lkml.org 
[lkml]   [2007]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: [PATCH 00/18] Make common x86 arch area for i386 and x86_64 - Take 2
    From
    From: Christoph Lameter <clameter@sgi.com>
    Date: Fri, 16 Mar 2007 13:52:18 -0700 (PDT)

    > Virtual mmap allows holes in the same way as page tables do.

    I don't want to take expensive TLB misses to lookup a page.

    Don't force a virtual mapping solution down my throat if that
    is not what I believe as a platform maintainer works best
    for me.

    TLB misses are extremely expensive on some platforms, that's why
    I try to make all the critical structures go through the 4MB
    locked TLB entry for the kernel image, or failing that the
    4MB linear mappings at PAGE_OFFSET on sparc64.
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-03-16 21:59    [W:0.031 / U:33.468 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site