From: Michal Sojka <sojkam1@fel.cvut.cz>
Date: Thu, 27 Aug 2009 13:13:27 +0000 (+0200)
Subject: HTML report + many modifications
X-Git-Tag: fix-allnoconfig~376
X-Git-Url: http://rtime.felk.cvut.cz/gitweb/can-benchmark.git/commitdiff_plain/d48a4f69b198ff8b3bd026ec63a5ec0905c97c08

HTML report + many modifications
---

diff --git a/prepare b/prepare
index d0aebd4..3d241c9 100755
--- a/prepare
+++ b/prepare
@@ -3,7 +3,7 @@
 set -e
 cd `dirname $0`
 
-cvs -d :pserver:anonymous@ocera.cvs.sourceforge.net:/cvsroot/ocera checkout -D 2009-06-11 -d ocera-can ocera/components/comm/can
+cvs -d :pserver:anonymous@ocera.cvs.sourceforge.net:/cvsroot/ocera checkout -D 2009-08-26 -d ocera-can ocera/components/comm/can
 
 svn checkout -r 1009 svn://svn.berlios.de/socketcan/trunk socketcan
 
diff --git a/tests/Makefile b/tests/Makefile
index 7094dba..b333eb0 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -2,7 +2,11 @@ T=$(filter-out _lib.sh,$(wildcard *.sh))
 
 .PHONY: $(T)
 
-all: $(T)
+all: $(T) html
 
 $(T):%:
-	./$@ --pdf-only
+	./$@ -X
+
+.PHONY: html
+html:
+	./genhtml.py results
diff --git a/tests/_lib.sh b/tests/_lib.sh
index 281ddf9..1661814 100644
--- a/tests/_lib.sh
+++ b/tests/_lib.sh
@@ -2,7 +2,7 @@
 while [ $# -gt 0 ]; do
     case "$1" in
 	-p) OPT_PLOT_ONLY=1; shift;;
-	--pdf-only) OPT_PDF_ONLY=1; shift;;
+	-X|--no-x11-plot) OPT_NO_X11=1; shift;;
     esac
 done
 
@@ -12,14 +12,19 @@ set -e
 PATH=$PWD/../_compiled/bin/:$PATH
 
 RTPRIO=60
+COUNT=10000
 
 boost_irq_prio() {
     local PRIO=${1:-50}
     CAN_IRQ=`sed -ne '/can/ s/:.*//p' /proc/interrupts`
     if [ -n "$CAN_IRQ" ]; then
 	IRQ_PID=`pidof IRQ-${CAN_IRQ/ /}` || true
-	[ -z "$IRQ_PID" ] || schedtool -F -p $PRIO $IRQ_PID 
+	if [ -n "$IRQ_PID" ]; then
+	    schedtool -F -p $PRIO $IRQ_PID
+	    return 0
+	fi
     fi
+    return 1
 }
 
 rmmod_can() {
@@ -70,33 +75,65 @@ prepare_socketcan_virtual() {
 
 run_tests() {
     tests=${TESTS:-socketcan_hw lincan_hw}
-    for i in $tests; do
-	cpufreq-set -f 2400MHz
-	boost_irq_prio 50
-	prepare_$i
+    for tst in $tests; do
+	boost_irq_prio 50 || true
+	prepare_$tst
 	t
     done
 }
 
 plot() {
     for i in "${!PLOT_CMD[@]}"; do
-	if [ -z "$OPT_PDF_ONLY" ]; then
-	    echo "set terminal x11 enhanced; ${PLOT_CMD[$i]}" | gnuplot -persist
+	cmd="${PLOT_CMD[$i]}";
+	cmd=$(echo "$cmd" | sed -e "/set title/ s/[\"']\(.*\)[\"']/'\1 ($(uname -r), CPU\\\\@${clk}Mhz)'/")
+	if [ -z "$OPT_NO_X11" ]; then
+	    echo "set terminal x11 enhanced; ${cmd}" | gnuplot -persist
 	fi
 	I=${i/0/}
 	echo "set terminal postscript color eps enhanced;
-	      ${PLOT_CMD[$i]}" | gnuplot | epstopdf --filter > `basename $0 .sh`$I.pdf
+	      ${cmd}" | gnuplot | epstopdf --filter > `basename $0 .sh`$I.pdf
+	mkdir -p thumb
+	convert -geometry 1000x100 -gamma 0.3 `basename $0 .sh`$I.pdf thumb/`basename $0 .sh`$I.png
+	convert -density 200 -gamma 0.7 -geometry 1000x500 `basename $0 .sh`$I.pdf `basename $0 .sh`$I.png
     done
 }
 
