/proc/sys/fs/* ˴ؤʸ          ͥС 2.2.10
        (c) 1998, 1999,  Rik van Riel <riel@nl.linux.org>

ŪʾˡŪˤĤƤϡREADME 򸫤Ƥ

==================================================================

Υեˤ /proc/sys/fs  sysctl ե˴ؤʸ
ޤޤƤꡢLinux ͥС 2.2 ФͭǤ

Υǥ쥯ȥΥեϡLinux ͥΥڥ졼
¿Ū塼˥󥰤˥󥰤
뤿˻Ѥ뤳ȤǤޤƥˤƤ
ޤե⤢ΤǡºݤĴ򤪤ʤˡʸ񤪤
ɤξɤळȤ򤪴ᤷޤ

ߤΤȤΥե뷲 /proc/sys/fs ˤޤ

  - dentry-state
  - dquot-max
  - dquot-nr
  - file-max
  - file-nr
  - inode-max
  - inode-nr
  - inode-state
  - overflowuid
  - overflowgid
  - super-max
  - super-nr

/proc/sys/fs/binfmt_misc Υե˴ؤʸ Documentation/
binfmt_misc.txt Ǥ

==================================================================

dentry-state:

linux/fs/dentry.c :
--------------------------------------------------------------
struct {
        int nr_dentry;
        int nr_unused;
        int age_limit;         /* ñ̤Υ (age) */
        int want_pages;        /* ƥˤ׵ᤵ줿ڡ */
        int dummy[2];
} dentry_stat = {0, 0, 45, 0,};
-------------------------------------------------------------- 

dentry ưŪ˳Ƥ줿줿ꤹΤǡnr_dentry 
 0 Τ褦˸ޤΤᡢnr_unused, age_limit, 
want_pages ΤߤѤƤȹͤΤǤnr_unused
ϡޤ̾ΤȤΤ褦Ǥage_limit ϡ꤬­ʤ
Ȥˡÿв dcache ȥƤ褤Ȥ
ͤ򼨤Ƥޤwant_pages ϡshrink_dcache_pages() ƤФ
Ƥꡢ dcache ̾ѤǤʤȤˡʳ
Ȥʤޤ

==================================================================

dquot-max & dquot-nr:

dquot-max եϡå夵ǥȥ
򼨤Ƥޤ

dquot-nr եϡƺѤߤΥǥȥοȡ
ǥȥο򼨤Ƥޤ

⤷⡢ǥå奨ȥζ˾ʤ
ġƱƥ桼Ҥɤ¿ʤ顢ξ¤夲
ȻפǤ礦

==================================================================

file-max & file-nr:

ͥưŪ˥եϥɥƤޤƤӲ뤳
Ϥޤʤ褦Ǥ

file-max ͤϡLinux ͥ뤬Ƥեϥɥκ
򼨤Ƥޤեϥɥ뤬­ʤȤ顼å
̤˽ФƤΤʤ顢ξ¤夲ȻפǤ礦

file-nr  3 ĤͤϡƤ줿եϥɥο̤
ѤΥեϥɥοեϥɥκ򼨤Ƥޤ
Ƥ줿եϥɥο˶ᤤ̤ѤΥե
ϥɥο 0 ⤫ʤ礭ʤСեϥɥѤ
ԡǤȤäȤȤ򼨤Ƥꡢ䤹ɬפ
ޤ

==================================================================

inode-max, inode-nr & inode-state:

եϥɥƱͤǡͥ inode ¤ΤưŪ˳
ޤ뤳ȤϤޤǤޤ

inode-max ͤϡinode ϥɥκ򼨤Ƥޤ
 file-max ͤ 3  4 礭ƤȤΤϡ
ɸϤɸϡӥͥåȥåȤ⡢ˤ
inode ¤ΤɬפȤʤ뤫ǤŪ inode ­ʤʤ
褦ʤ顢ͤ䤹ɬפޤ

inode-nr եˤϡinode-state κǽĤΥƥबޤޤ
ƤޤǤΤǡΥեˤĤƤάޤ

inode-state  3 Ĥμºݤοͤ 4 ĤΥߡͤޤǤޤ
ºݤοͤϡо줹֤ˡnr_inodes, nr_free_inodes, preshrink
Ǥ

nr_inodes ϡƥǳƺѤߤ inode ο򤢤路Ƥ
ޤLinux ϰ٤ 1 ڡʬäѤ inode ƤΤǡ
ͤ inode-max 꾯¿ʤꤨޤ

nr_free_inodes ϡ inode (?) ο򤢤路Ƥޤ
preshrink ϡnr_inodes  inode-max 礭ġƥ
ơinode Ƥ뤫 inode ꥹȤڤͤɬפ
硢ʳͤˤʤޤ

==================================================================

overflowgid & overflowuid:

Linux Ǥ UID  GID  32 ӥåȤǤ16 ӥåȤ UID  GID
ݡȤʤե륷ƥबޤΤ褦ʥե
ƥब߲ǽǥޥȤȡǥ˽񤭹ޤ
ˡ65535 Ķ UID ޤ GID Ϥ٤ơͤѴޤ

 sysctl եǡθ UID  GID ͤѹ뤳
Ǥޤǥեͤ 65534 Ǥ

==================================================================

super-max & super-nr:

οϡѡ֥åκĤޤꡢͥ뤬ޥ
ȤݻǤե륷ƥκ椷ޤsuper-max
θߤͤǵĤƤ¿Υե륷ƥޥ
Ȥɬפϡsuper-max ͤ䤹Ǥ褤Ǥ

==================================================================

aio-nr & aio-max-nr:

aio-nr ϡƥΤˤ븽ߤƱϤο򼨤Ƥ
ޤaio-max-nr ǡaio-nr äƤȤΤǤͤ
ѹ뤳ȤǤޤ

==================================================================

------------------------------------------------------------
Ρ JF ץ < http://www.linux.or.jp/JF/ >
ǽ 2004/07/29
ԡ    ɧ <takahiko(a)hakubi.co.jp>
ԡ   Seiji Kaneko <skaneko(a)a2.mbn.or.jp>
