Re: mmap
Bob Friesenhahn <[email protected]> Mon, 18 Apr 2005 21:02:31 -0500 (CDT)
| Newsgroups | gmane.comp.video.graphicsmagick.core |
|---|---|
| Message-ID | <[email protected]> |
On Mon, 18 Apr 2005, Bob Friesenhahn wrote: > > Although it seems reasonable to assume that the I/O approach is the reason > for the performance difference, I have not yet done a profiled build, or done > a detailed investigation, in order to see for sure. Interestingly, when comparing behavior of rwfile (read/write file) to rwblob (read/write RAM), the performance is remarkably similar. The read performance is almost exactly 2X that of the write performance on SPARC. It seems that some profiling is in order ... Bob ====================================== Bob Friesenhahn [email protected], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ ------------------------------------------------------- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728