Announcement

Collapse
No announcement yet.

strange iozone result

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • strange iozone result

    Hi

    Using pts 3.8 I got some strange iozone results when testing the read performace.

    Choosing the 4Kb record size option iozone reported that the average read performance was 1000 MB/s.
    When the record size was bigger then the average result was 30 MB/s.

    /System info: 80 GB Seagate ST98823A, Linux 3.2.11, encrypted ext3/

    My question is why did iozone show obviously bad results when choosing the smallest record size?

  • #2
    For IOzone you should be using a write/read size at least twice the RAM capacity.
    Michael Larabel
    http://www.michaellarabel.com/

    Comment


    • #3
      I have 2GB ram so I set the file size to 4GB, now the results are between the expected range.

      Thanks Michael.

      Comment

      Working...
      X