That makes sense, thank you for your explanation, Matteo. - Michael
On Tue, Dec 21, 2021 at 4:03 PM Matteo Merli <matteo.me...@gmail.com> wrote: > > > Did you consider determining the default limit by inspecting the JVM's > > runtime? > > For example, in the broker, we set `maxMessagePublishBufferSizeInMB` to 1/2 > > of direct memory, by default. > > > > I concede that this config is more complicated than a broker config since > > we're talking about a client application. However, it seems like > > applications > > with 1 GB memory would probably want a different setting than one with > > 32 GB memory, and a fractional value could make the client work better > > "out of the box." > > > > We cannot make everyone happy with a default value, so if this dynamic > > default is too complicated to implement, I'm good with 64 MB. :) > > The issue is that we don't know what are the application assumptions > with respect to the memory. Eg; even if it's given 32GB to the JVM, it > might want to use all of it. > > The other aspect is that after a point, increasing the memory size, > won't increase the throughput anymore, and it will become just a waste > of RAM.
