Re: Stats log

Are you saying you want updates every few seconds or just at the end of the
run? If you just want it at the end of the run the --minimal command line
flag gives you tabular output. Check the HOWTO for the format.

On Fri, Sep 26, 2008 at 12:27 PM, Jenkins, Lee <Lee.Jenkins_at_hp.com> wrote:

> I'd like to propose a stats-log option for fio. The log would contain the
> statistics that appear on stdout but in a tabular form where each line (row)
> represents a job and the stats are delimited (user-specifiable, comma by
> default). The first line of the stats file could contain column headers for
> parser identification. For example:
>
> job name,iodepth,iops,read iops,write iops,bw,read bw,write bw,avg lat,avg
> read lat,avg write lat,max lat,max read lat,max write lat, …etc.
>
> Yes, I know this can be done by applying a filter to stdout -- I have
> actaully already written a perl filter that does just that. However, when
> stdout is redirected there is no on-screen notification of test progress or
> current stats. On-screen display is quite handy when you want to spot-check
> bw rates on job-batches that take several hours to complete. This is the
> real essence of this proposal: simultaneous on-screen and log-file recording
> of statistics. I used tee, but there is still no real-time indication of the
> data rate, or even which job is running.
>
> Also, I'd like to request that all the stats be displayed as floating-point
> real numbers. Some are currently integers (iops, max latency, etc.), which
> is fine when there are several digits but not for single-digit values.
>
> Lee Jenkins
> HP Server Storage Performance
>
>
>
Received on Fri Sep 26 2008 - 21:45:43 CEST