[dmit]

How much of the overhead is actual overhead though? Operating systems know better than to store multiple identical copies of the same shared library in memory, for example. And it's not like the process-per-tab approach has no benefits - you use more RAM to get increased reliability and security in return.

[bduerst]

Chrome specifically runs these processes as duplicate services at the OS level so that when one fails in memory the rest don't.

http://blog.chromium.org/2008/09/google-chrome-memory-usage-...