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标题: 求助：SUN服务器执行iostat 结果字段意思 [打印本页]

作者: wkh818 时间: 2008-12-24 15:11
标题: 求助：SUN服务器执行iostat 结果字段意思
在SUN服务器执行iostat 结果字段不知道是什么意思。本人初学。下面是执行结果：
bash-2.05$ iostat
tty       md0          md1          md9          md10          cpu
tin tout kps tps serv  kps tps serv  kps tps serv  kps tps serv us sy wt id
0 27 0 0 41 0 0 37 0 0 67 0 0 28 0  0  0 100
bash-2.05$ iostat -xn
                  extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t  %w  %b device
0.0 0.1 0.0 0.3  0.0  0.0 10.1 30.8 0 0 d0
0.0 0.0 0.0 0.0  0.0  0.0 0.3 36.5 0 0 d1
0.0 0.0 0.0 0.0  0.0  0.0 0.5 66.7 0 0 d9
0.0 0.1 0.0 0.3  0.0  0.0 0.0 28.4 0 0 d10
0.0 0.0 0.0 0.0  0.0  0.0 0.0 31.7 0 0 d11
0.0 0.0 0.0 0.0  0.0  0.0 0.0 65.5 0 0 d19
0.0 0.1 0.0 0.3  0.0  0.0 0.0 27.6 0 0 d20
0.0 0.0 0.0 0.0  0.0  0.0 0.0 39.6 0 0 d21
0.0 0.0 0.0 0.0  0.0  0.0 0.0 9.3 0 0 d29
0.0 0.0 0.0 0.0  0.0  0.0 0.0 0.0 0 0 c2t6d0
0.0 0.0 0.0 0.0  0.0  0.0 0.1 6.4 0 0 c0t3d0
0.0 0.2 0.0 0.4  0.0  0.0 0.9 28.0 0 0 c0t0d0
0.0 0.0 0.0 0.0  0.0  0.0 57.2 9.8 0 0 c0t1d0
0.0 0.0 0.0 0.0  0.0  0.0 0.5 6.5 0 0 c1t5d0
0.0 0.2 0.0 0.4  0.0  0.0 0.9 27.8 0 0 c1t4d0
0.0 0.0 0.0 0.0  0.0  0.0 0.1 6.0 0 0 c1t7d0
0.0 0.0 0.0 0.0  0.0  0.0 0.0 2.4 0 0 c1t6d0
0.0 0.0 0.0 0.0  0.0  0.0 0.1 5.9 0 0 c0t2d0
0.0 0.0 0.0 0.0  0.0  0.0 0.0 0.3 0 0 if-dt:vold(pid329)

r/s w/s kr/s kw/s wait actv wsvc_t asvc_t  %w  %b device这些都是什么意思呢？

作者: free4us 时间: 2008-12-25 11:21
r/s 读每秒
W/S 写每秒，其他的就这样翻译理解吧

作者: free4us 时间: 2008-12-25 11:22
一下是man iostat 的内容
EXAMPLES
   Example 1: Using the iostat command

   example% iostat -xtc 5 2

                     extended device statistics       tty       cpu
   device r/s  w/s kr/s  kw/s wait actv svc_t %w  %b  tin tout  us sy wt id
   sd0 0.4  0.3 10.4 8.0  0.0  0.0  36.9  0 1 0 10 0  0  1 99
   sd1 0.0  0.0  0.3 0.4  0.0  0.0  35.0  0 0
   sd6 0.0  0.0  0.0 0.0  0.0  0.0 0.0  0 0
   nfs1 0.0  0.0  0.0 0.0  0.0  0.0 0.0  0 0
   nfs2 0.0  0.0  0.0 0.1  0.0  0.0  35.6  0 0
               extended device statistics             tty       cpu
   device r/s  w/s  kr/s  kw/s wait actv svc_t %w  %b tin tout  us sy wt id
   sd0 0.0  0.0  0.0 0.0  0.0  0.0  0.0 0 0 0  155 0  0  0 100
   sd1 0.0  0.0  0.0 0.0  0.0  0.0  0.0 0 0
   sd6 0.0  0.0  0.0 0.0  0.0  0.0  0.0 0 0
   nfs1 0.0  0.0  0.0 0.0  0.0  0.0  0.0 0 0
   nfs2 0.0  0.0  0.0 0.0  0.0  0.0  0.0 0 0

SunOS 5.9          Last change: 28 Oct 2001                   3

System Administration Commands                      iostat(1M)

   device
         name of the disk

   r/s reads per second

   w/s writes per second

   Kr/s  kilobytes read per second

   Kw/s  kilobytes written per second
wait  average number of  transactions  waiting  for  service
         (queue length)

   actv  average number of transactions actively being serviced
         (removed from the queue but not yet completed)

   svc_t average service time, in milliseconds

   %w percent of time there  are  transactions  waiting  for
         service (queue non-empty)

   %b percent of time the disk is busy (transactions in pro-
         gress)

   Example 2: Using the iostat command

   example% iostat -xnp

                  extended device statistics
   r/s  w/s  kr/s kw/s wait actv wsvc_t asvc_t %w %b device
   0.4  0.3  10.4  7.9  0.0  0.0 0.0 36.9  0  1 c0t0d0
   0.3  0.3 9.0  7.3  0.0  0.0 0.0 37.2  0  1 c0t0d0s0
   0.0  0.0 0.1  0.5  0.0  0.0 0.0 34.0  0  0 c0t0d0s1
   0.0  0.0 0.0  0.1  0.0  0.0 0.6 35.0  0  0 expositor:/export/home3/user3

   The fields have the same meanings as in the  previous  exam-
   ple, with the following additions:

   wsvc_t
         average service time in wait queue, in milliseconds

   asvc_t
         average service  time  active  transactions,  in  mil-
         liseconds

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