按 I/O 大小对进程排序 磁盘读写频率

 按 I/O 大小对进程排序  磁盘读写频率

iotop

root@h:~# iotop
unable to set locale, falling back to the default locale
Total DISK READ : 0.00 B/s | Total DISK WRITE : 601.26 K/s
Actual DISK READ: 0.00 B/s | Actual DISK WRITE: 636.40 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
188 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.52 % [jbd2/vda1-8]
14758 be/4 mysql 0.00 B/s 0.00 B/s 0.00 % 0.28 % mysqld
14759 be/4 mysql 0.00 B/s 593.45 K/s 0.00 % 0.26 % mysqld
14750 be/4 mysql 0.00 B/s 0.00 B/s 0.00 % 0.14 % mysqld
14764 be/4 mysql 0.00 B/s 7.81 K/s 0.00 % 0.05 % mysqld
1 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % init
2 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kthreadd]
3 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/0]
5 be/0 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kworker/0:0H]
7 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [rcu_sched]
8 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [rcu_bh]
9 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [migration/0]
10 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/0]

 

 

root@h:~# iotop --help
unable to set locale, falling back to the default locale
Usage: /usr/sbin/iotop [OPTIONS]

DISK READ and DISK WRITE are the block I/O bandwidth used during the sampling
period. SWAPIN and IO are the percentages of time the thread spent respectively
while swapping in and waiting on I/O more generally. PRIO is the I/O priority at
which the thread is running (set using the ionice command).

Controls: left and right arrows to change the sorting column, r to invert the
sorting order, o to toggle the --only option, p to toggle the --processes
option, a to toggle the --accumulated option, i to change I/O priority, q to
quit, any other key to force a refresh.

Options:
--version show program's version number and exit
-h, --help show this help message and exit
-o, --only only show processes or threads actually doing I/O
-b, --batch non-interactive mode
-n NUM, --iter=NUM number of iterations before ending [infinite]
-d SEC, --delay=SEC delay between iterations [1 second]
-p PID, --pid=PID processes/threads to monitor [all]
-u USER, --user=USER users to monitor [all]
-P, --processes only show processes, not all threads
-a, --accumulated show accumulated I/O instead of bandwidth
-k, --kilobytes use kilobytes instead of a human friendly unit
-t, --time add a timestamp on each line (implies --batch)
-q, --quiet suppress some lines of header (implies --batch)
root@h:~#

root@h:~# iotop -P
unable to set locale, falling back to the default locale
Total DISK READ : 0.00 B/s | Total DISK WRITE : 986.76 K/s
Actual DISK READ: 0.00 B/s | Actual DISK WRITE: 1256.95 K/s
PID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
188 be/3 root 0.00 B/s 0.00 B/s 0.00 % 5.64 % [jbd2/vda1-8]
14742 be/4 mysql 0.00 B/s 986.76 K/s 0.00 % 0.05 % mysqld
1 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % init
2 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kthreadd]
3 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/0]
5 be/0 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kworker/0:0H]
7 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [rcu_sched]
8 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [rcu_bh]
9 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [migration/0]
10 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/0]