perf4j打印性能日志

maven:

<dependency>
            <groupId>org.perf4j</groupId>
            <artifactId>perf4j</artifactId>
            <version>0.9.16</version>
        </dependency>

xml配置:

<!-- watchDog -->
    <appender name="cachePerfAnalysis" class="ch.qos.logback.core.FileAppender">
        <file>${LOG_HOME}/${APP_NAME}_cache-pref-analysis.log</file>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%m%n</pattern>
        </encoder>
    </appender>
    <appender name="cacheCoalescingStatistics" class="org.perf4j.logback.AsyncCoalescingStatisticsAppender">
        <!--
             TimeSlice配置多少时间间隔去做一次汇总写入文件中
             默认值是 30000 ms
        -->
        <param name="timeSlice" value="10000"/>
        <appender-ref ref="cachePerfAnalysis"/>
    </appender>

使用：

StopWatch stopWatch = new Slf4JStopWatch();
stopWatch.lap("tag");