art with code

2008-11-13

Filezoo, end of day 4: Speed!


Today on the Filezoo front: Got relayout down to 1 ms from 100 ms by eliminating unnecessary sorting (man, something's wrong when sorting a 3800-item array of strings takes 100 ms.) Drawing a frame of a 4000-entry dir is down to 50 ms from the previous 500-1000 ms. It still has the initial traversal latency, but I'm now masking it by drawing the first frame without the size-part of the titles. Which is good enough UI-wise, but doing a couple dozen directory traversals in parallel makes the disk cry.

The latency from clicking on a directory to completing the first frame is 60ms for my homedir (272 entries) and 180 ms for /usr/lib (3800 entries). Of the 180 ms, 50 ms goes to listing the directory contents, 80 ms is spent sorting the directory entries and 50 ms drawing. If I want to meet the <100 ms initial latency goal, I need to peel off 80 ms somehow...

But anyhow, speed! Tomorrow some UI work and drawing directory contents [finally!] And probably a second round of code cleanup.

In other news, ran 10 km for the first time in years. Been doing 4-8 km runs lately due to the existence of a nice 8 km loop. Had one 3 x 8 km week a month ago, so 10 km isn't really that much of a stretch. Next up: 15 km!
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Built art installations, web sites, graphics libraries, web browsers, mobile apps, desktop apps, media player themes, many nutty prototypes, much bad code, much bad art.

Have freelanced for Verizon, Google, Mozilla, Warner Bros, Sony Pictures, Yahoo!, Microsoft, Valve Software, TDK Electronics.

Ex-Chrome Developer Relations.