Optionally load jemalloc

[amsmota]

Description

As an Developer/Devops/Tester, I want to enable/disable the use of jemalloc when starting Besu so that I can easily test performance with/without jemalloc and be able to start without jemalloc if there is a memory issue on startup.

Acceptance Criteria

• Besu will load jemalloc optionally based on a env var

Versions

• All Linux based versions

Implementation

I was able to implement and test this feature by reusing the BESU_USING_JEMALLOC env var, with changes in the initial besu start script and a few lines in ConfigurationOverviewBuilder.

If set, BESU_USING_JEMALLOC=true will load jemalloc, if set to anything else it won't. If BESU_USING_JEMALLOC is not set at all it'll load it too (that is the existing behavior).

If enough people think this is useful I am ready to create a PR.

[macfarla]

@amsmota I think it would be great if you could do a PR for this

[amsmota]

I will. Thanks... 👍

@amsmota I think it would be great if you could do a PR for this

[amsmota]

Hi @macfarla, I opened the PR already, see above.

Thanks. 👍