Did anyone noticed this?

My last updates were for wine (I'm using updates from the wine HQ) and security updates for ati driver. I think it was after that that I noticed my swap being used, which is VERY uncommon as I have 2GiB of RAM and have swappiness set to 20. My swap partition is 1GiB.

I'm writing this with 27% of ram used, and 66% of swap.

Did someone noticed this?