我需要的
我想通过应用程序监控系统资源(即内存和CPU 使用情况),而不仅仅是通过进程。正如 Windows 任务管理器按“调用母进程”对资源进行分组一样,我也喜欢这样看。如今,像 firefox 和 vscode 这样的应用程序会产生许多子进程,我想快速完整地了解它们的使用情况。
解决方案可以是 GUI 或 TUI、bash 脚本或大行话。我真的不在乎。为了让它工作,我想我可以向它提供母进程的 pid 或可执行文件的名称作为过滤手段。
例子
我尝试过的
- 我尝试过
htop
,但它只向我显示一棵树,其中调用进程列出了自己的内存 - 而不是它调用的内存。 - 我尝试过
gnome-system-monitor
,但它是一样的。 - 我尝试了一些
ps
,free
但没有找到正确的参数/管道集来使它们执行我想要的操作。
让我困惑的是我无法用谷歌搜索解决方案。也许是有原因的?
有人有想法吗?我将非常感激!
答案1
下面的这个脚本需要很多额外的改进,但我认为它可以作为基础。
我开始写评论,但现在还没能完成。当我有更多空闲时间时,我将使用对我的答案的编辑来添加新评论并修复错误。
在我的环境中它运行良好。我将此脚本命名为 mytop 并将其放入 /usr/local/bin 中,这样我就可以在其上完成 bash 命令选项卡补全。您可以将 mytop 放入 ~/bin 目录(如果 ~/bin 不在您的 $PATH 中,则添加它),或计算机上的任何位置。当然,必须使用 chmod u+x mytop 设置执行位。
#!/bin/bash
# mytop -ver 1.0
# script name (default is: 'mytop')
s_name=$(basename $0)
# version
ver="1.0"
# set default time between mytop iterations
sec_delay=3
# set default mytop repetitions/iterations
mt_rep=1000000
# Help function explaining syntax, options, ...
Help()
{
# Display Help
echo
echo "Show Totals of %CPU and &MEM using 'top' command."
echo
echo "Syntax:"
echo " $s_name [-h|-V]"
echo " $s_name [[-d <S>][-n <N>] <APP_NAME>"]
echo
echo "Options:"
echo " -h Print this Help."
echo " -d S Delay/wait S seconds between iterations (default: 3 seconds)."
echo " -n N Run/iterate 'mytop' N times (default: 3 times)."
echo " -V Print version."
echo
echo "Examples:"
echo " mytop -V"
echo " mytop -d1 -n5 chromium"
echo
echo 'Use CTRL+C for exit!'
echo
}
# Handling options from command line arguments
while getopts ":hn:d:V" option; do
case $option in
h) # display Help
Help
exit;;
V) # print version
echo "$s_name $ver"
exit;;
n) # set how many times 'mytop' will repeat/iterate
mt_rep=$OPTARG;;
d) # set delays in seconds
sec_delay=$OPTARG;;
\?)
echo "$s_name: inapropriate: '$1'."
echo "Usage:"
echo " $s_name [-h|-V|-d<S> -n<N> <APP_NAME>]"
exit;;
esac
done
# If no arguments given just display Help function and exit
if [[ $# -eq 0 ]]; then
Help
exit
else
# If last argument starts with '-' exit from app
if [[ ${@:$#} =~ -+.* ]]; then
echo ${s_name}: error: Last argument must be the name of the application that you want to track. >&2
exit 1
else
app_name=${@:$#}
fi
fi
# Set 'dashes' literally
#t_dsh='-----------------------------------------------------------'
# or set them with printf command
t_dsh=$(printf '%0.s-' {1..59})
# Not in use
#if [[ -z $mt_rep ]] 2>/dev/null; then
# r_endless=1
# mt_rep=1000
#else
# r_endless=0
#fi
i=0
while [[ $i -lt $mt_rep ]]; do
#if [[ "$r_endless" == "0" ]]; then ((i++)); fi
((i++))
# Handle pids of app you want to track by removing 'mytop' pids
# get s_name (mytop) pids
pgrep $s_name > /tmp/mt_pids
# get app_name pids -all of them --not desired behaviour
pgrep -f $app_name > /tmp/app_name_pids
# get app_name without mytop pids --desired behaviour
for e in $(cat /tmp/mt_pids); do sed -i "/$e/d" /tmp/app_name_pids; done
if [[ ! -s "/tmp/app_name_pids" ]]; then echo "1000000" > /tmp/app_name_pids; fi
# top -b -n1 -p; -b for output without ANSI formating; -n1 for just one iteration of 'top'; -p for feeding processes from 'pgrep' command
# Use LC_NUMERIC if your 'top' command outputs 'commas' instead 'dots' - with LC_NUMERIC you will get 'dots' during this script
LC_NUMERIC=en_US.UTF-8 top -b -n1 -p $(cat /tmp/app_name_pids | xargs | tr ' ' ,) > /tmp/pstemp
wc_l=$(wc -l < /tmp/pstemp)
cpu_use=$(tail -n +8 /tmp/pstemp | tr -s ' ' | sed 's/^ *//' | cut -d' ' -f9 | xargs | tr ' ' + | bc)
if [[ "$cpu_use" == "0" ]]; then
cpu_use="0.0"
else
if (( $(bc <<< "$cpu_use < 1") )); then cpu_use="0$cpu_use"; fi
fi
mem_use=$(tail -n +8 /tmp/pstemp | tr -s ' ' | sed 's/^ *//' | cut -d' ' -f10 | xargs | tr ' ' + | bc)
if [[ "$mem_use" == "0" ]]; then
mem_use="0.0"
else
if (( $(bc <<< "$mem_use < 1") )); then mem_use="0$mem_use"; fi
fi
echo -en "\033[2J\033[0;0f"
# Use 'echo ...' above or 'tput ...' below (chose the one that works for you)
#tput cup 0 0 && tput ed
# Align Totals under %CPU and %MEM columns
if (( $(bc <<< "$cpu_use < 1") )); then
sed "${wc_l}a \\\n\nTotal (%CPU/%MEM): $(printf " %29s")$cpu_use $mem_use\n${t_dsh}" /tmp/pstemp
elif (( $(bc <<< "$cpu_use < 100") )); then
sed "${wc_l}a \\\n\nTotal (%CPU/%MEM): $(printf " %28s")$cpu_use $mem_use\n${t_dsh}" /tmp/pstemp
else
sed "${wc_l}a \\\n\nTotal (%CPU/%MEM): $(printf " %27s")$cpu_use $mem_use\n${t_dsh}" /tmp/pstemp
fi
if [[ $i -lt $mt_rep ]]; then sleep $sec_delay; fi
done