#26 Normal distribution data patterns for IOMeter

open
nobody
None
5
2014-02-07
2012-11-16
Anonymous
No

For testing caching solutions, normal IOMeter is ineffective since the data is 100% random and there is no hot data to cache. IOMeter should have settings (or a version?) to allow various non-random patterns, such as a normal distribution.

Related

Feature Requests: #26

Discussion

  • Martin Werner

    Martin Werner - 2013-07-15

    Does anyone else have the demand for this feature? Do you mean something like a gaussian curve normal distribution
    Or is it sufficient and realistic enough to add some kind of locality or skew (% of IOs go to % of space)?

     
  • Brian Martin

    Brian Martin - 2014-02-07

    I have prototyped changes for precisely this purpose, using the concept of locality of reference (LOR) for reads and writes. I would definitely like to pursue this conversation. LOR is more representative of real world applications, and will be important for testing many of the newly emerging storage architectures.

     
    • Vedran Degoricija

      Hi Brian,

      Thanks! We are open to all contributions.  Please send me your implementation and we will review it.

      Thanks,
      Ved

      On Thursday, February 6, 2014 7:55 PM, Brian Martin kestrelv@users.sf.net wrote:

      I have prototyped changes for precisely this purpose, using the concept of locality of reference (LOR) for reads and writes. I would definitely like to pursue this conversation. LOR is more representative of real world applications, and will be important for testing many of the newly emerging storage architectures.


      [feature-requests:#26] Normal distribution data patterns for IOMeter
      Status: open
      Created: Fri Nov 16, 2012 07:12 PM UTC by Anonymous
      Last Updated: Mon Jul 15, 2013 09:16 AM UTC
      Owner: nobody
      For testing caching solutions, normal IOMeter is ineffective since the data is 100% random and there is no hot data to cache. IOMeter should have settings (or a version?) to allow various non-random patterns, such as a normal distribution.


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      Related

      Feature Requests: #26


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