[openstack-dev] Python overhead for rootwrap
jaypipes at gmail.com
Fri Jul 26 15:34:08 UTC 2013
On 07/25/2013 04:21 PM, Joe Gordon wrote:
> Hi All,
> We have recently hit some performance issues with nova-network. It
> turns out the root cause of this was we do roughly 20 rootwrapped shell
> commands, many inside of global locks.
> It turns out starting python itself, has a fairly significant overhead
> when compared to the run time of many of the binary commands we execute.
> For example:
> $ time python -c "print 'test'"
> $ time ip a
> While we have removed the extra overhead of using entry points, we are
> now hitting the overhead of just shelling out to python.
Just ask a question of you personally, off list... I was curious about
the above statement about entry points. Could you elaborate a bit there?
I thought OpenStack had moved *to* using entry points with stevedore?
Did this change recently?
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