Hi, I use "ionice -c 3 <command>" to run some low-priority background tasks (i.e. tar, big file copies, or performing checksums sur very big files) using the disk "only when idle", which would be supposed to have very little impact on my system performance meanwhile.
I can be pretty sure that those tasks are I/O-bound and use very little CPU (and they are niced as well, anyway). However, when such tasks are running my BTRFS system slows down to a crawl, becomes very very unresponsive, and it seems to me that disk I/O is completely saturated (LED is fixed lit...) So I wonder if BTRFS correctly support ionice, or if it's plain useless ? TIA Kind regards. -- Swâmi Petaramesh <sw...@petaramesh.org> http://petaramesh.org PGP 9076E32E Ne cherchez pas : Je ne suis pas sur Facebook. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
