Tuesday, May 18, 2010

Page file size on machines with large amounts of memory

There is a rule of thumb that page file size (and swap space partition) should be 1.5 times the physical memory of the machine. Now that we have 64 bit machines with 16-64GB of memory this looks like an absurd.

  • We do not want to reserve so much disk space
  • It does not make sense to rely so heavily on disk 

I found two nice references in the internet regarding Linux and Windows


So my new rule of thumb page file should not be more than 70% full
Paging File\\% Usage Peak _Total < 70%

Wednesday, May 12, 2010

iPad Performance

Just received my new iPad and I must say that I really amazed by its performance. Everything is so snappy kudos to apple. I do want to understand how they were able to create this experience on such a device.
Can someone arrange me a meeting with Steve?