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SIte load process / performance

Superuser
Superuser
Posts: 14,643
Thanks: 5,663
Fixes: 32
Registered: ‎22-08-2007

SIte load process / performance

Of recent times (3 months?) I've noticed that site page loading is not as swift as it used to be.  Most notably I see multiple changes of fonts, often starting with the normal Plusnet fonts, changing through one or more other fonts before finally rendering correctly.  Sometimes these changes do not complete leaving the rendering incorrect.

Capture fonts.JPG

 

The observed behaviour somewhat suggests...

  1. Something is changing the CSS - is that code in the skin?  If yes, why are there multiple sets of conflicting styles?
  2. CSS files are being reloaded on every page load - why are they not set to be cached?
  3. Why does the page sometimes end rendered incorrectly?
110 REPLIES 110
jaread83
Hero
Posts: 3,407
Thanks: 1,407
Fixes: 78
Registered: ‎22-02-2016

Re: SIte load process / performance

This seems to have been happening ever since the GDPR cookie banner was introduced (3 months ago). The banner itself lives in a central location and has its own JS, CSS and HTML markup. The banner has to import custom CSS into the page wherever it is called and with it comes the plusnet font being served from our servers. It may be conflicting with the community CSS as the font is hosted on our servers but the font I implemented here is hosted on the community servers. I will have to raise an internal bug to take a look at this so it can be investigated properly. Sometimes it works but sometimes it does not and I am unsure why this would happen.

Frontend Web Developer | www.plus.net

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Mayfly
Pro
Posts: 1,260
Thanks: 149
Fixes: 1
Registered: ‎04-06-2009

Re: SIte load process / performance

I too have this problem tho' the incorrect font first happened much longer ago than 3months. I did ask about it and jarad83 replied to me, tho' I can't remember what his reply said or when I first asked the question. 

 

Community Veteran
Posts: 2,124
Thanks: 13
Fixes: 5
Registered: ‎01-08-2007

Re: SIte load process / performance

I've noticed this recently too. The community site at times seems painfully slow with page loading. Fonts still disappear and reappear. Thought it was an issue with my setup, even though all other Web activity normal. Even pressing the back key, it seems to be reloading the page from scratch
Superuser
Superuser
Posts: 14,643
Thanks: 5,663
Fixes: 32
Registered: ‎22-08-2007

Re: SIte load process / performance

jaread83
Hero
Posts: 3,407
Thanks: 1,407
Fixes: 78
Registered: ‎22-02-2016

Re: SIte load process / performance

I beleive that some bugs have been fixed RE the GDPR banner (IE11 bug specifically) and is waiting for release but reproducing the forum loading slowly without the fonts due to the banner is proving hard to replicate.

Frontend Web Developer | www.plus.net

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Moderator
Moderator
Posts: 28,432
Thanks: 2,469
Fixes: 319
Registered: ‎14-04-2007

Re: SIte load process / performance

The Community has been slow over the past weeks but today is almost unworkable for me.

I clicked 'Like' on a post and it was around 15 seconds before it refreshed.

I did a speed check and my broadband is running at 75Mbs down and 16Mbs up so no problems there.

Customer and Forum Moderator. Windows 10 Firefox 69.0.3 (64-bit)

Life is tough enough without adding Linux into the mix.
jab1
Hero
Posts: 3,143
Thanks: 999
Fixes: 19
Registered: ‎24-02-2012

Re: SIte load process / performance

I agree - Community is still very slow to load, mine hangs at the beginning - when I click on say 'Broadband' in the main menu, it can take up to 10 seconds stuck on 'waiting for community.plus.net' but thereafter everything is rapid. This not a fault with my connection/system - other sites load almost instantly, including a number hosted in the U.S.

John
Moderator
Moderator
Posts: 28,432
Thanks: 2,469
Fixes: 319
Registered: ‎14-04-2007

Re: SIte load process / performance

Since making the above post I have done as suggested here and cleared the browser's cache and things are a little faster.

I'm a big fan of coincidences but hoping this is not one of them....we shall see.

Customer and Forum Moderator. Windows 10 Firefox 69.0.3 (64-bit)

Life is tough enough without adding Linux into the mix.
jab1
Hero
Posts: 3,143
Thanks: 999
Fixes: 19
Registered: ‎24-02-2012

Re: SIte load process / performance

@Strat See me post - this is community that is the problem - I don't get the delay with other sites, including the other bits of PN (Members Centre &c)

John
jaread83
Hero
Posts: 3,407
Thanks: 1,407
Fixes: 78
Registered: ‎22-02-2016

Re: SIte load process / performance

The forums are hosted completely seperate from any of our other sites. They are hosted by Lithium on servers in the Netherlands and have nothing to do with our other sites and services. So any issues coming from the member centre, main website etc would have no effect on the forums.

I have checked the performance graphs and the most heavy component being loaded is the 'online users' part on the homepage and forum page. The average page load time in the last 200 page loads has been 302ms for the homepage and that's the slowest page. What I will do is keep an eye on the graph periodically and see if it spikes at any time at all.

Here is the graph:

Screen Shot 2018-09-17 at 16.33.24.png

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jab1
Hero
Posts: 3,143
Thanks: 999
Fixes: 19
Registered: ‎24-02-2012

Re: SIte load process / performance

@jaread83 In my case, it is not the actual loading time that is the problem, rather the length of time before the Lithium server responds - this can vary from almost instantly (rare) to anything up to 12-15 seconds.

John
Superuser
Superuser
Posts: 3,761
Thanks: 2,222
Fixes: 14
Registered: ‎10-04-2007

Re: SIte load process / performance

Performance is pretty dire this morning?  Even a simple 'click' on Like / Thanks is taking 3 / 4 seconds; new pages load (slowly) and then after 3 / 4 secs have a page refresh as the fonts change.

jaread83
Hero
Posts: 3,407
Thanks: 1,407
Fixes: 78
Registered: ‎22-02-2016

Re: SIte load process / performance

This isn't something I have any control over unfortunately. I have sent a support request directly to Lithium as last time I reported it, they pointed me to the performance graphs and said there weren't any issues. The only significantly slow parts of the site is the 'online users' component on the homepage and forum page but if the slow down is in the thread view - then my custom component shouldn't be causing a slow down. The fonts are even uploaded and hosted to Lithium servers so there shouldn't be an issue there either.

I will see what Lithium support says and let you all know as and when I hear back. So far I have received an email confirming receipt of my support request and that it is being reviewed.

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Community Veteran
Posts: 6,979
Thanks: 2,256
Fixes: 43
Registered: ‎16-10-2014

Serious lag on the site and notification emails.

I can't be the only one to notice this, but the entire site is running really slow and I got an email from a subscribed thread delivered to me over two hours after when it said it was sent!