Hi Sage, I found a thread discussing whether we could turn on disk cache with new kernel or not - http://www.spinics.net/lists/ceph-devel/msg06173.html >From within that thread, you mentioned that since the fsync/fdatasync would flush the disk cache as well, we could actually turn on the cache without worrying about the data safety. Is that true if journal_dio is being used (by default), in which case O_DIRECT | O_DSYNC is being used to write journal rather than fsync(2)? Thanks, Guang -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
