Requests per Second

[Jim Ohlstein]

Hector Danniel Paz Trillo wrote:
> Hi,
> 
> I'm using stub_status module as a source collect metrics from my nginx
> servers. I'm doing this:
> 
> (1) wget the stats page
> (2) wait 1 second
> (3) wget the stats page again
> (4) Get the difference of the requests value from (3) and (1) to get
> requests per second.
> 
> Am I doing right? I am also collecting Active Connections and want to
> understand which of these values will give me a better idea on what's
> happening in my servers during high load/traffic hours.
> 

For seeing nice graphs I use Munin with the nginx modules installed. You 
can see attached for sample of daily and weekly graphs. There is also a 
module for nginx memory usage.

For up to the second information I use the python script referenced at 
http://hostingfu.com/article/quick-nginx-status-script. This will give 
data like this:

Conn     Conn/s     Request/s  Read  Write Wait
-------- ---------- ---------- ----- ----- -----
486      21.80      47.90   	152    75   259
476      17.70      59.80   	149    54   273
448      18.20      43.90   	133    56   259
428      18.30      46.90   	124    68   236
-------- ---------- ---------- ----- ----- -----
459      19.00      49.62   	139    63   256


-- 
Jim Ohlstein
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