At Wed, 24 Jun 2015 19:47:52 +0530, ankit bhardwaj wrote: > > [1 <text/plain; UTF-8 (quoted-printable)>] > I am using QEMU 2.0.0 and Sheepdog daemon version 0.7.5 on Ubuntu 14.04.
The version is too old. Could you try v0.9.2? 0.7.x doesn't have a change for parallelizing I/O with worker threads. It means single CPU will be very busy than others. Thanks, Hitoshi > > On Wed, Jun 24, 2015 at 6:01 PM, Hitoshi Mitake <[email protected]> > wrote: > > > At Tue, 23 Jun 2015 20:16:05 +0530, > > ankit bhardwaj wrote: > > > > > > [1 <multipart/related (7bit)>] > > > [1.1 <multipart/alternative (7bit)>] > > > [1.1.1 <text/plain; UTF-8 (quoted-printable)>] > > > 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. > > > > Thanks for your detailed report. Could you provide version of sheepdog and > > QEMU? > > > > Thanks, > > Hitoshi > > > > > > > > > > > $(DcJ(B> > > > 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 > > > [1.1.2 <text/html; UTF-8 (quoted-printable)>] > > > > > > [2 Sheepdog_Resource_usage.png <image/png (base64)>] > > > > > > > > > -- > Ankit Bhardwaj > [2 <text/html; UTF-8 (quoted-printable)>] > -- sheepdog mailing list [email protected] https://lists.wpkg.org/mailman/listinfo/sheepdog
