Re: What is MTRR all about???
Quoting Daniel J. O'Connor (dar...@dons.net.au): > > On 05-Jun-99 bush doctor wrote: > > No man page yet. No horrors tho'. Man pages and info files are great, > > but there's nothing like reading through the sources ... #;^) > > Well given that the source contains help information its not a bad problem.. I > think the author is a tad busy at the moment :) Agreed ... #;^) > > --- > Daniel O'Connor software and network engineer > for Genesis Software - http://www.gsoft.com.au > "The nice thing about standards is that there > are so many of them to choose from." > -- Andrew Tanenbaum #;^) -- So ya want ta here da roots? Dem that feels it knows it ... bush doctor To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
Re: What is MTRR all about???
On 05-Jun-99 bush doctor wrote: > No man page yet. No horrors tho'. Man pages and info files are great, > but there's nothing like reading through the sources ... #;^) Well given that the source contains help information its not a bad problem.. I think the author is a tad busy at the moment :) --- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
Re: What is MTRR all about???
Quoting Daniel J. O'Connor (dar...@dons.net.au): > > On 04-Jun-99 bush doctor wrote: > > Pentium Pro MTRR support enabled, default memory type is uncacheable > > > > What is MTRR? Using the web based cross referencing tool I came up > > with > > MTRR's are a way to tell the processor how to cache regions of memory. Its > commonly used to speed up video card access by disabling caching on the linear > frame buffer, this makes writes to the card faster (around 0-30%). The penalty > is that reading is slower, but since that doesn't happen very often the speed > increase is good. > > Try man memcontrol - It doesn't yet work on SMP boxes though. Hmmm ... bantu.cl.msu.edu:dervish> more /usr/src/usr.sbin/memcontrol/Makefile PROG= memcontrol NOMAN= yes .include No man page yet. No horrors tho'. Man pages and info files are great, but there's nothing like reading through the sources ... #;^) > > --- > Daniel O'Connor software and network engineer > for Genesis Software - http://www.gsoft.com.au > "The nice thing about standards is that there > are so many of them to choose from." > -- Andrew Tanenbaum > #;^) -- So ya want ta here da roots? Dem that feels it knows it ... bush doctor To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
RE: What is MTRR all about???
On 04-Jun-99 bush doctor wrote: > Pentium Pro MTRR support enabled, default memory type is uncacheable > > What is MTRR? Using the web based cross referencing tool I came up with MTRR's are a way to tell the processor how to cache regions of memory. Its commonly used to speed up video card access by disabling caching on the linear frame buffer, this makes writes to the card faster (around 0-30%). The penalty is that reading is slower, but since that doesn't happen very often the speed increase is good. Try man memcontrol - It doesn't yet work on SMP boxes though. --- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
