Re: [Openstack] Swift performance for very small objects

2012-05-22 Thread andi abes
Remember that when an object is written to swift, it's not written just to the object server, the container and account servers are updated as well... the container for object listings (and timestmaps) and the account for overall statistics. Also, the proxy ensures a quorum for the newly written o

Re: [Openstack] Swift performance for very small objects

2012-05-21 Thread Rick Jones
On 05/19/2012 06:34 PM, Paulo Ricardo Motta Gomes wrote: Hello, I'm doing some experiments in a Swift cluster testbed of 9 nodes/devices and 3 zones (3 nodes on each zone). In one of my tests, I noticed that PUTs of very small objects are extremely inefficient. - 5000 PUTs of objects with an a

[Openstack] Swift performance for very small objects

2012-05-19 Thread Paulo Ricardo Motta Gomes
Hello, I'm doing some experiments in a Swift cluster testbed of 9 nodes/devices and 3 zones (3 nodes on each zone). In one of my tests, I noticed that PUTs of very small objects are extremely inefficient. - 5000 PUTs of objects with an average size of 40K - total of 195MB - took 67s (avg time pe