Re: [sheepdog] [PATCH v4 0/4] sheep: writeback cache semantics in backend store

2012-09-07 Thread MORITA Kazutaka
At Fri, 7 Sep 2012 14:25:50 +0900, Hitoshi Mitake wrote: This patch series implements writeback cache semantics in backend store of sheep. Current backend store farm and plain_store calls open() with O_DSYNC, so every object write causes slow disk access. This patch series try to reduce

Re: [sheepdog] [PATCH v4 0/4] sheep: writeback cache semantics in backend store

2012-09-07 Thread Hitoshi Mitake
(2012/09/07 16:08), MORITA Kazutaka wrote: At Fri, 7 Sep 2012 14:25:50 +0900, Hitoshi Mitake wrote: This patch series implements writeback cache semantics in backend store of sheep. Current backend store farm and plain_store calls open() with O_DSYNC, so every object write causes slow disk

Re: [sheepdog] [PATCH v4 0/4] sheep: writeback cache semantics in backend store

2012-09-07 Thread Hitoshi Mitake
(2012/09/07 16:09), Hitoshi Mitake wrote: (2012/09/07 16:08), MORITA Kazutaka wrote: At Fri, 7 Sep 2012 14:25:50 +0900, Hitoshi Mitake wrote: This patch series implements writeback cache semantics in backend store of sheep. Current backend store farm and plain_store calls open() with

[sheepdog] [PATCH v4 0/4] sheep: writeback cache semantics in backend store

2012-09-06 Thread Hitoshi Mitake
This patch series implements writeback cache semantics in backend store of sheep. Current backend store farm and plain_store calls open() with O_DSYNC, so every object write causes slow disk access. This patch series try to reduce this overhead with flushing disk cache with the invocation of