Ted and all, While using this FFSB test profile: http://btrfs.boxacle.net/repository/raid/2010-04-14_2004//ext4-2.6.34-rc3-nobarrier//btrfs1.ffsb.random_writes_odirect__threads_0128.10-04-21_17.38.39/benchmark/profile (The profile is 128 threads of all odirect random writes. ) on my raid box I am seeing (via Darricks block_barrier tracepoint) right about 32 barriers per second. Initial analysis using perf shows kdmflush as the cause. I will continue to look into this. Thanks, Keith Mannthey LTC FS-Dev -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
