[Freeswitch-users] Anyone got experience with how limit scales with db back end?

[Avi Marcus]

Is there any reason it's being stored on disk rather than ram? A waste of
i/o of there's not..

-Avi Marcus


On Tue, Nov 29, 2011 at 5:22 AM, Dave Horton <daveh at beachdognet.com> wrote:

> I am using limit with db (sqlite) backend to limit all calls into my
> server.  I have 72 inbound channels on gateways sending to my freeswitch,
> which is running on a single processor dual core 3GHz server, with the
> sqlite call limits database on the local disk, and at times I am seeing a
> delay of up to 3 seconds between the arrival of an invite and FS sending a
> 180 Ringing from the ring ready application.  Other delays in signaling I
> also see intermittently.  The only real processing going on before the
> ring_ready application is executed is the limit application.  I see from
> the code there is a global mutex that looks like will result in all limit
> checks being single threaded through the code, and I am wondering if I am
> experience slight intermittent bottlenecks at peak call times.  I realize
> the hash backend is faster and I may switch to that (decision pre-dated my
> arrival), but I am wondering if anyone out there has any good data about
> how many cps the limit application with the db backend can scale to.
>  Obviously its dependent on hardware, but I'd still like to get any real
> world data (or suggestions) that are out there.
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