Call summary: Chris has been rewriting fsync to improve performance - 10X better multi-threaded scaling for regular files - directory fsync performance has not been addressed Ric noted that Josef's fine-granularity timer work in the main line could boost btrfs fsync performance. Eric has seen single stream write performance drop after v.15, his runs indicate allocator-induced stalls. Josef is working on allocator fix round 3... round 2 had regressions in some benchmarks. Chris proposed he try a design midway between the round 1 and round 2 code. Eric noted build problems with older kernels (2.16.18 ?) because of the btrfs NFS patch... needs volunteer to fix. Eric and Chris discussed testing using some of the xfs tests without using the complete harness suite. More plumber's conference discussion, Chris's btrfs talk will be fairly high level (as expected given where we are). Attendance is expected to be good on all days including the last day (so if I go, I won't leave early). How to set up the filesystem BOF is pending plumber's site update. -- 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
