Re: [Freedos-devel] UDMA2 testing

2005-06-07 Thread Michael Devore
At 10:15 PM 6/7/2005 -0300, Alain wrote: I just made some tests with UDMA2 and had some unexpected results: Why is FreeDOS so much slower (60% no UDMA, 14% with UDMA)??? Is this consistent with other experiments? Virtual 8086 mode hurts disk I/O throughput. Not really sure why all the deta

Re: [Freedos-devel] UDMA2 testing

2005-06-07 Thread Johnson Lam
On Tue, 07 Jun 2005 22:15:25 -0300, you wrote: Hi Alain, >Why is FreeDOS so much slower (60% no UDMA, 14% with UDMA)??? >Is this consistent with other experiments? Try skipping EMM386 ... or try UMBPCI >FreeDOS kernel= , lbacache 22sep2004 with tickle, Himem/emm386 v2.01 >MSDOS from Win98se, ca

Re: [Freedos-devel] UDMA2 testing

2005-06-07 Thread Bernd Blaauw
Alain schreef: FreeDOSMS-DOS7.10 No UDMA, no cacheR=1.4 W=1.4R=2.3 W=2.8 No UDMA, cacheR=1.3 W=1.4R=2.3 W=2.7 UDMA2, no cacheR=6.3 W=4.4R=54.2 W=16.0 UDMA2, cacheR=5.5 W=4.4R=39.5 W=15.7 FreeDOS kernel= , lbacac

[Freedos-devel] UDMA2 testing

2005-06-07 Thread Alain
I just made some tests with UDMA2 and had some unexpected results: Why is FreeDOS so much slower (60% no UDMA, 14% with UDMA)??? Is this consistent with other experiments? Please, I would like to here comments on this ;-) UDMA 7.0 and UDMA2 2.5 had the same performance. On instalation it says m