On Tue, 2008-01-22 at 10:49 +0100, Jens Axboe wrote: > Hi, > > Today io contexts are per-process and define the (surprise) io context > of that process. In some situations it would be handy if several > processes share an IO context. With syslets it's especially crucial that > the threads working on behalf of the parent process are seen as the same > IO context. That goes from both a fairness and performance point of > view, since IO schedulers like AS and CFQ base decisions on what the > IO context state is. This patchset adds support for processes sharing a > single io context and also adds a CLONE_IO flag to denote sharing of > IO context.
Are you planning on extending this to a hierarchical CFQ for cgroups, or just giving the IO context to a cgroup? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/