redliu312 · August 28, 2016 14:47 · Nov 30, 2015 · Nov 10, 2015 · Oct 31, 2011 · Oct 31, 2011
diff --git a/memusg b/memusg
@@ -22,30 +22,30 @@
 set -um
 
 # check input
-[ $# -gt 0 ] || { sed -n '2,/^#$/ s/^# //p' <"$0"; exit 1; }
+[[ $# -gt 0 ]] || { sed -n '2,/^#$/ s/^# //p' <"$0"; exit 1; }
 
 # TODO support more options: peak, footprint, sampling rate, etc.
 
-pgid=`ps -o pgid= $$`
+pgid=$(ps -o pgid= $$)
 # make sure we're in a separate process group
-if [ $pgid = $(ps -o pgid= $(ps -o ppid= $$)) ]; then
+if [[ "$pgid" == "$(ps -o pgid= $(ps -o ppid= $$))" ]]; then
     cmd=
     set -- "$0" "$@"
     for a; do cmd+="'${a//"'"/"'\\''"}' "; done
     exec bash -i -c "$cmd"
 fi
 
 # detect operating system and prepare measurement
-case `uname` in
+case $(uname) in
     Darwin|*BSD) sizes() { /bin/ps -o rss= -g $1; } ;;
     Linux) sizes() { /bin/ps -o rss= -$1; } ;;
-    *) echo "`uname`: unsupported operating system" >&2; exit 2 ;;
+    *) echo "$(uname): unsupported operating system" >&2; exit 2 ;;
 esac
 
 # monitor the memory usage in the background.
 (
 peak=0
-while sizes=`sizes $pgid`
+while sizes=$(sizes $pgid)
 do
     set -- $sizes
     sample=$((${@/#/+}))

diff --git a/memusg b/memusg
@@ -4,6 +4,21 @@
 #
 # Author: Jaeho Shin <[email protected]>
 # Created: 2010-08-16
+############################################################################
+# Copyright 2010 Jaeho Shin.                                               #
+#                                                                          #
+# Licensed under the Apache License, Version 2.0 (the "License");          #
+# you may not use this file except in compliance with the License.         #
+# You may obtain a copy of the License at                                  #
+#                                                                          #
+#     http://www.apache.org/licenses/LICENSE-2.0                           #
+#                                                                          #
+# Unless required by applicable law or agreed to in writing, software      #
+# distributed under the License is distributed on an "AS IS" BASIS,        #
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
+# See the License for the specific language governing permissions and      #
+# limitations under the License.                                           #
+############################################################################
 set -um
 
 # check input
@@ -43,4 +58,4 @@ monpid=$!
 
 
 # run the given command
-exec "$@"
+exec "$@"
diff --git a/memusg b/memusg
@@ -13,7 +13,7 @@ set -um
 
 pgid=`ps -o pgid= $$`
 # make sure we're in a separate process group
-if [ x$pgid = x$(ps -o pgid= $(ps -o ppid= $$)) ]; then
+if [ $pgid = $(ps -o pgid= $(ps -o ppid= $$)) ]; then
     cmd=
     set -- "$0" "$@"
     for a; do cmd+="'${a//"'"/"'\\''"}' "; done

diff --git a/memusg b/memusg
diff --git a/memusg b/memusg
@@ -13,7 +13,7 @@ set -um
 
 pgid=`ps -o pgid= $$`
 # make sure we're in a separate process group
-if [ x$pgid = x$(ps -o pgid= $(ps -o ppid= $$)) ]; then
+if [ $pgid = $(ps -o pgid= $(ps -o ppid= $$)) ]; then
     cmd=
     set -- "$0" "$@"
     for a; do cmd+="'${a//"'"/"'\\''"}' "; done

diff --git a/memusg b/memusg
@@ -11,6 +11,15 @@ set -um
 
 # TODO support more options: peak, footprint, sampling rate, etc.
 
+pgid=`ps -o pgid= $$`
+# make sure we're in a separate process group
+if [ x$pgid = x$(ps -o pgid= $(ps -o ppid= $$)) ]; then
+    cmd=
+    set -- "$0" "$@"
+    for a; do cmd+="'${a//"'"/"'\\''"}' "; done
+    exec bash -i -c "$cmd"
+fi
+
 # detect operating system and prepare measurement
 case `uname` in
     Darwin|*BSD) sizes() { /bin/ps -o rss= -g $1; } ;;
@@ -19,7 +28,6 @@ case `uname` in
 esac
 
 # monitor the memory usage in the background.
-pgid=`ps -o pgid= $$`
 (
 peak=0
 while sizes=`sizes $pgid`

diff --git a/memusg b/memusg
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# memusg -- Measure memory usage of processes
+# Usage: memusg COMMAND [ARGS]...
+#
+# Author: Jaeho Shin <[email protected]>
+# Created: 2010-08-16
+set -um
+
+# check input
+[ $# -gt 0 ] || { sed -n '2,/^#$/ s/^# //p' <"$0"; exit 1; }
+
+# TODO support more options: peak, footprint, sampling rate, etc.
+
+# detect operating system and prepare measurement
+case `uname` in
+    Darwin|*BSD) sizes() { /bin/ps -o rss= -g $1; } ;;
+    Linux) sizes() { /bin/ps -o rss= -$1; } ;;
+    *) echo "`uname`: unsupported operating system" >&2; exit 2 ;;
+esac
+
+# monitor the memory usage in the background.
+pgid=`ps -o pgid= $$`
+(
+peak=0
+while sizes=`sizes $pgid`
+do
+    set -- $sizes
+    sample=$((${@/#/+}))
+    let peak="sample > peak ? sample : peak"
+    sleep 0.1
+done
+echo "memusg: peak=$peak" >&2
+) &
+monpid=$!
+
+
+# run the given command
+exec "$@"
No results found