[sage-berlin] Frage zu sysstat-Tools

[Florian Streibelt]

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'Philipp Grau' schrieb am 30.01.2007 16:26:

> Meine Man-Page sagt:
> 
>        -b     Report I/O and transfer rate statistics. This option works  only
>               with  kernels  older  than  2.5.   The following values are dis-
>               played:
> 

aha, meine warnt nicht davor und sagt ganz brav:

       -b     Report I/O and transfer rate statistics.  The following val-
              ues are displayed:

              tps
                     Total number of transfers per second that were issued
                     to physical devices.  A transfer is an I/O request to
                     a  physical  device. Multiple logical requests can be
                     combined into a single I/O request to the device.   A
                     transfer is of indeterminate size.

              rtps
                     Total  number  of  read requests per second issued to
                     physical devices.

              wtps
                     Total number of write requests per second  issued  to
                     physical devices.

              bread/s
                     Total  amount of data read from the devices in blocks
                     per second.  Blocks are equivalent  to  sectors  with
                     2.4  kernels  and  newer and therefore have a size of
                     512 bytes. With older kernels, a block is of indeter-
                     minate size.

              bwrtn/s
                     Total amount of data written to devices in blocks per
                     second.

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