<div><br></div>Thanks Dimitry, that was what I needed :)<div><br></div><div><br></div><div><br></div><div>Regards</div><div>--Shahab<br><br><div class="gmail_quote">On 11 May 2012 21:27, Dmitry Kurochkin <span dir="ltr"><<a href="mailto:dmitry.kurochkin@measurement-factory.com" target="_blank">dmitry.kurochkin@measurement-factory.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">shahab bakhtiyari <<a href="mailto:shahab371@gmail.com">shahab371@gmail.com</a>> writes:<br>
<br>
> Thank you Dimitry<br>
><br>
> well I dont think that I'll go for making my own distribution, rather I<br>
> use the existing ones. But I need a little documentation about existing<br>
> ones, like zipf(64) , I have no idea how large it is? the only thing<br>
</div>> I found says : "Zipf(1): *zipf(world_size)*" . its alittle bit unclear<br>
<div class="im">> for me, is there any documentation for that?<br>
><br>
<br>
</div>A list of distributions and their parameters is available at [1]. You<br>
can find information on a particular distributions on wikipedia or other<br>
resources (e.g. Zipf's law [2]). Note that Polygraph's implementation<br>
may not match exactly the mathematical formula. You can test particular<br>
parameters for Polygraph distributions using distr-test tool (installed<br>
as polygraph-distr-test(1)), e.g. to see what values zipf(64) would<br>
produce run:<br>
<br>
$ polygraph-distr-test --distr 'zipf(64)'<br>
<br>
It would generate 100000 values (by default) and print histogram, mean,<br>
min, max values and some other information.<br>
<br>
Regards,<br>
Dmitry<br>
<br>
[1] <a href="http://www.web-polygraph.org/docs/reference/pgl/types.html#type:docs/reference/pgl/types/distr" target="_blank">http://www.web-polygraph.org/docs/reference/pgl/types.html#type:docs/reference/pgl/types/distr</a><br>
[2] <a href="http://en.wikipedia.org/wiki/Zipf's_law" target="_blank">http://en.wikipedia.org/wiki/Zipf's_law</a><br>
<div class="HOEnZb"><div class="h5"><br>
> On 11 May 2012 18:39, Dmitry Kurochkin <<br>
> <a href="mailto:dmitry.kurochkin@measurement-factory.com">dmitry.kurochkin@measurement-factory.com</a>> wrote:<br>
><br>
>> Hi Shahab.<br>
>><br>
>> shahab bakhtiyari <<a href="mailto:shahab371@gmail.com">shahab371@gmail.com</a>> writes:<br>
>><br>
>> > Hi guys<br>
>> ><br>
>> > Yet another question for me(thank you very very much for previous<br>
>> > responses),<br>
>> ><br>
>> > I am wondering if the objects' size used in webaxe-1(or generally in all<br>
>> )<br>
>> > workload(s) are realistic? or how much they are close to true size?<br>
>> ><br>
>> > I mean , using exp(4.5kb) with mean4.5kb and max 53kb for image<br>
>> > objects sounds too little, is'nt that?<br>
>> > or 300kb for downloads? am I totally wrong?<br>
>> ><br>
>><br>
>> You may be right. I do not think these sizes match average object or<br>
>> image on the Internet. But usually what you are interested in is<br>
>> simulating *your* traffic properties.<br>
>><br>
>> The numbers in the provided workloads should be a good starting point.<br>
>> But for best results you should create distributions that match your<br>
>> needs. See [1] for details on user-defined distributions. Creating<br>
>> proper distributions for your tests may be difficult. You will need<br>
>> some existing data for it (e.g. Squid access logs). Then you analyze it<br>
>> with some auxiliary tools to get percentages for distributions (for<br>
>> Squid access logs you might use access2pgl tool from<br>
>> src/tools/access2poly/).<br>
>><br>
>> Regards,<br>
>> Dmitry<br>
>><br>
>> [1] <a href="http://www.web-polygraph.org/docs/reference/tabdistr.html" target="_blank">http://www.web-polygraph.org/docs/reference/tabdistr.html</a><br>
>><br>
>> > thank you<br>
>> > --Shahab<br>
>> > _______________________________________________<br>
>> > Users mailing list<br>
>> > <a href="mailto:Users@web-polygraph.org">Users@web-polygraph.org</a><br>
>> > <a href="http://www.web-polygraph.org/mailman/listinfo/users" target="_blank">http://www.web-polygraph.org/mailman/listinfo/users</a><br>
>><br>
</div></div></blockquote></div><br></div>