On Thu, Nov 16, 2017 at 09:53:15PM -0800, Marc MERLIN wrote: > > I suggest that you try lvmcache instead. It's much more flexible than bcache, > > does pretty much the same job, and has much less of the "hacky" feel to it. > > I can read up on it, it's going to be a big pain to convert from one to > the other, but I can look at it for new filesystems. I had a quick read. As expected, it's slower since it goes through all the LVM overhead that I got rid of recently https://github.com/stec-inc/EnhanceIO/wiki/PERFORMANCE-COMPARISON-AMONG-dm-cache,-bcache-and-EnhanceIO Given the pain it would be for me to switch, I'm going to stick with bcache and hope it improves. But just to be safe, I'm going to stick to this: echo writearound > /sys/block/bcache0/bcache/cache_mode Probably my issues were having writes go through bcache, writeback on one drive even. I'll go back to the safest setting and hope for the best. Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
