[Bug 271772] [NEW] iostat -k units are wrong when using large blocks

[Alain Baeckeroot]

Public bug reported:

Binary package hint: sysstat

iostat guesses that block are 512 bytes, but with large ext3 filesystems
we use 4kB (or more)

=> iostat -k is completely false
$ tune2fs -l /dev/sdb1| grep "Block size"
Block size:               4096

$ iostat       #(report in blocks/s)
Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sdb              23,14       518,67       411,56 2463660668 1954925512

$ iostat -k     #(report _should_ be in kBytes/s) 
Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
sdb              23,14       259,33       205,79 1231830758  977507292


========================
$ lsb_release -rd
Description:    Ubuntu 8.04.1
Release:        8.04

$ apt-cache policy sysstat
sysstat:
  Installé : 8.0.3-1ubuntu1
  Candidat : 8.0.3-1ubuntu1
 Table de version :
 *** 8.0.3-1ubuntu1 0
        500 http://de.archive.ubuntu.com hardy/main Packages
        100 /var/lib/dpkg/status
===========================

** Affects: sysstat (Ubuntu)
     Importance: Undecided
         Status: New

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iostat -k units are wrong when using large blocks
https://bugs.launchpad.net/bugs/271772
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