Re: [PATCH 07/19] bcache: introduce bcache sysfs entries for ioprio-based bypass/writeback hints

2017-07-05 Thread Eric Wheeler
On Wed, 5 Jul 2017, Christoph Hellwig wrote: > On Fri, Jun 30, 2017 at 01:42:56PM -0700, bca...@lists.ewheeler.net wrote: > > From: Eric Wheeler > > > > Add sysfs entries to support to hint for bypass/writeback by the ioprio > > assigned to the bio. If the bio is unassigned, use current's io-con

Re: [PATCH 07/19] bcache: introduce bcache sysfs entries for ioprio-based bypass/writeback hints

2017-07-05 Thread Christoph Hellwig
On Fri, Jun 30, 2017 at 01:42:56PM -0700, bca...@lists.ewheeler.net wrote: > From: Eric Wheeler > > Add sysfs entries to support to hint for bypass/writeback by the ioprio > assigned to the bio. If the bio is unassigned, use current's io-context > ioprio for cache writeback or bypass (configured

[PATCH 07/19] bcache: introduce bcache sysfs entries for ioprio-based bypass/writeback hints

2017-06-30 Thread bcache
From: Eric Wheeler Add sysfs entries to support to hint for bypass/writeback by the ioprio assigned to the bio. If the bio is unassigned, use current's io-context ioprio for cache writeback or bypass (configured per-process with `ionice`). Having idle IOs bypass the cache can increase performan

[PATCH 07/19] bcache: introduce bcache sysfs entries for ioprio-based bypass/writeback hints

2017-06-30 Thread Eric Wheeler
Add sysfs entries to support to hint for bypass/writeback by the ioprio assigned to the bio. If the bio is unassigned, use current's io-context ioprio for cache writeback or bypass (configured per-process with `ionice`). Having idle IOs bypass the cache can increase performance elsewhere since yo

[PATCH 07/19] bcache: introduce bcache sysfs entries for ioprio-based bypass/writeback hints

2017-06-30 Thread Eric Wheeler
Add sysfs entries to support to hint for bypass/writeback by the ioprio assigned to the bio. If the bio is unassigned, use current's io-context ioprio for cache writeback or bypass (configured per-process with `ionice`). Having idle IOs bypass the cache can increase performance elsewhere since yo