On Fri, 2014-01-03 at 23:54 +-0800, fengguang.wu+AEA-intel.com wrote: +AD4- Hi Josef, +AD4- +AD4- FYI. We are doing 0day performance tests and happen to notice that +AD4- btrfs write throughput increased considerably during v3.10-11 time +AD4- frame: +AD4- +AD4- v3.10 v3.11 v3.12 v3.13-rc6 +AD4- --------------- ------------------------- ------------------------- ------------------------- +AD4- 50619 +AH4- 1+ACU- +-17.0+ACU- 59209 +AH4- 2+ACU- +-18.8+ACU- 60159 +AH4- 2+ACU- +-20.5+ACU- 61007 +AH4- 0+ACU- lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-btrfs-1dd +AD4- 50619 +-17.0+ACU- 59209 +-18.8+ACU- 60159 +-20.5+ACU- 61007 TOTAL iostat.sdd.wkB/s +AD4- +AD4- and it's contributed by +AD4- +AD4- commit 1be41b78bc688fc634bf30965d2be692c99fd11d +AD4- Author: Josef Bacik +ADw-jbacik+AEA-fusionio.com+AD4- +AD4- AuthorDate: Wed Jun 12 13:56:06 2013 -0400 +AD4- Commit: Josef Bacik +ADw-jbacik+AEA-fusionio.com+AD4- +AD4- CommitDate: Mon Jul 1 08:52:28 2013 -0400 +AD4- +AD4- Btrfs: fix transaction throttling for delayed refs Bonus points for increasing the performance on purpose. Thanks for running these Wu. -chris -- 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
