, events=POLLIN|POLLPRI|POLLOUT}], 1, 10) = 0 
> (Timeout) 
> 17:05:08.130120 poll([{fd=21, events=POLLIN|POLLPRI|POLLOUT}], 1, 9) = 0 
> (Timeout) 
> root@10:/service# strace -p24397 -tt 2>&1 | head -5 
> Process 24397 attached 
> 17:05:12.888643 restart_syscall(<... resuming interrupted call ...>) = 0 
> 17:05:12.894814 poll([{fd=21, events=POLLIN|POLLPRI|POLLOUT}], 1, 10) = 0 
> (Timeout) 
> 17:05:12.908082 poll([{fd=21, events=POLLIN|POLLPRI|POLLOUT}], 1, 10) = 0 
> (Timeout) 
> 17:05:12.920771 poll([{fd=21, events=POLLIN|POLLPRI|POLLOUT}], 1, 10) = 0 
> (Timeout) 
> root@10:/service# top | head -12 
> top - 17:09:31 up 9 days,  7:59,  4 users,  load average: 0.73, 0.59, 0.60 
> Tasks:  98 total,   1 running,  95 sleeping,   0 stopped,   2 zombie 
> %Cpu(s): 12.9 us,  5.7 sy,  3.8 ni, 75.7 id,  1.8 wa,  0.0 hi,  0.1 si,   
> 0.0 st 
> KiB Mem :   995536 total,     5428 free,   317100 used,   673008 
> buff/cache 
> KiB Swap:    65532 total,    65448 free,       84 used.   594360 avail Mem 
>
>   PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND 
>                   
>  1440 root      20   0    3852   2280   1924 R 24.0  0.2   0:00.13 top     
>                   
>   508 root      20   0  134908  69156  13896 S 12.0  6.9 465:50.05 
> call_control             
> 19303 root      20   0   87812  37720   4148 S  8.0  3.8  24:45.37 
> /etc/e-smith/we           
> 24397 root      20   0   87788  37184   3552 S  8.0  3.7  21:13.65 
> /etc/e-smith/we           
>   425 root      20   0   16068  10284   3640 S  4.0  1.0  33:32.22 snmpd   
>                   
>

-- 
You received this message because you are subscribed to the Google Groups 
"Mojolicious" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/mojolicious.
For more options, visit https://groups.google.com/d/optout.

Reply via email to