3 ms·
I wonder why this sort of thing seems to be thought radical. Infiniband RDMA well estabilshed, with low latency and high bandwidth. (There was DMA between the m
by gnufx 7y ago
I wonder why this sort of thing seems to be thought radical. Infiniband RDMA well estabilshed, with low latency and high bandwidth. (There was DMA between the micro-kernel-ish systems we used in the 1980s which got basically Ethernet line speed on <1 MIPS systems, as I recall; I assume it wasn't a new idea then.)
- StillBored 7y agoand fibrechannel, and various other protocols too. The point being that ethernet+IP/TCP is uniquely poor/difficult at offload and the minimum packet sizes are tiny. TCP is genius for a WAN, but unlike most things designed in the past 25 or so years, robustness precedes performance.
- gnufx 7y agoKernel bypass isn't the same thing as offload. I don't understand "minimum packet sizes are tiny". The 1980s system was driving Ethernet, just not with Unix/sockets.