adding useful ability to scan for hosts, slight rename of ws

Benchmark.bash

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+sudo apt-get install sysbench mbw -y
+dd if=/dev/zero of=/tmp/output bs=8k count=1000k >& results.txt
+sed -i '1s/^/\n\nDisk Write-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ \n\n/' results.txt
+rm -f /tmp/output 
+echo -e "\n\nDisk Read-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ \n" >> results.txt
+sudo hdparm -Tt /dev/sda >> results.txt
+echo -e "\n\nRAM Access-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ \n" >> results.txt
+mbw -n 2 2000 >> results.txt
+echo -e "\n\nCPU Single Thread Performance-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_\n" >> results.txt
+sysbench --test=cpu --num-threads=1 --cpu-max-prime=50000 run >> results.txt
+echo -e "\n\nCPU Multi Thread Performance-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ \n" >> results.txt
+sysbench --test=cpu --num-threads=8 --cpu-max-prime=50000 run >> results.txt

README.md

@@ -6,4 +6,19 @@ ros-helper-scripts
    * (don't forget the "." or the variable setting will not take effect)
 * ws: run a command in all subdirectories of your catkin workspace src/ directory
    * Usage: ws COMMAND
-   * (I do things like ws git branch or ws git status to see the state of all my repositories at once)
+   * (I do things like ws git branch or ws git status to see the state of all my repositories at once) 
+* netSearch.py: search selected segments of the local network for ROS Master, present to user, and offer use of rosremote.sh
+   * Usage: netSearch.py 192.168.1.*
+   * Placing the * symbol will search that entire subnet address, from 0-255
+* rosBWMonitor.sh: get the bandwidth usage and rate of all rostopics on a ros master. 
+   * Usage:  ./rosBWMonitor.sh
+   * Note: Should be run on whatever system would receive the data, for example a laptop on wifi.
+   * To pipe to a CSV (for later analysis) use: ./rosBWMonitor.sh >> topics.csv
+* Benchmark.bash : automatically installs dependacies and runs a simple benchmark to quickly get data about a computer
+
+
+* Also of interest: 
+  * Alias the rosdep command to ease use: 
+  * alias rosdepquick="rosdep install --from-paths src --ignore-src --rosdistro=indigo -y"
+
+

netSearch.py

@@ -0,0 +1,30 @@
+#! /usr/bin/env python
+import socket
+import sys
+
+if len(sys.argv) > 1:
+    ip = sys.argv[1]
+    add = ip.split('.')
+    port = 11311
+
+    for n1 in range (0 if (add[0] == '*') else int(add[0]),256 if (add[0] == '*') else int(add[0])+1):
+        for n2 in range (0 if (add[1] == '*') else int(add[1]),256 if (add[1] == '*') else int(add[1])+1):
+            for n3 in range (0 if (add[2] == '*') else int(add[2]),256 if (add[2] == '*') else int(add[2])+1):
+                for n4 in range (0 if (add[3] == '*') else int(add[3]),256 if (add[3] == '*') else int(add[3])+1):
+                    ip = str(n1) + '.' + str(n2) + '.' + str(n3) + '.' + str(n4)
+
+                    try:
+                        s = socket.socket()
+                        s.settimeout(0.05)
+                        s.connect((ip,port))
+                        s.send("\r\n\r\n")
+                        result = s.recv(16) #See if we get any response at all
+                        s.close()
+                        print "ROS Master at: " + ip
+
+                    except Exception, e:
+                        pass
+else:
+    print "Usage: netSearch.py 192.168.1.*"
+    print "Placing the * symbol will search that entire subnet address, from 0-255"
+

rosBWMonitor.sh

@@ -0,0 +1,31 @@
+#! /bin/bash
+
+mapfile -t lines < <(rostopic list)
+now=$(date)
+host=$(hostname)
+ip=$(ifconfig | sed -En 's/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p')
+echo $now
+echo "Topic, Bandwidth, Rate, Published Locally?, Subscribed Locally?"
+for (( i=0; i<${#lines[@]}; i++ )); do 
+    echo -n ${lines[i]} ", "
+    read VAL1 <<< $(timeout 1s rostopic bw ${lines[i]} | awk '/average:/ { print $0}')
+    echo -n ${VAL1} ", "
+    read VAL1 <<< $(timeout 1s rostopic hz ${lines[i]} | awk '/rate:/ { print $0}')
+    echo -n ${VAL1} ", "
+    read VAL1 <<< $(rostopic info ${lines[i]})
+    read VAL1 <<< $(rostopic info ${lines[i]})
+    VAL1=${VAL1//'*'/-} # Bodge to prevent * from throwing everything
+    sub=${VAL1##*'Subscribers:'}
+    pub=${VAL1##*'Publishers:'}
+    pub=${pub%%'Subscribers:'*}
+    if [[ $pub = *$host* ]] || [[ $pub = *$ip* ]]; then
+        echo -n "yes, "
+    else
+        echo -n "no, "
+    fi
+    if [[ $sub = *$host* ]] || [[ $sub = *$ip* ]]; then
+        echo "yes"
+    else
+        echo "no"
+    fi
+done