Hi Matt, You will probably be interested in On 16/10/2014 11:00, Matt W. Benjamin wrote: > Hi Folks, > > Per yesterday's Ceph performance call, we've pushed 2 wip branches for review and feedback to https://github.com/linuxbox2/linuxbox-ceph.git . > > 1. xio-v084-inline reorganizes ceph::buffer as a namespace, and (nearly) all of > buffer::hash, buffer::ptr and buffer::list as inline > > 2. xio-v084-inline-flat restores some raw encapsulation lost in the prior change, > then refactors buffer::raw to remove virtual methods > > We've made some effort to measure the impact of the changes, but don't have > reliable data yet. (It's possible that our initial impression of improvement from the inlining change was not accurate, but more likely we need better workload tests.) > > In addition, we've been working on an experiment to refactor buffer::ptr and buffer::raw to use boost::intrusive::list, to unify the interfaces of the two types to permit interning buffer::raw directly on the containing list when there is no sharing, and a slab allocator for both types. We plan to push a wip branch with these changes to when they've stabilized a bit more and/or we have real perf numbers. > > Thanks, > > Matt > -- Loïc Dachary, Artisan Logiciel Libre
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