TVTropes Now available in the app store!
Open

Follow TV Tropes

Following

FYI: How to ACTUALLY reduce bandwidth

Go To

BigT grimAuxiliatrix Since: Jan, 2001
grimAuxiliatrix
#1: Jan 11th 2011 at 9:10:14 PM

If you're worried about bandwidth, take the time to optimize your images. For JPEGs, somewhere between 75% and 85% is usually good, especially since the original is often 75% or less. Unless the image was specifically designed to be a PNG, those are usually much larger.

One thing that rarely helps much is reducing the actual image size. For example, the resize mentioned in this locked thread only reduces the image by < 5KB.  *

This is pretty typical, and means a difference of less than a second, even on dialup.

In most cases, the only real reason to use a smaller image is if it looks better.

Everyone Has An Important Job To Do
FastEddie Since: Apr, 2004
#2: Jan 11th 2011 at 9:22:47 PM

Images over the width limit slow the client browser down re-calcing the display image. Some browsers, in fact, are really bad with that job.

We're more interested in speed of page presentation than bandwidth, so we're focusing on reducing round trips per page, enabling parallel threads, and improving the CSS/layout for a faster paint.

I agree that image compression is a good play. First we'll start compressing on upload, then we'll figure out which is the best way to compress all the 100,000+ images files we have.

Goal: Clear, Concise and Witty
Willbyr Hi (Y2K) Relationship Status: With my statistically significant other
Hi
#3: Jan 11th 2011 at 9:24:25 PM

Eddie, is there a way to do up a list of pages that have images that are over the size limit and being resized?

FastEddie Since: Apr, 2004
#4: Jan 11th 2011 at 9:28:18 PM

Hmm. I should be able to come up with a list, but the I think it would be a lot less work to do the resizing and compression with a program in one fell swoop.

Goal: Clear, Concise and Witty
Willbyr Hi (Y2K) Relationship Status: With my statistically significant other
Hi
#5: Jan 11th 2011 at 10:09:45 PM

Compression, no doubt; resizing...that may be better left to individual tropers to take care of, since some images may work at different sizes than others, unless you're talking about something that converts all the oversized pics to a flat 350 pixels.

Add Post

Total posts: 5
Top