Hi Waldek! On Wed, Mar 27, 2019 at 12:29 AM Waldek Kozaczuk <[email protected]> wrote:
> Last week I spent some time investigating OSv performance and comparing it > to Docker and Linux guests. > Nice! On Wed, Mar 27, 2019 at 12:29 AM Waldek Kozaczuk <[email protected]> wrote: > The test setup looked like this: > > *Host:* > > - MacBook Pro with Intel i7 4 cores CPU with hyperthreading (8 cpus > reported by lscpu) with 16GB of RAM with Ubuntu 18.10 on it > - firecracker 0.15.0 > - QEMU 2.12.0 > > > *Client machine:* > > - similar to the one above with wrk as a test client firing requests > using 10 threads and 100 open connections for 30 seconds in 3 series one by > one (please see this test script - > > https://github.com/wkozaczuk/unikernels-v-containers/blob/master/test-restapi-with-wrk.sh > ). > - wrk by default uses Keep-Alive for http connections so TCP handshake > is minimal > > The host and client machine were connected directly to 1 GBit ethernet > switch and host exposed guest IP using a bridged TAP nic (please see the > script used - > https://raw.githubusercontent.com/cloudius-systems/osv/master/scripts/setup-external-bridge.sh > ). > > You can find scripts to start applications on OSv and docker here - > https://github.com/wkozaczuk/unikernels-v-containers (run* scripts). > Please note --cpu-set parameter used in docker script to limit number of > CPUs. > > You can find detailed results under > https://github.com/wkozaczuk/unikernels-v-containers/tree/master/test_results/remote > . > Some questions about the evaluation setup and measurements: - Did you establish a baseline with bare metal configuration? - Did you measure CPU utilization during the throughput tests? This is important because you could be hitting CPU limits with QEMU and Firecracker because of software processing needed by virtualized networking. - Are the QEMU and Firecracker tests using virtio or vhost? - Is Docker also configured to use the bridge device? If not, QEMU and Firecracker also have some additional overheads from the bridging. - Is multiqueue enabled for QEMU and Firecracker? If not, this would limit the ability to leverage multiple vCPUs. - Is QEMU or Firecracker setting CPU affinity for the vCPU threads? If not, two or more vCPUs could be running on the same physical CPU, which obviously limits throughput. Regards, - Pekka -- You received this message because you are subscribed to the Google Groups "OSv Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
