openstack team mailing list archive

[stuart.mclaren@xxxxxx]

Hi Sam,

In case its useful for comparison I looked at Swift SSL performance in
general a while back:

https://region-a.geo-1.objects.hpcloudsvc.com/v1.0/AUTH_19cbcca3-a4b8-4b90-9332-c9bffd02285f/public_referenced/swift_perf6.pdf

I didn't see pound hurting performance as much as you did, but our configs
may have been different.

-Stuart

PS

There's currently some work being done to allow the
Glance client to disable SSL compression on a per connection basis:

https://blueprints.launchpad.net/python-glanceclient/+spec/ssl-connect-rework

If this gets merged it will cover the glanceclient -> glance data path but
not the glance -> swift part. (With a bit of luck that may get added later.)

On Mon, 8 Oct 2012, Sam Morrison wrote:

> OK we changed to use nginx as opposed to pound and got a huge increase in speed.
>
> With taking glance out of it and talking directly to swift an image took 1m38s to download with pound in front.
> With nginx this took just 5s not sure what is wrong with pound, we haven't changed any settings for pound or nginx.
>
> Sam
>
>
> On 08/10/2012, at 2:50 PM, Sam Morrison <sorrison@xxxxxxxxx> wrote:
>
> > Hi,
> >
> > We've recently enabled ssl on our swift-proxy and now glance is incredibly slow. I've read some stuff about disabling zlib compression etc.
> >
> > Has anyone got a good fix for this?
> >
> > We're using Ubuntu 12.04
> >
> > Cheers,
> > Sam
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~openstack
> More help   : https://help.launchpad.net/ListHelp