RE: Formats for log files

["Bill Hooper (whooper)" <whooper@xxxxxxxxxx>]

Thanks for the information. I suspected that was the format. I do notice that I do not always have the block size in the log. I am using version 2.0 and will try a more recent version.

It appears that when I set the numjobs parameter the log files will contain the data from each job concatenated. I also notice that the times for each job is not synchronized between jobs. The question is how do I merge the data from each job to consolidate the data?

Bill Hooper
Micron

> -----Original Message-----
> From: fio-owner@xxxxxxxxxxxxxxx [mailto:fio-owner@xxxxxxxxxxxxxxx] On
> Behalf Of Josh Carter
> Sent: Wednesday, February 15, 2012 5:26 PM
> To: Bill Hooper (whooper); fio@xxxxxxxxxxxxxxx
> Subject: Re: Formats for log files
> 
> Bill,
> 
> Format of entries is:
> 
>   time, rate/latency, data direction, block size
> 
> Time: in milliseconds. Bandwidth logs are usually 500 or 1000ms apart; that
> can be controlled by the config file with "bwavgtime=[x ms]".
> 
> Rate/latency: for bandwidth, this is in KB/sec. For latency, it's
> microseconds.
> 
> Data direction: 0 is read, 1 is write.
> 
> Block size: block size of IOs in bytes.
> 
> For those using R to analyze log files, I have some useful stuff here:
> 
>   https://github.com/joshcarter/fio_tools
> 
> In particular, /analysis/fio_log_parsers.R has read_bw_log() and
> read_lat_log() functions.
> 
> Best regards,
> Josh
> 
> On Feb 15, 2012, at 2:42 PM, Bill Hooper (whooper) wrote:
> 
> > Where can I find documentation for the format of the write_bw_log,
> write_iops_log, and write_lat_log output?
> >
> > Bill Hooper
> > Micron
> > --
> > To unsubscribe from this list: send the line "unsubscribe fio" in
> > the body of a message to majordomo@xxxxxxxxxxxxxxx
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> --
> To unsubscribe from this list: send the line "unsubscribe fio" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe fio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html