Discourse mobile slow on 2013 Android phone

الدعم
1

Hi,

I experienced some (for me serious delays) in the rendering performance. For example this thread in the syncthing forum: SSL Certs discovery v4 vs v6 - General - Syncthing Forum.

I use the chrome on samsung s4.

with_js.png1920×1018 242 KB

(screenshot of developer tools), rendertime ~11s, without js ~1s (at home over wlan)

Thx in advance!

2

I can be wrong but on a early 2013 phone, with 1.5GHz processor this is bad but kinda expected?

How is the timing loading meta.discourse.org and try.discourse.org ?

3

This phone has been 3years ago an high end phone. What is the phone distribution here on this site? Maybe there are less powerful phones.

Mobile design is IMHO not only about the responsive layout. It is also about speed/bandwidth and hardware limitations on these devices.

  1. meta.discourse.org: WebPageTest Test Result - Frankfurt : meta.discourse.org - 03/30/16 19:51:42
  2. try.discourse.org: WebPageTest Test Result - Frankfurt : try.discourse.org - 03/30/16 19:55:21
  3. forum.syncthing.org: http_://www.webpagetest.org/result/160330_YB_191aff8be451ac26636f4b115f2cc018/

You can see there is timerange with 100% cpu.

P.S. forum.syncthing is the fastest

4

Well, you have to take into account the speed of light here.

You are comparing the speed between Frankfurt :left_right_arrow: San Francisco and Frankfurt :left_right_arrow: Amsterdam.

5

This tests are using the chrome emulation, and not real devices too.

http://mobitest.akamai.com/m/results.cgi?testid=160330_9W_3E

This gives 7s with a cold cache.

Discourse is working on improving this:

6

ok, so you know about. I currently switched to the js-less version. At this point an app makes sense … a lot!

8

As of October 2017, JS perf in Android / Chrome is substantially improved, probably 1.5x - 2x speedup.

As of June 2018, Qualcomm has semi-competitive (iPhone 6s territory) hardware with the Snapdragon 845. It looks like their new release coming in 2019, the Snapdragon 855, will be close to iPhone 7 performance.

We do have to wait for the vast bulk of old Android devices to cycle through the market, unfortunately. I expect that will take another 4 years.

9

I find my really dodgy 50 dollar android somewhat usable these days

10

For example I’m rocking a Pocophone F1 which costs $299, has the Snapdragon 845, and it’s a breeze to browse Discourse using it (I do it everyday :wink:)

11

Anything at Snapdragon 845 level or higher is going to be very solid for Discourse.

12

لديّ عدد قليل من المستخدمين على هواتف أندرويد يستخدمون متصفح كروم يشتكون من بطء تحميل الموقع، وذلك مؤخرًا فقط، حيث بدأ أحد المستخدمين في الشكوى بعد الترقية الأخيرة. هل هناك أي تغييرات قد تكون أثرت على هذا الأمر؟

13

تأكد من أنك على أحدث إصدار. إذا كنت خلف وكيل عكسي أو أي وكيل غريب آخر مثل Cloudflare، فقد كان هناك خطأ مؤخرًا منع التراجع من Brotli إلى Gzip من العمل. وهذا أمر مؤلم نظرًا لحجم ملف الحمولة الناتج.

14

كل شيء محدّث ولا توجد أي شبكة توصيل محتوى (CDN) أو وكلاء وسيطون. يعمل بشكل جيد على هاتفي iPhone باستخدام متصفح Safari. هل يواجه أي شخص آخر مشاكل مماثلة؟ الإضافة الوحيدة التي أملكها هي إضافة الإعلانات، وأنا لا أستخدمها حتى في الوقت الحالي.