Quote Originally Posted by KTE View Post
I had time so I ran some tests.

How much is the hard drive involved with a Super Pi calculation?

I had nothing else running and so measured every query/read/write the application and OS made towards the hard drive.

Well, whadya know.

  • Super Pi 1M took 52 seconds (P4C).
  • In those 52 seconds Super Pi made 11,075 disk queries/read/writes.
  • Of them there were only 19 queries.
  • The first Super Pi 1M action was to query and open the file Msimtf.dll.
  • Super Pi made 10-25 read/writes per millisecond during the 1M run.

So, anyone using a RAMdisk or something with less latency than a typical HDD, theoretically, will have faster times considering they know how to.

Attached is the starting output of Super Pi.
theory and practice are very different

i can run ERAM and have zero HDD use

time don't improve
in fact they are worse in 1M