|TIFF and LibTiff Mailing List Archive|
LibTiff Mailing List
2015.01.05 14:08 "Re: Fast TIFF Reading on Windows", by Aaron Boxer
On Mon, Jan 5, 2015 at 9:03 AM, Edward Lam <email@example.com> wrote: > On 04/01/2015 10:36 PM, Aaron Boxer wrote: > >> My very informal benchmark (windows 7, SSD, RamMAP tool to clear OS >> file cache before each run): >> >> 1) twiddling windows flags made no difference to speed >> 2) TIFFOpenfile with mode "ru" i.e. disabling memory mapping, was 3 >> times slower than with default flag "r" >> >> So, my conclusion is that memory mapping is the way to go for performance. >> > > I assume you mean "rm"? I don't think "u" has any meaning. > > Hmmmmm. I have the latest code, and 'u' is used in this version to disable memory mapping.