Comment 235 for bug 620074

Gonzalo, I think you're giving great question in order for us to establish the cause of the problem. Even though I can't anwer most of your questions (I'm no guru) I think we all should agree on a unified ways to test and measure the responsiveness. Regarding filesystems, I tried ReiserFS, ext3 and ext4 with two terminals running dd if=/dev/zero of=/test1 bs=1M count=1400 and dd if=/dev/urandom of=/tst2 bs=1M count=700 as a test, and they all gave the same sluggish feeling to the system.