Has anybody experimented with increasing the _number_ of buffers rather than the _size_ of the buffers when confronted with drops? I'm finding on a large(ish) system that it is better to have lots of small buffers handled by relay rather than fewer larger buffers. In my particular case: 16 CPUs 96 devices running some dd's against all the devices... -b 1024 or -b 2048 still results in drops but: -n 512 -b 16 allows things to run smoother. I _think_ this may have to do with the way relay reports POLLIN: it does it only when a buffer switch happens as opposed to when there is data ready. Need to look at this some more, but just wondering if others out there have found similar things in their testing... Alan -- To unsubscribe from this list: send the line "unsubscribe linux-btrace" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