-go() {
-    d=results/`basename $0 .sh`/`uname -r`
-    set -x
+create_dirs_and_links() {
+    local test=$1
+    local kver=$2
+    local clck=$3
+
+    local  d=results/by-test/$test/$kver/$clck
     mkdir -p $d
-    cd $d
-    
-    [ -n "$OPT_PLOT_ONLY" ] || run_tests
-    plot
+    mkdir -p results/by-test/$test/$clck # 1
+    mkdir -p results/by-kern/$kver/$clck # 2
+    mkdir -p results/by-kern/$kver/$test # 3
+    mkdir -p results/by-clck/$clck/$kver # 4
+    mkdir -p results/by-clck/$clck/$test # 5
+    ln -sfT ../../../${d#results/} results/by-test/$test/$clck/$kver # 1
+    ln -sfT ../../../${d#results/} results/by-kern/$kver/$clck/$test # 2
+    ln -sfT ../../../${d#results/} results/by-kern/$kver/$test/$clck # 3
+    ln -sfT ../../../${d#results/} results/by-clck/$clck/$kver/$test # 4
+    ln -sfT ../../../${d#results/} results/by-clck/$clck/$test/$kver # 5
+    echo $d
+}
+
+go() {
+    mhz=${MHZ:-2400 300}
+    for clk in $mhz; do
+	dir=$(create_dirs_and_links `basename $0 .sh` `uname -r` $clk)
+	set -x
+	pushd $dir
+
+	if [ ! -n "$OPT_PLOT_ONLY" ]; then
+    	    cpufreq-set -f ${clk}MHz
+	    run_tests
+    	    cpufreq-set -f 2400MHz
+	fi
+	plot
+	popd
+	set +x
+    done
 
 }
 
diff --git a/tests/ethflood.sh b/tests/ethflood.sh
index c25d447..54911eb 100755
--- a/tests/ethflood.sh
+++ b/tests/ethflood.sh
@@ -3,24 +3,30 @@
 . _lib.sh
 
 t() {
-    ssh root@${SSH_CONNECTION%% *} 'ping -f "${SSH_CONNECTION%% *}"' &
-    PID_PING=$!
-    boost_irq_prio
-    PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 2 -c 10000
-    kill $PID_S
-    kill $PID_PING
+    for i in norm boost; do
+	ssh root@${SSH_CONNECTION%% *} 'ping -f "${SSH_CONNECTION%% *}"' &
+	PID_PING=$!
+	echo 0 1 > $DRIVER-$i-1000.dat
+	if [ $i != "boost" ] || boost_irq_prio 90; then
+	    PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
+	    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-$i -t 1 -d $CAN0 -w 2 -c $COUNT
+	    kill $PID_S
+	fi
+	kill $PID_PING
+    done
 }
 
 
 
 PLOT_CMD='
-set title "Round-trip time with ethenet load - ping -f (`uname -r`)"
+set title "Round-trip time with ethernet load - ping -f"
 set logscale y
 set grid
 set xlabel "Time [{/Symbol m}s]"
 set ylabel "Latency profile [messages]"
-plot [0:] "socketcan-1000.dat" with lp title "Socketcan",\
-          "lincan-1000.dat" with lp title "Lincan"
+plot [0:] "socketcan-norm-1000.dat" with lp lt 1 title "Socketcan",\
+          "lincan-norm-1000.dat" with lp lt 2 title "Lincan",\
+          "socketcan-boost-1000.dat" with lp lt 1 title "Socketcan boosted IRQ prio",\
+          "lincan-boost-1000.dat" with lp lt 2 title "Lincan boosted IRQ prio"
 '
 
diff --git a/tests/ethflood64k.sh b/tests/ethflood64k.sh
index aa32581..f83ccaa 100755
--- a/tests/ethflood64k.sh
+++ b/tests/ethflood64k.sh
@@ -3,23 +3,30 @@
 . _lib.sh
 
 t() {
-    ssh root@${SSH_CONNECTION%% *} 'ping -fs 64000 ${SSH_CONNECTION%% *}' &
-    PID_PING=$!
-    PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 2 -c 10000
-    kill $PID_S
-    kill $PID_PING
+    for i in norm boost; do
+	ssh root@${SSH_CONNECTION%% *} 'ping -fs 64000 ${SSH_CONNECTION%% *}' &
+	PID_PING=$!
+	echo 0 1 > $DRIVER-$i-1000.dat
+	if [ $i != "boost" ] || boost_irq_prio 90; then
+	    PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
+	    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-$i -t 1 -d $CAN0 -w 2 -c $COUNT
+	    kill $PID_S
+	fi
+	kill $PID_PING
+    done
 }
 
