Comment 39 for bug 721896

This happens pretty often on my system too (4Gb ram dual core, SSD) especially when running some java application together with thunderbird. (Anyway thunderbird slowness is another story..) but for example now i have the android emulator and android studio and as soon as I run thunderbird - the system goes very slow and barelyt responding to keypresses/mouse even the switching to VT1 works very slow. The top shows kswapd0 cpu usage to be 85-100% and the free ram is this:

             total used free shared buffers cached
Mem: 3920 3822 97 0 0 344
-/+ buffers/cache: 3477 442
Swap: 0 0 0

and this, is on raring! i remember this was happening on quantal and precise too ... please, if you need any tests done, let me know as this bugs renders this OS unusable for programming work. I am able to provide any logs u need.