[Bug 131094] Re: Heavy Disk I/O harms desktop responsiveness

[Rocko]

I experience this bug whenever the system hits my swap memory in Jaunty.
I have 4GB of RAM and 4GB of swap and I'm using ext4 with default
delayed allocation so I shouldn't be running into ext3 fsync problems.
The desktop normally responds 'reasonably' fast, but if I (eg) try
loading two 1.8GB VMs in VirtualBox, once the system hits swap the
desktop stops responding *completely* (both times I tried this I gave up
after 15 minutes and hard reset the PC) apart from jerky mouse cursor
movements.

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Heavy Disk I/O harms desktop responsiveness
https://bugs.launchpad.net/bugs/131094
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