> > Are we currently underestimating the size of AMQP messages? If so, > what exactly was underestimated?
If you sent a Core message with ./artemis producer --message-count=1 --protocol=AMQP The address size of that message will be 642 bytes (from the estimate) If you send a Core Message with ./artemis producer --message-count=1 --protocol=CORE The estimate from CORE is using 1121 I believe we need to raise the offset on the AMQP message, raising the minimal. By pegging I mean.. the broker's performance starts to crawl, using a lot of time on GC.. and it may eventually OME. It eventually starts to Page but at that point things are really bad already. There's another change I have beeen wanting to do, that is to keep the estimate static... and I want to do it as part of 2.54.0 as I'm not holding 2.53 for this. > > When you say "pegging" are you talking about CPU utilization? If so, > what is consuming all the CPU? Garbage collection? > > If folks potentially need to adjust their paging config we'll need to > guide them on how to do it in the docs. > > > Justin > > On Mon, Mar 16, 2026 at 2:13 PM Clebert Suconic > <[email protected]> wrote: > > > > As I was "playing" with my changes on Shell, I stumbled on an issue. > > > > > > As I sent millions of messages, Core Messages will trigger paging a lot > > sooner. > > While AMQP Messages will trigger it much later, but the broker starts > > pegging and decreases the performance quite a lot. > > > > > > I played with some adjusting on the estimates, and I will fix it on > > the next release (2.54.. not 2.53).. > > > > Users will have to readjust their estimates though... > > > > What do you think? > > > > -- > > Clebert Suconic > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > -- Clebert Suconic --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
