In docs/FAQ and the back traffic for this list, we've frequently discussed ntop and memory usage. Reading that will give you a basis for framing reasonable questions...
We've also discussed swap space (very bad) and the FreeBSD cpu issue (short answer for that one: get over it). >From docs/FAQ: Q4. I'm running out of memory. A. Basically ntop uses a lot of memory - it stores a chunk of information about each and every host it's monitoring. See "Q. Why does ntop use so much memory ?" and the following articles below. Re cpu, read the answer beginning: A. Also, understand that --set-pcap-nonblocking is going to increase ntop's cpu usage. It will probably come close to pegging the CPU at 100%. Yet strangely other processes won't seem to be impacted. (Of course, you really should be running ntop on it's own host, anyway, right?). (FreeBSD 5.x just automates this process, so you don't need the switch. It's still the same WRT userland threads). -----Burton -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Barbieri Sent: Wednesday, September 14, 2005 3:43 PM To: [email protected] Subject: [Ntop] Ntop and Netflows -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Howdy there. Ive been playting around with ntop and netflows, and I have to say, i really like how ntop presents the data. the one thing i dont like is how much cpu power / memory is uses. On a dual opteron system with 1GB of ram, the load was about a 5.4 running fedora core 4. the load was low, until all the free memory was eaten up and it started to use swap. I was wondering if there was a way to use ntop as a netflow collector, but not use so much memory. also, this is probably for the wrong list, but if anyone knows of another collector / displayer out there similar to ntop, that would be great to. Ive been trying to use other programs such as cflow, flow-tools, cu-flow, flowscan, flowd etc. They did not seem to do what I wanted to (not to mention none of them compiled for me either =/) any help would be greatly appreciated. thank you John Barbieri -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (MingW32) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFDKIs7ntjrPsCbhI4RAhyIAJ9MtJiJFel4zbYW2czF8wJLr2NiwQCeKUWO HMnPLNuis07+aSlfKzaAmoY= =rJ0d -----END PGP SIGNATURE----- _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
