Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn分别代表什么意思

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这个Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn分别代表什么意思

iostat -d 1 5

Linux 2.4.21-4.EL (t2) 02/21/

Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn

dev8-0 18.36 35.05 679.90 245142 4755754

dev8-1 1.33 0.71 7.99 4986 55856

dev8-2 0.32 0.65 0.00 4512 0

Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn

dev8-0 34.52 0.00 7704.76 0 6472

dev8-1 1.19 0.00 9.52 0 8

dev8-2 0.00 0.00 0.00 0 0

Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn

dev8-0 10.23 0.00 163.64 0 144

dev8-1 1.14 0.00 9.09 0 8

dev8-2 0.00 0.00 0.00 0 0

Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn

dev8-0 0.00 0.00 0.00 0 0

dev8-1 1.09 0.00 8.70 0 8

dev8-2 0.00 0.00 0.00 0 0

楼主 06-02-21 11:28<script language="JavaScript" type="text/javascript"> function doZoom3608048(size){ document.getElementById('text3608048').style.fontSize=size+'px' } document.getElementById('text3608048').style.fontSize='12px' </script>

楼主参见 man iostat

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2楼 06-02-21 12:29<script language="JavaScript" type="text/javascript"> function doZoom3608448(size){ document.getElementById('text3608448').style.fontSize=size+'px' } document.getElementById('text3608448').style.fontSize='12px' </script>

代码:

Blk_read/s

Indicatetheamountofdatareadfromthedriveexpressedinanum?

berofblockspersecond.Ablockisofindeterminatesize.

每秒读取的块数(可能报告的是个稍微和数据库内实际读取的有些差异,但大体上是准确的)

Blk_wrtn/s

Indicatetheamountofdatawrittentothedriveexpressedinanum?

berofblockspersecond.Ablockisofindeterminatesize.

同上,代表每秒写入的块数!

下面两个代表读取和写入的整个的块数!

Blk_read

Thetotalnumberofblocksread.

Blk_wrtn

Thetotalnumberofblockswritten.

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