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I'm starting to test it in co-processor mode. The main limit is.. Intel is dragging their feet on PCIe bandwidth (probably to curtail GPGPU a bit), and you nee
by kev009 9y ago
I'm starting to test it in co-processor mode. The main limit is.. Intel is dragging their feet on PCIe bandwidth (probably to curtail GPGPU a bit), and you need a lot of BW for co-processor up and down and then back out the pipe. But it's enough for my needs at the moment.
https://www.chelsio.com/wp-content/uploads/resources/T6-100G-Coprocessor-Linux.pdf https://www.chelsio.com/wp-content/uploads/resources/T6-100G...
- drewg123 9y agoAt least for broadwell based Xeons with just 2 memory controllers, our main bottleneck is memory bandwidth. And co-processor cards haven't really helped us much. The same memory accesses need to happen. The difference is that with a co-processor, they're done via DMA rather than via memory reads and writes. Intel has gotten so good with crypto in the recent chips that, at least for GCM, we didn't find much advantage to using add-in accelerators.
- shaklee3 9y agoHave you considered Skylake? The 6 memory channels should easily put you above 100Gbps now.