[Spce-user] CPU spike when navigating UI?

Fri Apr 10 02:26:40 EDT 2015

That's and under-powered-system situation ... could be that you are running the SCPE on a system without the enought resources ... or could be the 'maniatic' collecd eating all the CPU, I seen that on various SPCE installations.

Take a look at the output of the top command and see who is eating the CPU.

----- Mensaje original -----
> De: "Dustin Rollins" <dustin at npinfo.com>
> Para: "Alex Lutay" <alutay at sipwise.com>, spce-user at lists.sipwise.com
> Enviados: Viernes, 10 de Abril 2015 6:00:20
> Asunto: Re: [Spce-user] CPU spike when navigating UI?

> After Kalen (my co-worker) wrote this the system appeared to return to normal
> operation, fairly quick and responsive.
> 
> Today we experienced an issue where calls were failing.  Upon logging in to the
> web interface the performance was extremely poor.   I did a little
> troubleshooting and found that at the bottom of 'dmesg' output we had a line
> that read:
> 
> [sched_delayed] sched: RT throttling activated
> 
> After a few moments of googling found posts that would lead me to believe this
> may be effecting the call processing and the Web UI performance.
> 
> Any thoughts or advice would be greatly appreciated.
> 
> Dustin
> 
> 
> 
> -----Original Message-----
> From: Spce-user [mailto:spce-user-bounces at lists.sipwise.com] On Behalf Of Alex
> Lutay
> Sent: Thursday, April 2, 2015 4:50 AM
> To: spce-user at lists.sipwise.com
> Subject: Re: [Spce-user] CPU spike when navigating UI?
> 
> Dear Kalen,
> 
> This is true, Perl-based fast-cgi process "ngcp-panel" is quit heavy.
> We have a plans to optimize it but nothing ready for release yet.
> 
> Feel free to profile it from your side and send pull requests to
> https://github.com/sipwise/ngcp-panel
> 
> Pull requests are welcome! Tnx!
> 
> On 31/03/15 02:17, Kalen Krueger wrote:
>> All of a sudden when we navigate the UI we're seeing CPU spike.
>> Without navigating around the system runs great... but as soon as we do
>> that it spikes.
>>
>> The process that spikes is perl-fcgi by user www-data.
>>
>> iotop shows I/O as very low... we're running with 4GB of RAM.    Thoughts?
> 
> --
> Alexander Lutay
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