Cleaned bench folder

bench/logs/.gitignore

-# Ignore everything in this directory
-*
-# Except this file
-!.gitignore

bench/mem

-#!/bin/sh
-
-if [ $# -lt 1 ]; then
-  echo "usage: $0 <program>"
-fi
-
-PROG=$1
-
-if [ ! -x "$PROG" ]; then
-  echo $PROG not found or not executable.
-  exit 1
-fi
-
-$* &
-PID=$!
-
-while `kill -0 $PID 2>/dev/null`; do
-  ps -eo size,pid,user,pcpu,command --sort -size | awk '{ line=1 ; hr=$1/1024 ; printf("%13.2f Mb ",hr); } { for ( x=4 ; x<=NF ; x++ ) { printf("%s ",$x) } print "" }' | grep -v grep | grep -v $0 | grep $PROG
-done