 
 
 PLOT_CMD='
-set title "Round-trip time with ethenet load - ping -fs 64000 (`uname -r`)"
+set title "Round-trip time with ethernet load - ping -fs 64000"
 set logscale y
 set grid
 set xlabel "Time [{/Symbol m}s]"
 set ylabel "Latency profile [messages]"
-plot [0:] "socketcan-1000.dat" with lp title "Socketcan",\
-          "lincan-1000.dat" with lp title "Lincan"
+plot [0:] "socketcan-norm-1000.dat" with lp lt 1 title "Socketcan",\
+          "lincan-norm-1000.dat" with lp lt 2 title "Lincan",\
+          "socketcan-boost-1000.dat" with lp lt 1 title "Socketcan boosted IRQ prio",\
+          "lincan-boost-1000.dat" with lp lt 2 title "Lincan boosted IRQ prio"
 '
 
diff --git a/tests/ethload.sh b/tests/ethload.sh
index 5b31c54..8aecd34 100755
--- a/tests/ethload.sh
+++ b/tests/ethload.sh
@@ -6,10 +6,12 @@ t() {
     for i in norm boost; do
 	ssh root@${SSH_CONNECTION%% *} 'find -L /usr/src/linux -type f -exec cat "{}" ";"' > /dev/null &
 	PID_LOAD=$!
-	[ $i == "boost" ] && boost_irq_prio 90
-	PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-	vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-$i -t 1 -d $CAN0 -w 0 -c 10000
-	kill $PID_S
+	echo 0 1 > $DRIVER-$i-1000.dat
+	if [ $i != "boost" ] || boost_irq_prio 90; then
+	    PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
+	    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-$i -t 1 -d $CAN0 -w 0 -c $COUNT
+	    kill $PID_S
+	fi
 	kill $PID_LOAD
     done
 }
@@ -17,7 +19,7 @@ t() {
 
 
 PLOT_CMD='
-set title "Round-trip time with receive ethenet load (`uname -r`)"
+set title "Round-trip time with receive ethernet load"
 set logscale y
 set grid
 set xlabel "Time [{/Symbol m}s]"
diff --git a/tests/ethload300MHz.sh b/tests/ethload300MHz.sh
deleted file mode 100755
index c7ee55d..0000000
--- a/tests/ethload300MHz.sh
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/bash
-
-. _lib.sh
-
-t() {
-    for i in norm boost; do
-	ssh root@${SSH_CONNECTION%% *} 'find -L /usr/src/linux -type f -exec cat "{}" ";"' > /dev/null &
-	PID_LOAD=$!
-	[ $i == "boost" ] && boost_irq_prio 90
-	cpufreq-set -f 300MHz
-	PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-	vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-$i -t 1 -d $CAN0 -w 0 -c 10000
-	cpufreq-set -f 2400MHz
-	kill $PID_S
-	kill $PID_LOAD
-    done
-}
-
-
-
-PLOT_CMD='
-set title "Round-trip time with receive ethenet load (`uname -r`, CPU\\@300 MHz)"
-set logscale y
-set grid
-set xlabel "Time [{/Symbol m}s]"
-set ylabel "Latency profile [messages]"
-plot [0:] "socketcan-norm-1000.dat" with lp lt 1 title "Socketcan",\
-          "lincan-norm-1000.dat" with lp lt 2 title "Lincan",\
-          "socketcan-boost-1000.dat" with lp lt 1 title "Socketcan boosted IRQ prio",\
-          "lincan-boost-1000.dat" with lp lt 2 title "Lincan boosted IRQ prio"
-'
diff --git a/tests/ethloadsend.sh b/tests/ethloadsend.sh
index a720202..8a9fc16 100755
--- a/tests/ethloadsend.sh
+++ b/tests/ethloadsend.sh
@@ -3,18 +3,18 @@
 . _lib.sh
 
 t() {
-    ( find -L /usr/src/linux -type f -exec cat '{}' ';'|ssh root@${SSH_CONNECTION%% *} 'cat > /dev/null' ) &
+    find -L /usr/src/linux -type f -exec cat '{}' ';'|ssh root@${SSH_CONNECTION%% *} 'cat > /dev/null' &
     PID_LOAD=$!
     PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-    vca_canping -m 1 -R FF:$RTPRIO FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 2 -c 10000
+    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 0 -c $COUNT
     kill $PID_S
-    kill $PID_LOAD
+    kill %%  # Kill the whole pipe above
 }
 
