optimization Archives - Page 3 of 11

performance, Programming

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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?

Background: While optimizing some Pascal code with embedded assembly language, I noticed an unnecessary MOV instruction, and removed it. To my surprise, removing ...

May 26, 2022
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Where to place JavaScript in an HTML file?

Say I have a fairly hefty JavaScript file, packed down to roughly 100kb or so. By file I mean it’s an external file ...

May 26, 2022
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Image sizes and order of operations

I’m working on optimizing my site, and part of that is compressing images and using smaller versions. I’m using WP Smush and creating ...

May 26, 2022
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Disable unneeded scripts in a wordpress installation

I have inherited a quite bloated wordpress website that runs really slow even on dedicated hosting. I am trying to optimize the speed ...

May 25, 2022
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How to solve slow WordPress site caused by attachment_metadata

My WordPress sites starting to become slower by time, after two years they become very slow. I tried many things, such as: improved ...

May 25, 2022
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How to log a method’s execution time exactly in milliseconds?

Is there a way to determine how much time a method needs to execute (in milliseconds)? 20 Answers 20

May 24, 2022
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Splitting the main query in multiple loops with query_posts and/or pre_get_posts?

I have a custom post type ‘events’, to which I have associated a custom taxonomy ‘calendar’. The calendar has 12 fixed terms, for ...

May 24, 2022
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Using Multiple Queries of “home_url” vs. Calling a Variable Multiple Times

Question Since I am using multiple instances of home_url() in one page template, I was curious if the following method would speed up ...

May 24, 2022
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Why is transposing a matrix of 512×512 much slower than transposing a matrix of 513×513?

After conducting some experiments on square matrices of different sizes, a pattern came up. Invariably, transposing a matrix of size 2^n is slower ...

May 23, 2022
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Rounding up to next power of 2

I want to write a function that returns the nearest next power of 2 number. For example if my input is 789, the ...

May 22, 2022
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