RDMA is buggy and Thunderbolt only delivers 1/10th the throughput of native conn... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

tristor 32 days ago | parent | context | favorite | on: New Mac Studio with M5 Max and M5 Ultra

RDMA is buggy and Thunderbolt only delivers 1/10th the throughput of native connectivity. 1TB of Unified Memory w/ 1.2TB/s of bandwidth with marginally ~$30k cost is a different story than 1TB of sorta Unified Memory w/ an effective 120GB/s of bandwidth with a marginally ~$40k cost + all the RDMA bugs.

Lwerewolf 32 days ago [–]

You need latency for token parallelism, not bandwidth. Hence actual RDMA that bypasses the software TCP stack (ROCe or whatever).

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact