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Frequently, businesses will turn to “convenience metrics” average (or mean) response times to gauge overall performance. However while the average might be easy to understand it’s also extremely misleading. (…) The best way to measure this is to track the 99th percentile response time: the worst 1% . (via The Most Misleading Measure of Response Time: Average – Optimizely Blog )

December 11, 2013 · 1 min · 61 words

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ImageOptim optimizes images — so they take up less disk space and load faster — by finding best compression parameters and by removing unnecessary comments and color profiles. It handles PNG, JPEG and GIF animations. (via ImageOptim — better Save For Web )

December 4, 2013 · 1 min · 43 words

📜 First make it work (get tests to pass)

First make it work (get tests to pass). Then make it right (clean it). Then make it fast. (if it needs it). Uncle Bob (via How to convince ‘performance guys’ to Clean Code – Google Groups )

December 3, 2013 · 1 min · 37 words

📜 Programmers waste enormous amounts of time thinking about, or worrying

Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%. Donald Knuth (via When optimal matters )...

July 18, 2013 · 1 min · 95 words

🔗 When optimal matters | Playing with Objects

When optimal matters | Playing with Objects The rules of optimization (…) When you are thinking on making an optimization: First time: Don’t do it! Second time: Don’t do it yet! Third time: Ok, but you first profile and measure, and then optimize

July 18, 2013 · 1 min · 43 words

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TEDxPortsmouth – Dr. Alan Watkins – Being Brilliant Every Single Day: (Part 1) (Part 2) Your performance and results… … depend on your behaviour … which depends on what you think … which depends on how you feel … which depends on your emotions … which depend on your physiology (…) the dominant factor in the thinking <=> feeling loop is feeling (…) feelings are the awareness of your raw emotions...

July 15, 2013 · 2 min · 257 words

🔗 Instagram and Optimizing Favicons | Zoompf

Instagram and Optimizing Favicons | Zoompf “Lesson #1: Don’t forget your favicon.” But optimizing your website’s favicon goes beyond just making sure you don’t forget it. Below are 5 recommendations for optimizing your favicon, plus two bonus tips, to optimize your website’s favicon. Make sure it exists. Make sure it is compatible. Make sure it is cacheable. Make sure it is the right size. Make sure to serve it using compression....

April 20, 2012 · 1 min · 86 words

🔗 How to tune Photoshop CS5 for peak performance « Jeff Tranberry’s Digital Imaging Crawlspace

How to tune Photoshop CS5 for peak performance « Jeff Tranberry’s Digital Imaging Crawlspace This paper provides guidance on best practices to optimize Photoshop CS5 performance with a combination of careful hardware selection and informed program setup.

October 22, 2011 · 1 min · 37 words