[mrtg] 14all.cgi & routers.cgi very slow

Brander, Eric Eric.Brander at ACS-INC.com
Wed Dec 18 13:59:27 MET 2002

I was considering making the transition to RRD from Rateup, but the
performance of the CGI's on both RedHat 8 and IIS is just too poor to bear.
My Cisco 4006 with 72 interfaces, graphing traffic, errors and discards on
each interface, doesn't even get 1/3rd complete when it times out building
the graphs.  Heck, even my 2600 router with two interfaces and a CPU graph
(7 graphs total) takes 25 seconds to load, and another 20 seconds to bring
up the page with daily, weekly, monthly, and yearly statistics.  These
measurements are using the latest 14all.cgi on RedHat8, but I encounter
similar performance on IIS.  Routers.cgi... well, its just hella slow, and I
don't care for the interface so the point is moot there.  14all is the cgi
for me, but is there anything I can do to speed up the performance?  My Red
Hat 8 machine is a P3 600mhz with 384 meg ram.  Its NOT running Xwin.

When the graphs are being built, top reports that 14all.cgi is the one
sucking the resources.  I would have expected it to report perl as the one,
or even rrd, but those don't even show up in top... so its difficult (for
me) to pinpoint the actual culprit.  

Any pointers from your mrtg/rrd/cgi gurus out there?


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