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In C++, everytime someone writes ">> 3" instead of "/ 8", I bet the compiler is like, "OH DAMN! I would have never thought of that!"

(@jonshiring)


Sep
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Jan
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Oct
1
comment Dual port NICs for cluster
10 ports is great, but only if you have a lot of independent connections (at least 250 say), otherwise you're going to struggle to balance the flow across all the ports. At that point you should really just use a single 10Gbps adapter.
Oct
1
comment Dual port NICs for cluster
If they're good quality PCI-Express NICs and you're aggregating then around 4Gbps and around 6Gbps. If you're teaming for redundancy then 2Gbps and 2Gbps. It'll definitely scale perfectly with the number of adapters/ports (multi-port adapters are just multiple adapters on one board with a PCI-Express switch normally). There will be some overhead due to framing, this is a constant factor and is protocol dependent. There will be some overhead due to interrupts and teaming, this depends on your application.
Sep
30
comment Dual port NICs for cluster
You need to figure out what your application requires. If you can get away with a 1Gbit adapter just use two teamed up for redundancy, but that's only worth doing if you have redundant switching. If 1Gbps isn't enough and you need redundancy then you'll need dual 10Gbps. There's no point failing onto a setup that won't handle the load, and there's no point having 10 times more capacity than you need. Maybe 1Mbps is enough for your application, if so stick with gigabit.
Sep
29
answered Dual port NICs for cluster