Messages in this thread | | | Date | Thu, 24 Jan 2002 12:19:52 -0700 | From | Andreas Dilger <> | Subject | Re: Can linux support ccNUMA machine now? |
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On Jan 24, 2002 10:50 -0800, William Lee Irwin III wrote: > On Thu, Jan 24, 2002 at 02:15:30PM -0200, Denis Vlasenko wrote: > > Looks like running x86 with more than 16GB RAM is not a good idea. > > If you need it, you need 64bit arch.
Actually, Andrea made a patch to move the page tables into HIMEM on such machines. I believe it is in the latest -aa patch.
> Reducing overhead helps all boxen everywhere all the time. Turning the > kernel upside-down for the corner case of 64GB isn't worth it, but > finding more graceful ways to fail than not booting with no visible > error messages, and perhaps extending the range of configurations where > the kernel actually functions (within reason) by reducing space > overhead is worthwhile.
Yes, there also have been several patches floating around to reduce the size of struct page. I don't think any are in the kernel yet.
Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/
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