Memory usage under load

[majek]

Some people suggest sockjs-node is not very good in terms of memory usage:

I did a few simple benchmarks and it went well. Under real load it seems to be performing well, but the memory usage is a bit high ( ~400 MB for 1000 connections)!

We should investigate what's happening.

[3rd-Eden]

WS has been struggling with the same issues.. So you might find some information / points to investigate at the related issue: websockets/ws#43

[nicokaiser]

(As noted in websockets/ws#43) This may be an issue of node.js not giving back memory to the OS early (only if it's really needed). So maybe this is not a leak, but "only" stupid GC.

Did you test 1,000 connections on a machine with less than 400 MB memory? Does it start to swap or crash?

[theyak]

How do you load test many connections?