> So am I being to greedy and it’s impossible ?
It can really be so.
Or did I miss something in order to do it (because it must be possible since I can allocate more than
4Go of continuous virtual memory in User Space) ?
Probably yes, but not using MDL mappings.
–
Maxim S. Shatskih
Microsoft MVP on File System And Storage
xxxxx@storagecraft.com
http://www.storagecraft.com
>take 110s to rip 1000 pages of a pdf on the rip software and send the data to the printing software.
Then we switched to Shared Memory and it take 48s to rip the same 1000 pages.
I just can’t understand why you do not just plain write your data to temporary files, or use the command line with the pipe like “ripper | printer”.
There is absolutely no need in ripping at 1000pages/48s, if the printer can only print 100 pages per minute. In your case, printing will take 600s, and ripping - only 48s of them. Looks fine.
More so, by using Linux+their CUPS printing subsystem, you can solve your task (using wrappers around GhostScript for ripping) just by configuring CUPS.
Surely Windows kernel-mode development is not needed here.
–
Maxim S. Shatskih
Microsoft MVP on File System And Storage
xxxxx@storagecraft.com
http://www.storagecraft.com