# cat check.sh #!/bin/bash # 获取CPU使用率 cpu_usage=$(top -bn1 | grep "Cpu(s)" | awk '{print $2 + $4}') echo "CPU 使用率: $cpu_usage%" # 获取内存使用率 mem_total=$(free -m | awk 'NR==2{print $2}') mem_used=$(free -m | awk 'NR==2{print $3}') mem_usa...
到目前为止,我们已经通过了一些最常用的 ps 命令来查看 Linux 系统上的内存和 CPU 使用情况下正在运行...
swappiness参数越低,表示Linux系统尽量少用swap分区,多用物理内存;swappiness参数值越高,表示使内核更多地去使用swap空间。 根据业务需要,修改swappiness参数。 打开内核参数配置文件sysctl.conf。 vi /etc/sysctl.conf 根据业务需要,修改swappiness参数值。 如在sysctl.conf文件中,修改vm.swappiness ...
# @Usage # $ ./show-busy-java-threads.sh # # @author Jerry Lee readonly PROG=`basename$0` readonly-a COMMAND_LINE=("$0""$@") usage(){ cat<<EOF Usage: ${PROG}[OPTION]... Find out the highest cpu consumed threads of java, and print the stack of these threads. Example: ${PR...
LinuxviewCPUandmemoryusage(Linux查看CPU和内存使用情况)Intheprocessofsystemmaintenance,itispossibletochecktheCPUusageatanytime,andanalyzethesystemstatusaccordingtothecorrespondinginformation.InCentOS,youcanviewtheCPUusagebyusingthetopcommand.Afterrunningthetopcommand,theCPUusagestatusisdisplayedinfullscreen,andindialo...
[ $? -ne 0 ] && usage 1 eval set -- "${ARGS}" while true; do case "$1" in -c|--count) count="$2" shift 2 ;; -p|--pid) pid="$2" shift 2 ;; -h|--help) usage ;; --) shift break ;; esac done count=${count:-5} ...
usage() { cat <<EOF Usage: ${PROG} [OPTION]... Find out the highest cpu consumed threads of java, and print the stack of these threads. Example: ${PROG} -c 10 Options: -p, --pid find out the highest cpu consumed threads from the specifed java process, ...
Linux CPU Usage Basics CPU measurement is an imprecise science, especially at low CPU usage. Basically it is a measurement of the work done divided by a time interval, then converted to a percentage. Several pages on the web describe how to do this calculation. ...
通过GPU Memory Usage参数查看每个进程的GPU的显存。 实时监控 nvidia-smi -l 1 这里1可以替换为其他数字,代表每x秒刷新一次。 Reference TOP命令参数详解---10分钟学会top用法 - 新盟教育的文章 - 知乎 __EOF__ https://www.cnblogs.com/tungsten106/p/linux_check_resources.html...
stress 是一个 Linux 系统压力测试工具,这里我们用作异常进程模拟平均负载升高的场景。 stress --cpu 1 --timeout 600 # 拟一个 CPU 使用率 100% 的场景 stress -i 1 --timeout 600 #模拟 I/O 压力,即不停地执行 sync stress -c 8 --timeout 600 #模拟的是 8 个进程 ...