Rahisto

[Carter Bullard]

%f is a floating point number.
u is microSeconds
m is milliSeconds
s is seconds
M is minutes
H is hours
D is days


It is impossible to know what a good bin size should be.  I suspect  
that it is some number
that will cover the values in the population of samples.

Say if you are interested in DNS response times, then I suspect that  
the (bin size * total bins)
should be around 0.5 seconds (at least for some DNS servers).

    -H 100:0-0.5s

For arp response times it should be no bigger than 10 milliseconds?

    -H 250:0-10m

For HTTP transaction durations somewhere in the seconds should cover  
most of them, etc ....

    -H 200:0-5s

who knows, its really up to the data, really!!!!

Carter


On Apr 16, 2007, at 6:28 AM, CS Lee wrote:

> Hey all,
>
> I'm looking at rahisto now, it seems to be interesting tool to me.  
> When I type rahisto -h, I don't seem to know this.
>
> syntax:  value-value
>                          value = %f[umsMHD] | %f[umKMG] depending  
> on metric type
>
> What is %f
>
> And umsMHD is for range and umsKMG is for size, can it be more  
> specify. For example M is Milisecond in range and Megabyte in size?
>
> Carter,
>
> Another thing I would like to know how you get the idea of which  
> bins value considered ideal for certain condition when performing  
> analysis. Looking at the graph from argus has given some idea to me  
> but I would like to know more about it if possible.
>
> Thanks.
>
> -- 
> Best Regards,
>
> CS Lee<geekooL[at]gmail.com>