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ΪʲôĿ¼ĴС4096ҵĹ۲ģ []

̳:
0
2007-12-20 21:16 |ʾȫ¥
4096ĵλʲôǵástat֪'Size:4096', I/O bock: 4096 ʲô˼أ
ллλ

̳:
0
2007-12-20 21:17 |ʾȫ¥

˼I/O Block

л

̳:
0
2007-12-20 22:02 |ʾȫ¥
ļϵͳйϵ

̳:
0
2007-12-21 09:43 |ʾȫ¥
I/O֪ʲô㻹ѧʲô

̳:
0
2007-12-22 14:32 |ʾȫ¥
Ҳ֪I/OʲôDz֪'I/O block:4096'ʲô˼⿴ٷĿлл

л

̳:
0
2007-12-22 20:25 |ʾȫ¥
Ǻǣ!
ȫͣ^_^
I: , O: block

ô
I/O block4096 ĿСΪļϵͳӲʱСλ

ΪʲôļĿ¼ǣΪСλԲСڣΪʲôȣҲΪĿ¼Ϣ͹ˣΪʲôҪ˷ѿռأ


ָȨͣ

̳:
0
2007-12-23 16:19 |ʾȫ¥
ллʿĽ
I see!

ʳ

̳:
0
2007-12-23 16:46 |ʾȫ¥
tun2fs -l /dev/sda1 | grep 'Block size'

Block size:               4096

ҵsda14K/block
ô


[root@linux ~]# mkfs.ext3
Usage: mkfs.ext3 [-c|-t|-l filename] [-b block-size] [-f fragment-size]
        [-i bytes-per-inode] [-j] [-J journal-options] [-N number-of-inodes]
        [-m reserved-blocks-percentage] [-o creator-os] [-g blocks-per-group]
        [-L volume-label] [-M last-mounted-directory] [-O feature[,...]]
        [-r fs-revision] [-R options] [-qvSV] device [blocks-count]


ڴļϵͳʱ -b ѡָblockС

̳:
0
2007-12-23 17:12 |ʾȫ¥
ԭ lonelyllz 2007-12-20 21:16
4096ĵλʲôǵástat֪'Size:4096', I/O bock: 4096 ʲô˼أ
ллλ


Ŀ䛵ĴСԓλǹ̶ 4096, ֻfԓĿ䛽YҪö block gʹ, һfĿ䛃ȵęnԽ, Ҫõ block ͕Խ.

ls -l / / Ŀ䛕lFSYϊA 4096.


  1. [kenduest@cle:~] ls -l /
  2. total 116
  3. drwxr-xr-x   2 root root  4096 Dec  5 04:11 bin/
  4. drwxr-xr-x   3 root root  4096 Dec 10 08:12 boot/
  5. drwxr-xr-x  10 root root  3740 Dec 23 11:41 dev/
  6. drwxr-xr-x  86 root root  8192 Dec 23 11:40 etc/
  7. drwxr-xr-x  27 root root  4096 Oct 11  2006 home/
  8. drwxr-xr-x  13 root root  4096 Oct 18 04:11 lib/
  9. drwxr-xr-x   3 root root  4096 Jul 27  2004 man/
  10. drwxr-xr-x   3 root root  4096 Nov  3  2006 media/
  11. drwxr-xr-x   2 root root  4096 Aug  7 11:17 misc/
  12. drwxr-xr-x   6 root root  4096 Oct 11  2006 mnt/
  13. drwxr-xr-x   2 root root  4096 Oct 11  2006 opt/
  14. drwxr-x---  11 root root  4096 Dec 11 14:57 root/
  15. drwxr-xr-x   2 root root  8192 Dec  5 04:11 sbin/
  16. drwxr-xr-x   4 root root  4096 Jan 31  2007 srv/
  17. drwxr-xr-x  12 root root     0 Dec 23  2007 sys/
  18. drwxrwxrwt   4 root root 45056 Dec 23 17:01 tmp/
  19. drwxr-xr-x  15 root root  4096 Nov  3  2006 usr/
  20. drwxr-xr-x  25 root root  4096 Jun  4  2007 var/
ƴ


--

̳:
0
2007-12-24 10:01 |ʾȫ¥
ڴļϵͳʱ޸Ĭϵֵһ˵Сļһ㣬ôСI/OλСһ㣬ʡ̿ռ䣬ҪŴļԵһЩԼٴƬIOֺô
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