Production ready WINDOWS AEM startup script

@echo off
	:: This script configures the start information for this server.
	::
	:: The following variables may be used to override the defaults.
	:: For one-time overrides the variable can be set as part of the command-line; e.g.,
	::
	:: SET CQ_PORT=1234 & ./start.bat
	::
	setlocal
	::* TCP port used for stop and status scripts
	set CQ_PORT=4502
	::* hostname of the interface that this server should listen to
	:: if not defined CQ_HOST set CQ_HOST=
	::* runmode(s)
	set CQ_RUNMODE=author
	::* name of the jarfile
	:: if not defined CQ_JARFILE set CQ_JARFILE=
	::* use jaas.config
	:: if not defined CQ_USE_JAAS set CQ_USE_JAAS=true
	::* config for jaas
	set CQ_JAAS_CONFIG=etc\jaas.config
	::* -------------------
	::* Default JVM options
	::* -------------------
	set CQ_JVM_OPTS=-server
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djava.awt.headless=true
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:NewRatio=1
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:+UseParallelGC
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:+UseParallelOldGC
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:ParallelGCThreads=4
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Xms8192m
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Xmx8192m
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:PermSize=256m
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:MaxPermSize=1024m
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djava.io.tmpdir=C:\JAVA_TEMP
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:+HeapDumpOnOutOfMemoryError
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:HeapDumpPath=C:\TEMP
	::* ----------
	::* CQ options
	::* ----------
	set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djackrabbit.maxQueuedEvents=1000000
	::* ------------------------------------------------------------------------------
	::* do not configure below this point
	::* ------------------------------------------------------------------------------
	chdir /D %~dp0
	cd ..
	del conf\controlport
	if not defined CQ_JARFILE for %%X in (app\*.jar) do set CQ_JARFILE=%%X
	for %%* in (.) do set CurrDirName=%%~n*
	cd ..
	set START_OPTS=start -c %CurrDirName% -i launchpad
	if defined CQ_PORT set START_OPTS=%START_OPTS% -p %CQ_PORT%
	if defined CQ_RUNMODE set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dsling.run.modes=%CQ_RUNMODE%
	if defined CQ_HOST set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dorg.apache.felix.http.host=%CQ_HOST%
	if defined CQ_HOST set START_OPTS=%START_OPTS% -a %CQ_HOST%
	if defined CQ_USE_JAAS set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djava.security.auth.login.config=%CQ_JAAS_CONFIG%
	tasklist > oldTaskList.txt
	start "CQ" cmd.exe /K java %CQ_JVM_OPTS% -jar %CurrDirName%\%CQ_JARFILE% %START_OPTS%
	tasklist > newTaskList.txt
	java -cp %~dp0 GetProcessID oldTaskList.txt newTaskList.txt java.exe > %CurrDirName%\conf\cq.pid
	del newTaskList.txt
	del oldTaskList.txt

My only comment is that I usually give it even more RAM if available and I add extra runmodes. E.g. set CQ_RUNMODE=author,prod

This is because custom runmodes make it very easy to target configurations to different environments using repository configuration of OSGI.

In case that ever goes down, here’s a copy:

@echo off
:: This script configures the start information for this server.
::
:: The following variables may be used to override the defaults.
:: For one-time overrides the variable can be set as part of the command-line; e.g.,
::
:: SET CQ_PORT=1234 & ./start.bat
::
setlocal

::* TCP port used for stop and status scripts
set CQ_PORT=4502

::* hostname of the interface that this server should listen to
:: if not defined CQ_HOST set CQ_HOST=

::* runmode(s)
set CQ_RUNMODE=author

::* name of the jarfile
:: if not defined CQ_JARFILE set CQ_JARFILE=

::* use jaas.config
:: if not defined CQ_USE_JAAS set CQ_USE_JAAS=true

::* config for jaas
set CQ_JAAS_CONFIG=etc\jaas.config

::* — — — — — — — — — -
::* Default JVM options
::* — — — — — — — — — -
set CQ_JVM_OPTS=-server
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djava.awt.headless=true
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:NewRatio=1
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:+UseParallelGC
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:+UseParallelOldGC
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:ParallelGCThreads=4
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Xms8192m
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Xmx8192m
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:PermSize=256m
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:MaxPermSize=1024m
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djava.io.tmpdir=C:\JAVA_TEMP
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:+HeapDumpOnOutOfMemoryError
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -XX:HeapDumpPath=C:\TEMP

::* — — — — —
::* CQ options
::* — — — — —
set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djackrabbit.maxQueuedEvents=1000000

::* — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
::* do not configure below this point
::* — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

chdir /D %~dp0
cd ..
del conf\controlport
if not defined CQ_JARFILE for %%X in (app\*.jar) do set CQ_JARFILE=%%X
for %%* in (.) do set CurrDirName=%%~n*
cd ..

set START_OPTS=start -c %CurrDirName% -i launchpad
if defined CQ_PORT set START_OPTS=%START_OPTS% -p %CQ_PORT%
if defined CQ_RUNMODE set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dsling.run.modes=%CQ_RUNMODE%
if defined CQ_HOST set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dorg.apache.felix.http.host=%CQ_HOST%
if defined CQ_HOST set START_OPTS=%START_OPTS% -a %CQ_HOST%
if defined CQ_USE_JAAS set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Djava.security.auth.login.config=%CQ_JAAS_CONFIG%

tasklist > oldTaskList.txt
start “CQ” cmd.exe /K java %CQ_JVM_OPTS% -jar %CurrDirName%\%CQ_JARFILE% %START_OPTS%
tasklist > newTaskList.txt
java -cp %~dp0 GetProcessID oldTaskList.txt newTaskList.txt java.exe > %CurrDirName%\conf\cq.pid
del newTaskList.txt
del oldTaskList.txt

Source: https://aemmastery.com/production-ready-windows-aem-startup-script-841353b9aa8