Re: Performance on Windows and IIS

On Tuesday, 15 December 2020 at 17:34:12 UTC, Thorsten Schöning wrote:
> Guten Tag Deano LF, 
> am Dienstag, 15. Dezember 2020 um 17:10 schrieben Sie:
> > I am running version 5.1.2 on Windows Server 2016 and have adequate 
> > resources (cpu etc) available which do not go near 100% utilisation.
> 5.1.2 is a development version and might simply suffer form arbitrary 
> bugs in your setup, you shouldn't use it unless you are VERY sure to 
> know what you are doing. 
> 
> Besides that, did you already have a look at how Bugzilla sends mails? 
> Or differently asked: During which operations exactly you have noticed 
> a bottleneck or things to be slow? 
> 
> There are multiple possible bottlenecks with Bugzilla, but one common 
> is that sending mails is done synchronously whenever the current user 
> did something which requires sending mails. Depending on your mail 
> setup, this might simply take some time after e.g. creating new bugs, 
> adding comments, changing CCs etc. 
> 
> OTOH, when loading bugs is "slow" already, the problem is most likely 
> with always needing to load, compile etc. Perl files per request. In 
> those cases things should be as fast as your CPU and I/O is and you 
> should see spikes in CPU usage, because e.g. compiling Perl is 
> somewhat CPU-intensive. If you don't see those spikes, have a look at 
> your I/O, because loading Perl packages involves looking into the file 
> system for files being available at various different places. 
> 
> Additionally keep some AV-scanner like Defender in mind, which might 
> slow down things additionally.
> > I have also heard that fastcgi could help improve performance but I 
> > am not sure how to go about configuring this.
> Not sure if FastCGI is properly supported by Bugzilla, though mod_perl 
> is in theory on Linux and with Apache HTTPd. I have mod_perl running 
> in general under Windows with HTTPd as well, but your are out of luck 
> most likely with IIS. 
> 
> In general, Windows+IIS is somewhat the baddest combination you could 
> have chosen for Bugzilla. :-) No mod_perl because of IIS, missing Perl 
> packages for e.g. Daemon::Generic to support sending mails in the 
> background etc. 
> 
> > use_mailer_queue 
> 
> https://bugzilla.readthedocs.io/en/5.0/administering/parameters.html#email 
> 
> You should REALLY reconsider your setup, even though I'm using and 
> somewhat liking Windows most of the times. If mail sending is your 
> bottleneck, you need something like a local queue to speed things up. 
> 
> Mit freundlichen Grüßen, 
> 
> Thorsten Schöning 
> 
> -- 
> Thorsten Schöning E-Mail: [email protected] 
> AM-SoFT IT-Systeme http://www.AM-SoFT.de/ 
> 
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Hi Thorsten,

Thanks for the reply and information. 
I think we will review this installation going forward and will take onboard your advice.

Regards
Deano
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