cpukillram
What i need from my computer, now that it's summer at least, should never use a lot of resources – when applications do so it's because of some kind of bug or memory leak.
Is there any way to automatically kill any application that uses, for example, more than 15% of the CPU or more than 450 mbs of RAM?
I would like to use this trick, if it's possible, at either 11.04 or 11.10.
Chromium will use more memory then Firefox as the amount of tabs goes up (this is by design).
While running Chromium press Shift+ESC to bring up the chromium task manager. Click the 'Stats for Nerds' button and see which process in Chrome is using the most memory. You can use this to check what memory is used.
A few graphs from Tom's hardware "Web Browser Grand Prix 9: Chrome 17, Firefox 10, And Ubuntu"
We use the Internet's Top 40 Web sites (according to Quantcast) for our memory and page load reliability testing. Unlike our startup and page load times, this test uses live sites; the test sites are not hosted on our local Web server.
Chrome's memory usage is measured through its about:memory flag, while the other browsers are measured with the Windows Task Manager/Ubuntu System Monitor. Each browser is opened with the Google homepage as the only tab. Memory usage is recorded, and then the additional 39 tabs are loaded. Once all tabs report as loaded, we inspect each page for broken elements and reload any pages that have not opened properly before recording the 40-tab memory usage.
Next we close all tabs except the original one containing Google's homepage and re-record the memory totals. Finally, we wait two minutes and record the final memory usage figure.
This test is from 2012 but the numbers still seem to stand. The only thing this does not cover is the usage of HTML5.
Conclusion
Overall, Internet Explorer and Chrome are the winners during periods of light usage. They also seem to manage memory best. Safari and Firefox shine more prominently during heavy loads. Chrome and IE9, however, are hogs when it comes to heavy use, and Opera for Linux demonstrates poor management.
My opinion:
Stick with the browser you -like- and works for your.
Best Answer
If I were worried about high cpu usage I would do what supercomputer admins do and use cpulimit also stay away from the main offenders, continually updating websites,flash and coverting or watching video and things should stay fairly stable.
Hope this helps.