I am using "sheep -n /mnt/sheep/0 -c zookeeper:IP1:2181,IP2:2181,IP3:2181" to start sheep on each node. And in the question I was mostly talking about reading speed. Writing speed was quite less than the native disk writing.
On my machine I am able to run 10 VMs comfortably , within 40 seconds when I am using local disk. But when I try to boot these VM in 3 node- 3 replica sheepdog cluster, CPU becomes the bottleneck after booting 3 VM simultaneously. Here is the graph for booing 5 VM simultaneously in sheepdog cluster. I want to run more number of VMs. Is there anything, that can be done in terms of setup, number of node, Number of replicas etc ? On Tue, Jun 23, 2015 at 5:51 PM, Hitoshi Mitake <[email protected]> wrote: > At Tue, 23 Jun 2015 11:57:53 +0530, > ankit bhardwaj wrote: > > > > [1 <multipart/alternative (7bit)>] > > [1.1 <text/plain; UTF-8 (7bit)>] > > I am using 3 node cluster , with 3 copies of disk image. So, each node > have > > a full copy of disk image. > > Could you provide an option for your sheep processes? > > Thanks, > Hitoshi > > > > > On Tue, Jun 23, 2015 at 10:37 AM, Vasiliy Tolstov <[email protected]> > > wrote: > > > > > 2015-06-23 1:40 GMT+03:00 ankit bhardwaj <[email protected]>: > > > > I am new to Sheepdog. Though I have gained enough knowledge to > deploy and > > > > use sheepdog for qemu-kvm VMs. I tried to benchmark Sheepdog and > found > > > that: > > > > > > > > 1. Sheepdog's Maximum Read/Write Speed is around 70-80% compared to > local > > > > storage. That too when the condition are in favour of sheepdog. > Example: > > > > Full copy of data on same node and Reading or writing sequential Data > > > etc. > > > > > > > > 2. When using VM disk image to boot VM from Sheepdog storage, some > extra > > > > system activities increase the load on the CPU from 30-40%. > > > > > > > > Can you please tell me,: > > > > Why the speed is slow, even if all the data is on the same machine ? > > > > What activity in sheepdog is eating up my processor cycles ? > > > > > > > > > > > > Sorry for the loosely described experiments and results. > > > > > > > > > I think we need command line for running sheepdog and how you format > > > you cluster (erasure coded or replicas) ? > > > > > > -- > > > Vasiliy Tolstov, > > > e-mail: [email protected] > > > > > > > > > > > -- > > Ankit Bhardwaj > > [1.2 <text/html; UTF-8 (quoted-printable)>] > > > > [2 <text/plain; us-ascii (7bit)>] > > -- > > sheepdog mailing list > > [email protected] > > https://lists.wpkg.org/mailman/listinfo/sheepdog > -- Ankit Bhardwaj
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