Concurrent transactions - ragraph question

[Rafael Barbosa]

Hi,

My understanding is that the original version indeed calculates trans/sec.
Thanks for the patch, but I am not sure if counting the total transactions
is better than having trans/sec. It was just a problem of understanding the
graph, rather than a request for change.

Actually I think that graphing trans/sec makes the tool consistent with
other measures: selecting pkts gives you pkts/sec and bytes, bytes/sec.

Rafael

On Thu, Jun 17, 2010 at 8:37 PM, Carter Bullard <carter at qosient.com> wrote:

> Hey Rafael,
> It does look, from the code, that it is trans/sec.  We have explicit
> code for controlling that, and it looks like "Trans" doesn't correct for
> the the GAUGE/AVERAGE artifacts rrd and rrd_graph generates.
>
> If you make this change to ragraph():
>
> thoth:~ carter$ diff `which ragraph` /tmp/ragraph
> 1093c1093
> <          /Trans/    and do {$power[$x] = 1.0 ; };
> ---
> >          /Trans/    and do {$power[$x] = $STEP ; };
>
> It will graph the actual 'trans' value in each time bin.
>
> Carter
>
>
> On Jun 17, 2010, at 10:29 AM, Rafael Barbosa wrote:
>
> I have being discussing the results with some colleagues here. Probably the
> result I am having is flows/sec, and not the total number of flows in the
> period. I believe the program counts the number of active flows in the
> interval (in my case 5min) and calculating "flows/sec".
>
> I will run with the debug option to see if I can confirm this (or not)...
>
> Thanks for the timely reply.
>
> Rafael
>
> On Thu, Jun 17, 2010 at 4:17 PM, <carter at qosient.com> wrote:
>
>> Hey Rafael,
>> That maybe an artifact of rrd and rrd_graph.
>> You can run ragraph with --debug and it will show you all the numbers get
>> into the rrd.
>>
>> The particular command you are using is the simple example and the least
>> efficient. Try "-m srcid" and the numbers may get around the rrd issues, and
>> the debug output should help you see what is gong on.
>>
>> Carter
>>
>> Sent from my Verizon Wireless BlackBerry
>> ------------------------------
>> *From: * Rafael Barbosa <rrbarbosa at gmail.com>
>> *Date: *Thu, 17 Jun 2010 11:58:47 +0200
>> *To: *<argus-info at lists.andrew.cmu.edu>
>> *Subject: *[ARGUS] Concurrent transactions - ragraph question
>>
>> Hi all,
>>
>> I have been testing some of the argus examples present in the wiki, and
>> one of the outputs called my attention. After analyzing the output of:
>>
>>
>>  ragraph trans -M 10s -r $file - title 'Concurrent Transactions' -w transac.png2
>>
>>
>> for a file I have, I get a graph with the number of concurrent
>> transactions, but for my surprise I don't get an integer number of
>> transactions. How is it possible to have around 13.2 concurrent
>> transactions? How does argus calculate this value?
>> By the way, there is a small typo in the the wiki for this command. There
>> is a space in "- title".
>>
>> Best regards,
>> Rafael Barbosa
>>
>
>
> Carter Bullard
> CEO/President
> QoSient, LLC
> 150 E 57th Street Suite 12D
> New York, New York  10022
>
> +1 212 588-9133 Phone
> +1 212 588-9134 Fax
>
>
>
>
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