I don't know what document that reference about "As shown in Section 7.6.3.2.2" comes from, is that document wrong or did you just mis-read it, matt?

I doubt it's wrong. Hmmm. that sequence is only value for the REF bit, not the CHG bit. I think I need to think about this more.

could you build a profiling kernel and collect some kernel profile data of one of these ftp sessions?

That looks to be from the 6xx Programming Environments Manual (PEM), pdf page 333 / 7-65 / section "7.6.3.2.2 Clearing the Referenced (R) Bit":

yea, that looks like it. the manual appears to be wrong.

the old pmap looks more like the "general case" section right before that. we should note that the section 7.6.3.2.2 code is only for clearing the referenced bit, not the modified bit "because the R bit need not be maintained exactly." if we want to optimize pmap_clear_reference() to use this faster algorithm, it can't share code with pmap_clear_modify().

• 126M Byte の区画を作って見た。 (特に端数は意味がない)
• /etc/fstab に -b option で書く方法が分らなかったので、 /etc/rc.local に次のように書いておいた。

  mount_union -b /pkgsrc /export/pkgsrc 
  

• ところが、inode が足りないと言って全部入らなかった。
• (ので) newfs -m 2 -i 1024 /dev/wd0f で作り直し
• いまは、こんな感じ。

  makoto@harry  16:21:22/011108(/)# df -k
  Filesystem            1K-blocks     Used     Avail Capacity  Mounted on
  /dev/wd0e               3961864   521136   3361490    13%    /export
  /dev/wd0f                114415    71098     41028    63%    /pkgsrc
  <below>:/pkgsrc         4032962   592234   3361490    14%    /export/pkgsrc
  

  この harry は TiBook,

＠ X401-2001-04-17 を作って見たが、:

(--) PCI: (0:16:0) ATI unknown chipset (0x4c59) 
    rev 0, Mem @ 0xb8000000/27, 0xb0000000/16, I/O @ 0x0400/8

と言われているが ATI Radeon Mobility LY (AGP) というものらしい

＠ 関係ないけれど powerpc--netbsd となるのはさびしいので:

＠ sudo-1.6.3p7:

Some files you might need to customize include the following:
        /etc/sudoers