Dunno about that specific question, but I can say: 1. tcpreplay isn't multi-threaded so you only need as many cores as you have tcpreplay processes... plus maybe one more for OS stuff?
2. Memory usage will be dependent on if you use the --enable-file-cache option & size of pcaps. If you don't use it or only for small pcap files, then you shouldn't need a lot of memory 3. Version 4.x should be faster and likely require fewer CPU resources and have less overhead 4. No idea about the Broadcom chips- I usually tested with Intel. Earlier Broadcom chips/drivers had issues for me. -- Aaron Turner http://synfin.net/ Twitter: @synfinatic Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. -- Benjamin Franklin On Wed, Dec 10, 2014 at 11:23 AM, Alexander Ho <[email protected]> wrote: > Hi everyone, > > I'd like to consider scaling out tcpreplay to bigger and beefier hardware in > our lab. This way, instead of having multiple pizza boxes with 4x 1GB > ports, I'd like to have a single 2RU box (or multiple 2RU boxes) with way > more ports available to save on opex costs per port. > > We use tcpreplay primarily to test application detection in our devices, > with occasional performance testing (though my users can use our actual > traffic generators for load, so I don't have to concentrate too much on > performance.) One of the issues I'm finding so far is that users don't > really need the entire server, but typically only two ports connected to the > DUT. In order to give us better scalability, I'd like to have a single 2RU > server with up to 24x 1GB ports (which would hopefully beat the hell out of > having to manage, say, 6 servers with 4 ports apiece.) > > > Right now, we're running Dell PowerEdge R320s with 4 cores @ 2.50gHz, 16 GB > of RAM, and 4x 1GB ports (Broadcom 5719 network adapters, if you're > curious.) We're also running Ubuntu 14.04.1 LTS x64 and tcpreplay 3.4.4. > This seems to work fine so far, and I want to see how much more we can scale > out. The question is: has anyone ever scaled out even higher than that? > I'm thinking a 2RU PowerEdge R720 since I should be able to slap in six PCIe > cards, and I'm also thinking Broadcom 5719 network adapters as well. > > Thanks, > Alex > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > _______________________________________________ > Tcpreplay-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/tcpreplay-users > Support Information: http://tcpreplay.synfin.net/trac/wiki/Support ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Tcpreplay-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/tcpreplay-users Support Information: http://tcpreplay.synfin.net/trac/wiki/Support
