Chrome and Firefox 3.5 Memory Usage
Problem. You are interested in how the Google Chrome 3.0 Dev, Firefox 3.5 RC, Safari 4.0 for Windows, and Opera 10b web browsers manage memory on the Windows Vista operating system over moderate usage, such as with 150 top web sites. These numbers can be measured but there are complexities involved in measuring memory. Solution. Here we look at a program that simulates a user visiting the top 150 web sites from Alexa from the command line, with visits occurring at short but varying intervals in many tabs.
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Results
Here we see the results of the experiment when performed as described above. During the experiment, 384 memory checkpoints were taken, which amounts to 1152 seconds or 19.2 minutes. Google Chrome posted the highest maximum memory usage when all chrome.exe processes were summed, reaching 1.18 gigabytes, while Firefox posted the lowest maximum memory levels of 327.65 megabytes. This means Firefox used 73% less memory during peak periods.
--- Maximum memory used ---
Peak memory usage measured during experiment.
Chrome: 1216.16 MB [Largest]
Firefox: 327.65 MB [Smallest]
Opera: 554.11 MB
Safari: 517.00 MB
--- Average memory used ---
Average of all memory checkpoints throughout experiment.
Chrome: 543.83 MB [Largest]
Firefox: 166.82 MB [Smallest]
Opera: 347.45 MB
Safari: 319.44 MB
--- Final memory used ---
Figures taken after all tabs were closed at end.
Chrome: 109.49 MB
Firefox: 106.66 MB [Smallest]
Opera: 441.49 MB [Largest]
Safari: 349.62 MB
http://dotnetperls.com/chrome-memory
Discuss.
