Why overload manager can't work if envoy build with out Tcmalloc and using jemalloc

[wufanqqfsc]

Description:

If config overload manager with envoy.resource_monitors.fixed_heap as resource monitor and with tcmalloc= disable
This overload manager seems not work. So if we are using jemalloc , this Envoy overload manager seems not work ?
So why ? and how to fix this problem if we still need use jemalloc and we also want the overload manager work.

resource_monitors:

• name: "envoy.resource_monitors.fixed_heap"

[KBaichoo]

hey @wufanqqfsc

Are you building envoy with jemalloc? This would be very neat to have available upstream.

Regarding why the heap resource monitor does work, you'll need to implement the functions here:
https://github.com/envoyproxy/envoy/blob/main/source/common/memory/stats.cc

As it uses these to calculate the memory used.

[wufanqqfsc]

yes , @KBaichoo thanks for your comments here.
At least in our case we need it since we were using bytehound (just support jemalloc) for memory profiling debug.
Let's keep in track, we can trying to fix it, but may be also need some support from community.