当直接内存达到最大限制时就会触发GC,如果回收失败则会引起OutOfMemoryError。 (3)直接内存在读和写的性能都优于堆内内存,但是内存申请速度却不如堆内内存。 解决方法:因此直接内存适用于需要大内存空间且频繁访问的场合,不适用于频繁申请释放内存的场合。在需要频繁申请的场景下不应该使用直接内存(DirectMemory),而...
使用zlib压缩与解压缩数据时,除了 CPU 之外,同时也会产生缓存(cache)与内存(memory)的负载。 测试矩阵运算 使用2 个matrixstressors 产生各种矩阵运算,进行 CPU 负载测试: # 以两个 matrix stressors 进行矩阵运算,产生 CPU 满载状况 stress-ng --matrix 2 --timeout 30s 1. 2. 内存测试 以8 个 vm stress...
stress-ng -c 2 --cpu-method all 产生2个worker调用socket相关函数产生压力 stress-ng --sock 2 产生2个worker读取tsc产生压力 stress-ng --tsc 2 除了能够产生不同类型的压力,strss-ng还可以将压力指定到特定的cpu上,比如下面的命令将压力指定到cpu 0,2,3,6: stress-ng --sock 4 --taskset 0,2-3...
stress-ng -c 2 --cpu-method all 产生2个worker从迭代使用30多种不同的压力算法,包括pi, crc16, fft等等 stress-ng --sock 2 产生2个worker调用socket相关函数产生压力 stress-ng --tsc 2 产生2个worker读取tsc产生压力 四、附stress简介 stress是Linux的一个压力测试工具,可以对CPU、Memory、IO、磁盘进行...
stress-ng --cpu `nproc` --pthread 1024 timeout 300 该命令会在N个CPU核的系统上,产生N个进程,每个进程1024个线程,模拟线程间竞争CPU的场景 其它常用样例: stress-ng --vm 8 --vm-bytes 80% -t 1h run 8 virtual memory stressors that combined use 80% of the available memory for 1 hour. Thu...
Stress Test CPU and Memory (VM) On a Linux / Unix With Stress-ng How to Impose High CPU Load and Stress Test on Linux Using ‘Stress-ng’ Tool 整理来源: Linux stress CPU的测试方法 Linux压力测试软件Stress安装及使用指南 Linux系统优化与调试之二:压力测试神器stress-ng ...
stress-ng--cpu`nproc`--pthread1024timeout300 该命令会在N个CPU核的系统上,产生N个进程,每个进程1024个线程,模拟线程间竞争CPU的场景 其它常用样例: stress-ng--vm8--vm-bytes80%-t1h run8virtual memory stressors that combined use80%ofthe available memoryfor1hour.Thus each stressor uses10%ofthe ...
stress-ng--cpu`nproc`--pthread1024timeout300 该命令会在N个CPU核的系统上,产生N个进程,每个进程1024个线程,模拟线程间竞争CPU的场景 其它常用样例: stress-ng--vm8--vm-bytes80%-t1h run8virtual memory stressors that combined use80%ofthe available memoryfor1hour.Thus each stressor uses10%ofthe ...
This is the stress-ng upstream project git repository. stress-ng will stress test a computer system in various selectable ways. It was designed to exercise various physical subsystems of a computer as well as the various operating system kernel interfac
This is the stress-ng upstream project git repository. stress-ng will stress test a computer system in various selectable ways. It was designed to exercise various physical subsystems of a computer as well as the various operating system kernel interfac