[rabbitmq-discuss] RabbitMQ / Erlang not running on all cores?

Matt Pietrek mpietrek at skytap.com
Tue Oct 22 22:31:35 BST 2013


Thanks Zhibo. We actually have hundreds of queues. Two of them are
processing several hundred messages/second. The remaining queues are
processing 1 or 2 messages second.




On Tue, Oct 22, 2013 at 2:03 PM, Zhibo Wei <zweicmu at gmail.com> wrote:

> As I remembered, a single queue is bounded by one core.
> Do you only have one queue? You can split your traffic into different
> queues and try it out.
>
>
> On Tue, Oct 22, 2013 at 1:54 PM, Michael Klishin <mklishin at gopivotal.com>wrote:
>
>> On 22 Oct 2013, at 23:12, Matt Pietrek <mpietrek at skytap.com> wrote:
>>
>> > Following up on this, it looks like erlang is seeing all four cores:
>> >
>> > Erlang R15B01 (erts-5.9.1) [source] [64-bit] [smp:4:4]
>> [async-threads:0] [kernel-poll:false]
>> >
>> > I assume this is what the [smp:4:4] refers to.
>>
>> What is your workload like? Can it be that you have a single massively
>> loaded
>> queue?
>>
>> MK
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>
>
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