Why isn't "(ulimit -d 1000; firefox) &" working?

Posted by MaxB on Super User See other posts from Super User or by MaxB
Published on 2014-08-24T00:42:22Z Indexed on 2014/08/24 4:23 UTC
Read the original article Hit count: 403

Filed under:

linux

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firefox

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bash

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ubuntu-12.04

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ulimit

I'm trying to limit the memory usage of firefox to prevent it from stalling the whole system with problematic web sites.

I tried, in bash:

(ulimit -d 1000; firefox) &

This should limit the memory usage to 1000kB. Then I opened YouTube, and noticed, in top, that firefox is using 2.6% of the memory, or about 200MB, and not crashing. Clearly the limit is being ignored. Why is that, and how can I enforce it correctly?

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