Johnson Lam has posted an updated 9-Sep-2011 DRIVERS.ZIP file, on his website at <johnson.tmfc.net/dos/driver.html>, which contains a "new" UIDE2, also updates to the other UIDE drivers.
UIDE2 uses old-style "protected mode" caching, that was in UIDE until August, 2010. Try as I may, I simply cannot get the current all-XMS UIDE to run any faster in protected-mode (JEMM386 etc.). All of its cache tables are in XMS memory. This requires a slow Int 15h "trap" thru JEMM386, to "fetch" any XMS data. Absolutely NOT any fault of JEMM386, but due to Intel's too-complex 80386+ protected mode scheme! UIDE2 sets its binary-search table in memory beyond the driver, which avoids 50% of XMS accesses and saves time -- fewer Int 15h "traps" in protected-mode. As it uses more HMA or memory for its search table, UIDE2 does have cache-size limits, noted in the UIDE2.ASM file. But it is still up to 5% faster for protected-mode, and so UIDE2 is "Back in service!" for users who run JEMM386/EMM386 etc. I was also "unhappy" about UIDE-S running only 4 CD/DVD drives, since there may be a few "CD copier" PCs with up to 6 CDs. So, UIDE2 and UIDE-S now handle up to 6 CD/DVD drives! Any users who in fact have 7 or 8 CD/DVD drives can still use the "full" UIDE or the non-caching UIDEJR, which will run up to 8 CDs/DVDs (UIDEJR with its /U8 switch). UIDE2 and UIDE-S are still 7.5K-byte .SYS files, for "boot" diskettes or other space-limited systems. UIDE2 also handles the /N3 "No XMS" switch and sets the "UIDE$" default name if no CD/DVD drive is found. So, UIDE2 can be run with FreeDOS "automatic loader" scripts on their distribution CDs. (Not possible for UIDE-S, which now "barely fits" into 7.5K!). ------------------------------------------------------------------------------ Why Cloud-Based Security and Archiving Make Sense Osterman Research conducted this study that outlines how and why cloud computing security and archiving is rapidly being adopted across the IT space for its ease of implementation, lower cost, and increased reliability. Learn more. http://www.accelacomm.com/jaw/sfnl/114/51425301/ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
