[openstack-dev] [Nova][Vmware]Bad Performance when creating a new VM
xiaoquqi at gmail.com
Thu Jan 9 00:42:27 UTC 2014
Thanks for your response.
I make another testing to upload my iso to my ESXi host directly, the speed
is much faster now, avg is more than 40 MB/s. By the way, 188.8.131.52 is my
I will keep you update if I have some new found. Thanks a lot.
On Thu, Jan 9, 2014 at 1:09 AM, Rick Jones <rick.jones2 at hp.com> wrote:
> On 01/07/2014 06:30 PM, Ray Sun wrote:
>> I tried to create a new VM using the driver VMwareVCDriver, but I found
>> it's very slow when I try to create a new VM, for example, 7GB Windows
>> Image spent 3 hours.
>> Then I tried to use curl to upload a iso to vcenter directly.
>> curl -H "Expect:" -v --insecure --upload-file
>> The average speed is 0.8 MB/s.
>> Finally, I tried to use vSpere web client to upload it, it's only 250
>> I am not sure if there any special configurations for web interface for
>> vcenter. Please help.
> I'm not fully versed in the plumbing, but while you are pushing via curl
> to 184.108.40.206 you might check the netstat statistics at the sending side,
> say once a minute, and see what the TCP retransmission rate happens to be.
> If 220.127.116.11 has to push the bits to somewhere else you should follow
> that trail back to the point of origin, checking statistics on each node as
> you go.
> You could, additionally, try running the likes of netperf (or iperf, but I
> have a natural inclination to suggest netperf...) between the same pairs of
> systems. If netperf gets significantly better performance then you
> (probably) have an issue at the application layer rather than in the
> Depending on how things go with those, it may be desirable to get a packet
> trace of the upload via the likes of tcpdump. It will be very much
> desirable to start the packet trace before the upload so you can capture
> the TCP connection establishment packets (aka the TCP SYNchronize segments)
> as those contain some important pieces of information about the
> capabilities of the connection.
> rick jones
> OpenStack-dev mailing list
> OpenStack-dev at lists.openstack.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the OpenStack-dev