search

dtekcth / DNollK.se

DNollK Chalmers hemsida
BSD 2-Clause "Simplified" License
2 stars 0 forks source link

Huge image filesizes and caching #22

Closed Jassob closed 8 years ago

Jassob commented 8 years ago

From @emilhem on August 12, 2016 8:31

The header image on desktop should be a JPG and compressed a lot! 4 MB is a lot!

The other images should be compressed as well to improve delivery.

Also caching should be used on all the images hosted on dnollk.se

A tip is to look at Google Pagespeed: https://developers.google.com/speed/pagespeed/insights/?hl=en&url=dnollk.se

Copied from original issue: dtekcth/DNollK.se#23

Jassob commented 8 years ago

There are definitely room for improvements on both the amount data we push to clients and the number of requests needed to open for each client.

I think it would be nice if we could merge some javascript files so that they would be transferred in one blob instead of opening multiple connections.

Jassob commented 8 years ago

This issue was moved to Jassob/DNollK.se#21

emilhem commented 8 years ago

Fixed header image with b9122744a9bbf8407f4d7b55741ad1f8373d2ef6

Now we have a new problem though! The dn0k.png is 11 MB large, so I resized it (the old one is named dn0k.old.png) and now it's only 1.7 MB. So we should warn the user when uploading to not upload so f***ing large images and use compression on PNGs.

emilhem commented 8 years ago

Also I worked on the server to fix caching. It's better now.

Holy shit! I ls -Al:ed the media/2016/ folder. The largest file is 50 MB large!!!!!!!!1

Really limit the users from being dumb and uploading f***ing huge images!

emilhem commented 8 years ago

Fixed logo image with 0da2efe0e22507995b0d1d6fd4daea80b1837355

I have compressed a lot of the images on dnollk now. Data savings are huge. Now I can load dNollK without caching 200 times with a 2GB dataplan instead of just 20.

When the commits b9122744a9bbf8407f4d7b55741ad1f8373d2ef6, 0da2efe0e22507995b0d1d6fd4daea80b1837355 are applied then this issue can be closed.

Jassob commented 8 years ago

Good work! You are right in that we should inform the administrators of the site not to upload huge images as that leads to a poor experience for the viewer..

I'll check in on these changes tomorrow just so I understand what you've done (so that I might learn something in the process).