* Prasad Joshi <prasadjoshi124@xxxxxxxxx> wrote: > May be the DD of 1G file was a wrong test to calculate the > performance. Sasha had asked me to run boniee++ for performance > numbers. [...] It's difficult to test IO performance. One way to 'stabilize' such measurements would be to create a 'make test io' variant, which builds not just a simple 'Hello World!' but also an IO performance benchmark. The advantage of such an approach (beyond the fun of writing it) would be that it's executed at a very predictable point in the bootup sequence, so if you keep the whole disk image in ramdisk (in /dev/shm/ for example) then it would allow very precise measurements that converge very quickly with very little noise. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