 
 
 PLOT_CMD='
-set title "Round-trip time with receive ethenet load (`uname -r`)"
+set title "Round-trip time with send ethernet load"
 set logscale y
 set grid
 set xlabel "Time [{/Symbol m}s]"
diff --git a/tests/genhtml.py b/tests/genhtml.py
new file mode 100755
index 0000000..8fd6da2
--- /dev/null
+++ b/tests/genhtml.py
@@ -0,0 +1,117 @@
+#!/usr/bin/env python
+
+import os;
+import dircache;
+import sys;
+
+os.chdir(sys.argv[1])
+
+class Axis:
+    def __init__(self, atype):
+        self.type = atype
+        self.values = dircache.listdir('by-%s'%atype)
+
+    def __str__(self):
+        if self.type == "kern": return "kernel"
+        elif self.type == "clck": return "CPU clock"
+        elif self.type == "test": return "test"
+        else: raise Exception, "Unknown type"
+
+    def __iter__(self):
+        return iter(self.values)
+
+    def __getitem__(self, key):
+        return self.values[key]
+
+    def getLabel(self, v):
+        if self.type == "clck": return v+" MHz"
+        elif self.type == "test": return "<a href='%s.sh.html'>%s</a>"%(v, v)
+        else: return v
+
+
+    def labels(self):
+        for v in self.values:
+            yield self.getLabel(v)
+        
+kernels = Axis('kern')
+clocks = Axis('clck')
+tests = Axis('test')
+
+class PageSet:
+    def __init__(self, values, x, y):
+        self.values = values
+        self.x = x
+        self.y = y
+
+    def getPages(self):
+        for v in self.values:
+            yield Page(self.values.type, str(self.values), v, self.x, self.y)
+
+class Page:
+    def __init__(self, prefix, name, value, xvals, yvals):
+        self.prefix = prefix
+        self.name = name
+        self.value = value
+        self.xvals = xvals
+        self.yvals = yvals
+                 
+    def generate(self, pagesets):
+        html = open("%s-%s.html"%(self.prefix, self.value), "w")
+        print >> html, """<html>
+<head>
+<title>CAN driver benchmark for %s %s</title>
+<style>
+img { border: 0; }
+table { border-collapse: collapse; }
+td { border: 1px solid lightgray; padding: 4px;}
+</style>
+</head>
+<body>
+<h1>CAN driver benchmark for %s %s</h1>"""  % (self.name, self.value, self.name, self.value)
+        for ps in pagesets:
+            print >>html, "View by %s: " % str(ps.values)
+            for v in ps.values:
+                print >>html, "<a href='%s-%s.html'>%s</a> | "%(ps.values.type, v, v)
+            print >>html, "<br>"
+        print >>html, "<table><thead><tr><td> </td>"
+        for x in self.xvals.labels():
+            print >>html, "<td>%s</td>" % x
+        print >>html, "</tr></thead>"
+        for y in self.yvals:
+            print >>html, "<tr><td>%s</td>" % self.yvals.getLabel(y)
+
+            for x in self.xvals:
+                print >>html, "<td>"
+                d="by-%s/%s/%s/%s/" % (self.prefix, self.value, y, x)
+                dthumb = d+"thumb"
+                try:
+                    for img in dircache.listdir(dthumb):
+                        print >>html, "<a href='%s/%s'><img src='%s/thumb/%s'></a>" % (d, img, d, img)
+                except OSError:
+                    print "error"
+                    print >>html, "</td>"
+                    print >>html, "</tr>"
+                    print >> html, """
+</table>
+</body>
+"""
+
+
+pagesets = [ PageSet(kernels, clocks, tests),
+             PageSet(tests, clocks, kernels),
+             PageSet(clocks, kernels, tests)]
+
+for ps in pagesets:
+    for p in ps.getPages():
+        p.generate(pagesets)
+
+try:
+    os.remove("index.html")
+except OSError: pass
+
+os.symlink("%s-%s.html"%(kernels.type, kernels[0]), "index.html")
+
+os.system("source-highlight -d --output-dir=. ../*.sh")
+    
+
+
diff --git a/tests/rtt-300MHz.sh b/tests/rtt-300MHz.sh
deleted file mode 100755
index e6f0913..0000000
--- a/tests/rtt-300MHz.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/bash
-
-. _lib.sh
-
-t() {
-    PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-    cpufreq-set -f 300MHz
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 2 -c 10000
-    cpufreq-set -f 2400Mhz
-    kill $PID_S
-}
-
-
-
-PLOT_CMD='
-set title "Round-trip time (`uname -r`, CPU\\@300 MHz)"
-set logscale y
-set grid
-set xlabel "Time [{/Symbol m}s]"
-set ylabel "Latency profile [messages]"
-plot [0:] "socketcan-1000.dat" with lp title "Socketcan",\
-          "lincan-1000.dat" with lp title "Lincan"
-'
-
diff --git a/tests/rtt-virtual-300MHz.sh b/tests/rtt-virtual-300MHz.sh
deleted file mode 100755
index 2bac3f6..0000000
--- a/tests/rtt-virtual-300MHz.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/bash
-
-. _lib.sh
-
-t() {
-    PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN0`
-    cpufreq-set -f 300MHz
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 5 -c 10000
-    cpufreq-set -f 2400MHz
-    kill $PID_S
-}
-
-TESTS="lincan_virtual socketcan_virtual"
-
-PLOT_CMD='
-set title "Round-trip time - virtual CAN (`uname -r`, CPU\\@300 MHz)"
-set logscale y
-set grid
-set xlabel "Time [{/Symbol m}s]"
-set ylabel "Latency profile [messages]"
-plot [0:] "socketcan-virtual-1000.dat" with lp title "Socketcan",\
-          "lincan-virtual-1000.dat" with lp title "Lincan"
-'
-
diff --git a/tests/rtt-virtual.sh b/tests/rtt-virtual.sh
index 918cac7..cf8cca4 100755
--- a/tests/rtt-virtual.sh
+++ b/tests/rtt-virtual.sh
@@ -4,14 +4,14 @@
 
