test

vscode-server-linux-x64-web/out/vs/base/node/cpuUsage.sh

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+#!/bin/bash
+
+function get_total_cpu_time() {
+  # Read the first line of /proc/stat and remove the cpu prefix
+  CPU=(`sed -n 's/^cpu\s//p' /proc/stat`)
+
+  # Sum all of the values in CPU to get total time
+  for VALUE in "${CPU[@]}"; do
+    let $1=$1+$VALUE
+  done
+}
+
+TOTAL_TIME_BEFORE=0
+get_total_cpu_time TOTAL_TIME_BEFORE
+
+# Loop over the arguments, which are a list of PIDs
+# The 13th and 14th words in /proc/<PID>/stat are the user and system time
+# the process has used, so sum these to get total process run time
+declare -a PROCESS_BEFORE_TIMES
+ITER=0
+for PID in "$@"; do
+  if [ -f /proc/$PID/stat ]
+  then
+    PROCESS_STATS=`cat /proc/$PID/stat`
+    PROCESS_STAT_ARRAY=($PROCESS_STATS)
+
+    let PROCESS_TIME_BEFORE="${PROCESS_STAT_ARRAY[13]}+${PROCESS_STAT_ARRAY[14]}"
+  else
+    let PROCESS_TIME_BEFORE=0
+  fi
+
+  PROCESS_BEFORE_TIMES[$ITER]=$PROCESS_TIME_BEFORE
+  ((++ITER))
+done
+
+# Wait for a second
+sleep 1
+
+TOTAL_TIME_AFTER=0
+get_total_cpu_time TOTAL_TIME_AFTER
+
+# Check the user and system time sum of each process again and compute the change
+# in process time used over total system time
+ITER=0
+for PID in "$@"; do
+  if [ -f /proc/$PID/stat ]
+  then
+    PROCESS_STATS=`cat /proc/$PID/stat`
+    PROCESS_STAT_ARRAY=($PROCESS_STATS)
+
+    let PROCESS_TIME_AFTER="${PROCESS_STAT_ARRAY[13]}+${PROCESS_STAT_ARRAY[14]}"
+  else
+    let PROCESS_TIME_AFTER=${PROCESS_BEFORE_TIMES[$ITER]}
+  fi
+
+  PROCESS_TIME_BEFORE=${PROCESS_BEFORE_TIMES[$ITER]}
+  let PROCESS_DELTA=$PROCESS_TIME_AFTER-$PROCESS_TIME_BEFORE
+  let TOTAL_DELTA=$TOTAL_TIME_AFTER-$TOTAL_TIME_BEFORE
+  CPU_USAGE=`echo "$((100*$PROCESS_DELTA/$TOTAL_DELTA))"`
+
+  # Parent script reads from stdout, so echo result to be read
+  echo $CPU_USAGE
+  ((++ITER))
+done

vscode-server-linux-x64-web/out/vs/base/node/ps.sh

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+#!/bin/sh
+PAGESIZE=`getconf PAGESIZE`;
+TOTAL_MEMORY=`cat /proc/meminfo | head -n 1 | awk '{print $2}'`;
+
+# Mimic the output of ps -ax -o pid=,ppid=,pcpu=,pmem=,command=
+# Read all numeric subdirectories in /proc
+for pid in `cd /proc && ls -d [0-9]*`
+	do {
+		if [ -e /proc/$pid/stat ]
+		then
+			echo $pid;
+
+			# ppid is the word at index 4 in the stat file for the process
+			awk '{print $4}' /proc/$pid/stat;
+
+			# pcpu - calculation will be done later, this is a placeholder value
+			echo "0.0"
+
+			# pmem - ratio of the process's working set size to total memory.
+			# use the page size to convert to bytes, total memory is in KB
+			# multiplied by 100 to get percentage, extra 10 to be able to move
+			# the decimal over by one place
+			RESIDENT_SET_SIZE=`awk '{print $24}' /proc/$pid/stat`;
+			PERCENT_MEMORY=$(((1000 * $PAGESIZE * $RESIDENT_SET_SIZE) / ($TOTAL_MEMORY * 1024)));
+			if [ $PERCENT_MEMORY -lt 10 ]
+			then
+				# replace the last character with 0. the last character
+				echo $PERCENT_MEMORY | sed 's/.$/0.&/'; #pmem
+			else
+				# insert . before the last character
+				echo $PERCENT_MEMORY | sed 's/.$/.&/';
+			fi
+
+			# cmdline
+			xargs -0 < /proc/$pid/cmdline;
+		fi
+	} | tr "\n" "\t"; # Replace newlines with tab so that all info for a process is shown on one line
+	echo; # But add new lines between processes
+done