定期监控单个进程并记录到日志文件中

定期监控单个进程并记录到日志文件中

基于问题,我想以一秒的频率将特定进程的性能记录到csv(逗号分隔值)日志文件中。

就像是:

timestamp(unix),cpu_activity(%),mem_usage(B),network_activity(B)
1355407327,24.6,7451518,345
1355407328,27.6,7451535,12
1355407329,31.6,7451789,467
...

答案1

我试图获取 rx_bytes 和 tx_bytes 但没有运气,其他东西正在工作..所以你可以使用下面的脚本进行相同的操作

#!/bin/bash

# /sys/class/net/eth0/statistics/rx_bytes
# /sys/class/net/eth0/statistics/tx_bytes

Process="$1"

[[ -z $2 ]] && InterVal=1 || InterVal=$2

show_help() {
cat <<_EOF
Usage :
        $0  <ProcessName>  <Interval (Default 1s)>
_EOF
}

Show_Process_Stats() {
pgrep "${Process}" >/dev/null 2>&1 || { echo "Error: Process($1) it not Running.."; exit 1;};
while :
do
    # timestamp(unix),cpu_activity(%),mem_usage(B),network_activity(B)
    timestamp=$(date +%s)
    read cpu_activty mem_usage < <( ps --no-headers -o %cpu,rssize  -C "${Process}" )   
    echo "${timestamp}","${cpu_activty}","${mem_usage}"
    sleep $InterVal
done
}


Main() {
case $1 in
        ""|-h|--help)
                      show_help
                      ;;
                     *)
                      Show_Process_Stats
                      ;;
esac                      
}


Main $*

答案2

rx 和 tx 应该如何计算?我尝试了以下操作,请检查并告诉我们您想要完成什么。

#!/bin/bash

# /sys/class/net/eth0/statistics/rx_bytes
# /sys/class/net/eth0/statistics/tx_bytes

Process="$1"

[[ -z $2 ]] && InterVal=1 || InterVal=$2

show_help() {
cat <<_EOF
Usage :
                $0  <ProcessName>  <Interval (Default 1s)>
_EOF
}

Show_Process_Stats() {
pgrep "${Process}" >/dev/null 2>&1 || { echo "Error: Process($1) it not Running.."; exit 1;};
old_rx=0
old_tx=0
echo "timestamp,cpu_activty,mem_usage,rx_bytes,tx_bytes"
while :
do
        # timestamp(unix),cpu_activity(%),mem_usage(B),network_activity(B)
        timestamp=$(date +%s)
        raw_rx_bytes=$(< /sys/class/net/eth0/statistics/rx_bytes )
        raw_tx_bytes=$(< /sys/class/net/eth0/statistics/tx_bytes )
        rx_bytes=$(( $raw_rx_bytes - $old_rx ))
        tx_bytes=$(( $raw_tx_bytes - $old_tx ))
        read cpu_activty mem_usage < <( ps --no-headers -o %cpu,rssize  -C "${Process}" )
        echo "${timestamp}","${cpu_activty}","${mem_usage}","${rx_bytes}","${tx_bytes}"
        old_rx=${raw_rx_bytes}
        old_tx=${raw_tx_bytes}
        sleep $InterVal
done
}


Main() {
case $1 in
                ""|-h|--help)
                                          show_help
                                          ;;
                                         *)
                                          Show_Process_Stats
                                          ;;
esac
}


Main $*

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