root@host [/etc]# iostat -xk
Linux 2.6.32-279.19.1.el6.x86_64 (host.superhostsite.com) 01/13/2013 _x86_64_ (24 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
12.53 0.19 3.72 0.18 0.00 83.38
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
sda 0.24 252.39 13.95 4.24 381.61 1026.56 154.88 1.35 73.99 1.67 3.04
sdb 0.00 12.88 62.55 134.82 755.65 1146.14 19.27 0.82 4.17 0.10 1.92
sdc 0.01 129.31 28.19 298.49 451.10 1711.38 13.24 0.21 0.63 0.05 1.75
root@host [/etc]# mount
/dev/sda3 on / type ext4 (rw,noatime,noload,data=ordered,commit=10)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0")
/dev/sda1 on /boot type ext4 (rw)
/dev/sdb1 on /home2 type ext2 (rw,noatime)
/dev/sdc1 on /home3 type ext4 (rw,noatime,noload,data=ordered,commit=10)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
/usr/tmpDSK on /tmp type ext3 (rw,noexec,nosuid,loop=/dev/loop0)
/tmp on /var/tmp type none (rw,noexec,nosuid,bind)
root@host [/etc]#
1026 wKB / se 73 segundos de espera. O que está sendo escrito lá? Isso faz com que todo o servidor fique lento.
SDA é a única unidade que não é SSD. Este poderia ser o gargalo da garrafa.
Uma abordagem que estou pensando é fazer solução em Como saber recentemente atualizado arquivos
No entanto, sda, sendo a raiz, é montado em /
existem arquivos em sdb e sdc que estão escritos, mas eu não me importo com eles.
iotop -o -a rende
Total DISK READ: 1314.41 K/s | Total DISK WRITE: 3.58 M/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
13266 be/4 root 0.00 B 2.22 M 0.00 % 0.67 % [flush-8:16]
880 be/3 root 0.00 B 144.00 K 0.00 % 0.61 % [jbd2/sda3-8]
1778 be/4 root 0.00 B 0.00 B 0.00 % 0.08 % [kjournald]
940 be/4 root 0.00 B 1024.00 K 0.00 % 0.04 % [flush-8:32]
26823 be/4 nudenude 24.00 K 300.00 K 0.00 % 0.01 % php /home2/nudenude/public_html/hello/index.php
1775 be/0 root 0.00 B 56.00 K 0.00 % 0.00 % [loop0]
27273 be/4 nudenude 8.00 K 360.00 K 0.00 % 0.01 % [php]
128 be/4 root 0.00 B 4.00 K 0.00 % 0.00 % [sync_supers]
8414 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
24938 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
24997 be/4 nobody 0.00 B 16.00 K 0.00 % 0.00 % httpd -k start -DSSL
25068 be/4 nobody 0.00 B 12.00 K 0.00 % 0.00 % httpd -k start -DSSL
25070 be/4 nobody 0.00 B 12.00 K 0.00 % 0.00 % httpd -k start -DSSL
25074 be/4 nobody 0.00 B 16.00 K 0.00 % 0.00 % httpd -k start -DSSL
25075 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
25076 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
4215 be/4 root 0.00 B 4.00 K 0.00 % 0.00 % whostmgrd - serving 139.193. --llu=1357836602 --listen=3,4,5,6,7,8
4117 be/4 nobody 0.00 B 12.00 K 0.00 % 0.00 % httpd -k start -DSSL
21264 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
25398 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
17226 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
21331 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
21332 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
17290 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
17296 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
938 be/4 root 0.00 B 24.00 K 0.00 % 0.00 % [flush-8:0]
17358 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
21467 be/4 nobody 0.00 B 20.00 K 0.00 % 0.00 % httpd -k start -DSSL
17372 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
21470 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
21471 be/4 nobody 0.00 B 16.00 K 0.00 % 0.00 % httpd -k start -DSSL
17377 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
17381 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
17465 be/4 nobody 0.00 B 12.00 K 0.00 % 0.00 % httpd -k start -DSSL
17467 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
17483 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
17492 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
17501 be/4 nobody 0.00 B 12.00 K 0.00 % 0.00 % httpd -k start -DSSL
17507 be/4 nobody 0.00 B 4.00 K 0.00 % 0.00 % httpd -k start -DSSL
17509 be/4 nobody 0.00 B 8.00 K 0.00 % 0.00 % httpd -k start -DSSL
Você deseja usar find conforme especificado no seu link, mas com um sinalizador de montagem , que restringirá a localização ao sistema de arquivos atual e ignorará quaisquer outras.
-mount
Don't descend directories on other filesystems. An alternate name for -xdev, for compatibility with some other versions of find.
Se você realmente estiver vendo isso, use iotop .
Tags devices