您可以使用任何合适的JSR223测试元素和类似以下的代码来执行此操作：

if (ctx.getThreadNum() == 1 && vars.getIteration() == 1) {
    ctx.getThreadGroup().getProperty("ultimatethreadgroupdata").getObjectValue().eachWithIndex { entry, index ->
        log.info('----------------------------------------------')
        log.info('Line number ' + (index + 1) + ' parameters:')
        log.info('Start threads count: ' + entry.get(0).value)
        log.info('Initial delay: ' + entry.get(1).value)
        log.info('Startup time: ' + entry.get(2).value)
        log.info('Hold load for: ' + entry.get(3).value)
        log.info('Shutdown time: ' + entry.get(4).value)
    }
}

演示：

请参阅Top 8 JMeter Java Classes You Should Be Using with Groovy，了解这些ctx和vars对象的意义。