3 ms·
I've been trying to track down randomly latency (> 1000ms) in the network stack between the socket buffer and the client for about 3 months now... All of the st
by matheweis 11y ago
I've been trying to track down randomly latency (> 1000ms) in the network stack between the socket buffer and the client for about 3 months now... All of the stack traces showed the app was stuck in futex_wait, but since it looked identical to an idle server, I'd convinced myself epoll_wait was at fault... All the sudden I'm wondering otherwise. We're not on Haswell though; it's not clear to me if the bug would affect other processors or not - can it?
- paulmd 11y agoThe guy in the article has only experienced it on Haswell. However, that doesn't mean that it doesn't exist elsewhere.
- matheweis 11y agoI noticed later that the actual kernel patch references arm64, so it's definitely not limited just to Haswell: https://github.com/torvalds/linux/commit/76835b0ebf8a7fe85beb03c75121419a7dec52f0 https://github.com/torvalds/linux/commit/76835b0ebf8a7fe85be...