Re: [openstack-dev] design question : green thread model

2015-01-29 Thread Belmiro Moreira
Hi, nova-conductor starts multiple processes as well. Belmiro On Wednesday, January 28, 2015, Johannes Erdfelt johan...@erdfelt.com wrote: On Wed, Jan 28, 2015, murali reddy muralimmre...@gmail.com javascript:; wrote: On hosts with multi-core processors, it does not seem optimal to run a

[openstack-dev] design question : green thread model

2015-01-28 Thread murali reddy
Hello, I am trying to understand how a nova component can be run parallely on a host. From the developer reference documentation it seems to indicate that all the openstack services use green thread model of threading. Is it the only model of parallelism for all the components or multiple

Re: [openstack-dev] design question : green thread model

2015-01-28 Thread murali reddy
Thanks JE. On hosts with multi-core processors, it does not seem optimal to run a single service instance with just green thread. I understand that on controller node, we can run one or more nova services but still it does not seem to utilize multi-core processors. Is it not a nova scaling

Re: [openstack-dev] design question : green thread model

2015-01-28 Thread Johannes Erdfelt
On Wed, Jan 28, 2015, murali reddy muralimmre...@gmail.com wrote: I am trying to understand how a nova component can be run parallely on a host. From the developer reference documentation it seems to indicate that all the openstack services use green thread model of threading. Is it the only

Re: [openstack-dev] design question : green thread model

2015-01-28 Thread Johannes Erdfelt
On Wed, Jan 28, 2015, murali reddy muralimmre...@gmail.com wrote: On hosts with multi-core processors, it does not seem optimal to run a single service instance with just green thread. I understand that on controller node, we can run one or more nova services but still it does not seem to

Re: [openstack-dev] design question : green thread model

2015-01-28 Thread Kevin L. Mitchell
On Wed, 2015-01-28 at 22:48 +0530, murali reddy wrote: On hosts with multi-core processors, it does not seem optimal to run a single service instance with just green thread. I understand that on controller node, we can run one or more nova services but still it does not seem to utilize