代码
import org.junit.test; import org.slf4j.logger; import org.slf4j.loggerfactory; import oshi.systeminfo; import oshi.hardware.centralprocessor; import oshi.hardware.centralprocessor.ticktype; import oshi.hardware.globalmemory; import oshi.hardware.hardwareabstractionlayer; import oshi.util.formatutil; import oshi.util.util; import java.util.arrays; /** * os information test */ public class oshitest { private static logger logger = loggerfactory.getlogger(oshitest.class); @test public void test() { systeminfo si = new systeminfo(); hardwareabstractionlayer hal = si.gethardware(); logger.info("checking memory..."); printmemory(hal.getmemory()); logger.info("checking cpu..."); printcpu(hal.getprocessor()); } private static void printmemory(globalmemory memory) { logger.info("memory avail:{} mb" , memory.getavailable() / 1024 / 1024 );//memory avail:6863 mb logger.info("memory total:{} mb" , memory.gettotal() / 1024 / 1024 );//memory total:16384 mb } private static void printcpu(centralprocessor processor) { logger.info(string.format("cpu load: %.1f%% (os mxbean)%n", processor.getsystemcpuload() * 100));//cpu load: 24.9% (os mxbean) logger.info("cpu load averages : {}", processor.getsystemloadaverage());//cpu load averages : 1.5234375 logger.info("uptime: " formatutil.formatelapsedsecs(processor.getsystemuptime())); logger.info("context switches/interrupts: " processor.getcontextswitches() " / " processor.getinterrupts()); long[] prevticks = processor.getsystemcpuloadticks(); logger.info("cpu, iowait, and irq ticks @ 0 sec:" arrays.tostring(prevticks)); //wait a second... util.sleep(1000); long[] ticks = processor.getsystemcpuloadticks(); logger.info("cpu, iowait, and irq ticks @ 1 sec:" arrays.tostring(ticks)); long user = ticks[ticktype.user.getindex()] - prevticks[ticktype.user.getindex()]; long nice = ticks[ticktype.nice.getindex()] - prevticks[ticktype.nice.getindex()]; long sys = ticks[ticktype.system.getindex()] - prevticks[ticktype.system.getindex()]; long idle = ticks[ticktype.idle.getindex()] - prevticks[ticktype.idle.getindex()]; long iowait = ticks[ticktype.iowait.getindex()] - prevticks[ticktype.iowait.getindex()]; long irq = ticks[ticktype.irq.getindex()] - prevticks[ticktype.irq.getindex()]; long softirq = ticks[ticktype.softirq.getindex()] - prevticks[ticktype.softirq.getindex()]; long steal = ticks[ticktype.steal.getindex()] - prevticks[ticktype.steal.getindex()]; long totalcpu = user nice sys idle iowait irq softirq steal; logger.info(string.format( "user: %.1f%% nice: %.1f%% system: %.1f%% idle: %.1f%% iowait: %.1f%% irq: %.1f%% softirq: %.1f%% steal: %.1f%%%n", 100d * user / totalcpu, 100d * nice / totalcpu, 100d * sys / totalcpu, 100d * idle / totalcpu, 100d * iowait / totalcpu, 100d * irq / totalcpu, 100d * softirq / totalcpu, 100d * steal / totalcpu)); logger.info(string.format("cpu load: %.1f%% (counting ticks)%n", processor.getsystemcpuloadbetweenticks() * 100)); double[] loadaverage = processor.getsystemloadaverage(3); logger.info("cpu load averages:" (loadaverage[0] < 0 ? " n/a" : string.format(" %.2f", loadaverage[0])) (loadaverage[1] < 0 ? " n/a" : string.format(" %.2f", loadaverage[1])) (loadaverage[2] < 0 ? " n/a" : string.format(" %.2f", loadaverage[2]))); // per core cpu stringbuilder proccpu = new stringbuilder("cpu load per processor:"); double[] load = processor.getprocessorcpuloadbetweenticks(); for (double avg : load) { proccpu.append(string.format(" %.1f%%", avg * 100)); } logger.info(proccpu.tostring()); } }
结果
16:03:08.573 [main] info org.apache.dolphinscheduler.common.os.oshitest - checking memory...
16:03:10.592 [main] info org.apache.dolphinscheduler.common.os.oshitest - memory avail:155 mb
16:03:10.594 [main] info org.apache.dolphinscheduler.common.os.oshitest - memory total:4095 mb
16:03:10.594 [main] info org.apache.dolphinscheduler.common.os.oshitest - checking cpu...
16:03:10.772 [main] debug oshi.hardware.common.abstractcentralprocessor - oracle mxbean detected.
16:03:12.319 [main] debug oshi.hardware.platform.windows.windowscentralprocessor - initialized processor
16:03:12.322 [main] info org.apache.dolphinscheduler.common.os.oshitest - cpu load: 41.0% (os mxbean)
16:03:12.322 [main] info org.apache.dolphinscheduler.common.os.oshitest - cpu load averages : -1.0
16:03:12.326 [main] info org.apache.dolphinscheduler.common.os.oshitest - uptime: 1 days, 20:39:54
16:03:12.328 [main] info org.apache.dolphinscheduler.common.os.oshitest - context switches/interrupts: 1714488866 / 570600239
16:03:12.330 [main] info org.apache.dolphinscheduler.common.os.oshitest - cpu, iowait, and irq ticks @ 0 sec:[37287359, 0, 19608289, 234918099, 0, 520263, 600050, 0]
16:03:13.332 [main] info org.apache.dolphinscheduler.common.os.oshitest - cpu, iowait, and irq ticks @ 1 sec:[37287421, 0, 19608313, 234920002, 0, 520263, 600057, 0]
16:03:13.333 [main] info org.apache.dolphinscheduler.common.os.oshitest - user: 3.1% nice: 0.0% system: 1.2% idle: 95.3% iowait: 0.0% irq: 0.0% softirq: 0.4% steal: 0.0%
16:03:13.333 [main] info org.apache.dolphinscheduler.common.os.oshitest - cpu load: 19.8% (counting ticks)
16:03:13.333 [main] info org.apache.dolphinscheduler.common.os.oshitest - cpu load averages: n/a n/a n/a
16:03:13.337 [main] info org.apache.dolphinscheduler.common.os.oshitest - cpu load per processor: 21.3% 18.3%
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