[Kst] First time kst, plotting the grinder data

[Barth Netterfield]

Hi Thomas,

This is the second time this week that I have received a request for
this feature...  I will seriously consider adding awk style line
filters to data sources in the future, but for now, the best I can
offer is to work-around by pre-processing the file as you suggested.

It is totally reasonable to have this work real time.  For example
(you probably will need to fork a bunch of these - one for each test):

tail -f orig_file | awk '($3==1013101){print}' >> test1013101.out

and separately, open the file(s) with kst2 in count from end mode.

Not elegant though - I agree.  Sigh...
cbn

On Mon, Aug 8, 2011 at 11:53 AM,  <thomas at tfalkenberg.com> wrote:
> Hi everybody,
>
> this is my first approach with kst. I did some plotting with simple data and
> everything worked fine. But I don't know how to accomplish the following,
> more complex, use case. I have data from a load-test tool (The Grinder)
> which has the following ASCII format:
>
> Thread, Run, Test, Start time (ms since Epoch), Test time, Errors, HTTP
> response code, HTTP response length, HTTP response errors, Time to resolve
> host, Time to establish connection, Time to first byte
> 0, 0, 1013101, 1311843008835, 325, 0, 200, 5810, 0, 2, 9, 292
> 0, 0, 1013100, 1311843008828, 333, 0, 0, 0, 0, 0, 0, 0
> 0, 0, 1013201, 1311843012934, 103, 0, 200, 2636, 0, 2, 9, 100
> 0, 0, 1013200, 1311843012933, 104, 1, 0, 0, 0, 0, 0, 0
> 0, 0, 1013301, 1311843013098, 97, 0, 200, 2605, 0, 2, 9, 97
> 0, 0, 1013300, 1311843013096, 99, 0, 0, 0, 0, 0, 0, 0
> 0, 0, 1013401, 1311843013232, 67, 1, 200, 676, 0, 2, 9, 67
> 0, 0, 1013400, 1311843013231, 68, 0, 0, 0, 0, 0, 0, 0
> 0, 0, 1008101, 1311843013308, 218, 0, 200, 2044, 0, 2, 9, 218
>
> With the Data Wizard I can easily plot each column, using the "Start Time"
> for the x-axis vector.
> But what I would like to have (as a first step) is a curve/image for each
> "Test" (or even better: a configurable list of tests). E.g. a chart for Test
> 1013101 with "Test Time" as y-value, start time as x-value. Going one step
> further I would like to add the other colums to the "Test"-charts, mainly
> "Errors" (preferably accumulated in minute-intervals since it's only a
> binary value(0/1)) and "HTTP response length".
>
> If I could automate the generation and get a live view this would really be
> awesome, but I'm not sure if that is possible? I did think about
> pre-processing the file and splitting it up (one for each "Test"), but I
> would like to avoid that if possible.
>
> Is this a good scenario for kst or should I maybe look at other tools?
>
> Thanks a lot for your help,
> Thomas
>
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-- 
C. Barth Netterfield
University of Toronto
416-845-0946