Re: [BUG] list implementation too slow.

Hi Oded & List

Oded Arbel wrote:
> 
> Hi list.
> 
> Lately we've been doing some very high capacity testing on Kannel , and
> found out some interesting stuff. mainly as queues (managed by lists)
> are filling up to over a few hundreds of messages, the boxes start
> thrashing.
> I think this is directly related to the List implementation - it's just
> too sssslllloooowwww. when we have more then a few hundreds of messages
> in the List, extracting one item can sometimes take anywhere from 2 to 4
> seconds (!!!).
> 
> Does any one have any information or experience regarding that ?

I send 500000 msg through Kannel and had a similar experience. Kannel
does
have a peak performance of 350 msg/s (with test_cimd2 sending true
service
request SMs and hello world server answering them; requests were http
ones
over our intranet). But long time performance lags, bearerbox grabbing
most
of cpu time. And yes, this happens when queues grow long.

(As an aside, Kannel *without* https does 1300 msg/s. And "long term"
means
about an hour.)

Aarno