Fix: log jemalloc presence at startup, not at shutdown

[fab-10]

Signed-off-by: Fabio Di Fabio fabio.difabio@consensys.net

PR description

Fixed Issue(s)

Documentation

• I thought about documentation and added the doc-change-required label to this PR if
  updates are required.

Changelog

• I thought about the changelog and included a changelog update if required.

[fab-10]

@ajsutton if you want to check again, since I had to move the log where it does not interfere with other options output

[ahamlat]

What do you think about including this in ConfigurationOverviewBuilder.java ?

[fab-10]

What do you think about including this in ConfigurationOverviewBuilder.java ?

Make sense, will do

[macfarla]

@fab-10 are you still planning on making changes to this PR?

[fab-10]

Converted back to draft since will continue to work on it later

[ahamlat]

@fab-10 Do you think you can add Jemalloc log to ConfigurationOverviewBuilder.java or I can do it if you have other priorities ?

[fab-10]

I can do it, and I also want to report the version

[fab-10]

@ahamlat now if jemalloc is used then its version is printed in the overview

sample output

####################################################################################################
#                                                                                                  #
# Besu version 23.1.3-dev-542fa80f                                                                 #
#                                                                                                  #
# Configuration:                                                                                   #
# Network: Mainnet                                                                                 #
# Network Id: 1                                                                                    #
# Data storage: Forest                                                                             #
# Sync mode: Fast                                                                                  #
# Engine APIs: ENGINE,ETH                                                                          #
# Engine port: 8551                                                                                #
# Engine JWT: build/install/besu/jwt.hex                                                           #
#                                                                                                  #
# Host:                                                                                            #
# Java: openjdk-java-17                                                                            #
# Maximum heap size: 3.89 GB                                                                       #
# OS: linux-x86_64                                                                                 #
# glibc: 2.35                                                                                      #
# jemalloc: 5.2.1-0-gea6b3e973b477b8061e0076bb257dbd7f3faa756                                      #
# Total memory: 15.54 GB                                                                           #
# CPU cores: 8                                                                                     #
#                                                                                                  #
####################################################################################################

[ahamlat]

Nice, what is the output when jemalloc is not installed ? What about other Operating systems like Windows ?

[fab-10]

Nice, what is the output when jemalloc is not installed ? What about other Operating systems like Windows ?

We only support jemalloc on Linux, and when it is not installed this is printed in the logs

logger.info("jemalloc library not found, memory usage may be reduced by installing it")

[ahamlat]

I meant, what is the output at startup when Jemalloc is not installed ? (Same output as above when Jemalloc is not installed )

[fab-10]

I meant, what is the output at startup when Jemalloc is not installed ? (Same output as above when Jemalloc is not installed )

On Linux, when jemalloc is not installed, then the configuration overview does not have the jemalloc line, and in the logs there is this line at info jemalloc library not found, memory usage may be reduced by installing it

On other OS there is nothing about jemalloc, since we only support it on Linux.