Linux can use SSE after 2.4.x.
# cd /usr/src # zcat /PATH/TO/sys-r4?0-SSE.diff.gz |patch |& tee patch.log
There is test code for SSE.
(2001/01/26)It seem to harmless with mendocino celeron.
(2001/02/09)There is a mail from Mr. KATO @aist.go.jp. Thanks a lot.
(2001/03/03)I confirmed that SSE instructions can use with single cuppermine celeron.
(2001/05/05)make patch for 4.3R.
(2001/05/15)Mr. KATO's WWW page was moved from okayama-u.ac.jp.
(2001/06/11)I made a patch for 5-current. I checked only single cuppermine celeron. SMP is not tested yet.
(2001/06/30)ohashi@kyutech reports me that Pentium4 on FreeBSD4.3 works fine. Thanks!
(2001/08/18)My SSE patches have been merged into FreeBSD -current and -stable. My send-pr: kern/28070 have been closed. And I added SSE2 test code to loop.C . But I can't test it, because I don't have Pentium4.
(2001/10/06)I confirmed that AthlonXP can use SSE even in SMP environment. I tested dual AthlonXP/1.33GHz. It's VERY fast!
This page:<http://www.kobe1995.net/~kaz/FreeBSD/SSE.en.html> is link free. You can link without my permission.
I make an effort to accurate this page, but absolutely NO WARRANTY. FYI: All Infomation you get from this page, please use at your own risk.