April 2007 - Posts

• The windows prefetcher

  In my last blog I talked about some of the conditions than need to hold for the cold startup formula ColdStartupTimeMSec = WarmStartupTimeMsec + 4 * NumberOfReads + 20 * NumberMBytes To be accurate. I mentioned that if you have overlap between the CPU Read More... Posted Sunday, April 15, 2007 6:23 PM by vancem | 5 Comments

• Assumptions used in the cold startup formula (when is it accurate).

  After my last blog entry on cold startup a reader ( dimkaz ) worried that the formula would not be accurate in many cases. This topic is worth discussing in some detail because it pretty common to apply formulas outside the assumptions implicit in them, Read More... Posted Sunday, April 15, 2007 11:03 AM by vancem | 1 Comments Filed under: Perf

• A Model for cold startup time of an application on Windows.

  Well it is has been a while. I see now that it is been getting close to 1/2 a year since I last posted. Sigh. It is so easy for other things to get busy and not to blog. I have resolved to try to be a bit more methodical about and insure that I write Read More... Posted Monday, April 09, 2007 12:56 AM by vancem | 4 Comments Filed under: Perf