Error occurred during initialization of VM Could not reserve enough space for 1048576KB object heap

errorlevel=1

首先根据报错信息去启动文件内搜索，查看是否是jmeter.bat内部配置，查找set HEAP参数

 我的是jmeter5.4版本默认是1g，shell命令是如果没有定义HEAP再设置HSEP的值

if not defined HEAP (
    rem See the unix startup file for the rationale of the following parameters,
    rem including some tuning recommendations
    set HEAP=-Xms1g -Xmx1g -XX:MaxMetaspaceSize=256m
)

其他JMETER是直接set  HEAP值那么根据需要增大该值