On Mon, Jan 13 2014 at 9:30pm -0500, Jonathan Brassow <jbrassow@xxxxxxxxxx> wrote: > dm-log-userspace: Allow mark requests to piggyback on flush requests > > In the cluster evironment, cluster write has poor performance. > Because userspace_flush has to contact userspace program(cmirrord) > in clear/mark/flush request. But both mark and flush requests > require cmirrord to circle message to all the cluster nodes in each > flush call. This behave is realy slow. So the idea is merging > mark and flush request together to reduce the kernel-userspace-kernel > time. Allow a new directive, "integrated_flush" that can be used to > instruct the kernel log code to combine flush and mark requests when > directed by userspace. Additionlly, flush requests are performed > lazily when only clear requests exist. > > Signed-off-by: dongmao zhang <dmzhang@xxxxxxxx> > Signed-off-by: Jonathan Brassow <jbrassow@xxxxxxxxxx> Hey Jon, Thanks for following through with this. Should it be attributed to dongmao as the author? -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