 t() {
     PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN0`
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 0 -c 10000
+    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER -t 1 -d $CAN0 -w 0 -c $COUNT
     kill $PID_S
 }
 
 TESTS="lincan_virtual socketcan_virtual"
 
 PLOT_CMD='
-set title "Round-trip time - virtual CAN (`uname -r`)"
+set title "Round-trip time - virtual CAN"
 set logscale y
 set grid
 set xlabel "Time [{/Symbol m}s]"
diff --git a/tests/rtt-w.sh b/tests/rtt-w.sh
index 7fed8b5..a91308b 100755
--- a/tests/rtt-w.sh
+++ b/tests/rtt-w.sh
@@ -4,16 +4,16 @@
 
 t() {
     PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-0 -t 1 -d $CAN0 -w 0 -n 10 -c 10000
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-1 -t 1 -d $CAN0 -w 1 -n 10 -c 10000
-    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-2 -t 1 -d $CAN0 -w 2 -n 10 -c 10000
+    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-0 -t 1 -d $CAN0 -w 0 -n 10 -c $COUNT
+    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-1 -t 1 -d $CAN0 -w 1 -n 10 -c $COUNT
+    vca_canping -m 1 -R FF:$RTPRIO -v -g $DRIVER-2 -t 1 -d $CAN0 -w 2 -n 10 -c $COUNT
     kill $PID_S
 }
 
 
 
 PLOT_CMD='
-set title "Round-trip time depending on delay between sends (`uname -r`)"
+set title "Round-trip time depending on delay between sends"
 set logscale y
 set grid
 set xlabel "Time [{/Symbol m}s]"
diff --git a/tests/rtt.sh b/tests/rtt.sh
index cf0a346..757ff45 100755
--- a/tests/rtt.sh
+++ b/tests/rtt.sh
@@ -4,14 +4,14 @@
 
 t() {
     PID_S=`vca_canping -s 1 -b -R FF:$RTPRIO -d $CAN1`
-    vca_canping -m 1 -R FF:$RTPRIO -v -e $DRIVER-times -g $DRIVER -t 1 -d $CAN0 -w 0 -n 10 -c 10000
+    vca_canping -m 1 -R FF:$RTPRIO -v -e $DRIVER-times -g $DRIVER -t 1 -d $CAN0 -w 0 -n 10 -c $COUNT
     kill $PID_S
 }
 
 
 
 PLOT_CMD='
-set title "Round-trip time (`uname -r`)"
+set title "Round-trip time"
 set logscale y
 set grid
 set xlabel "Time [{/Symbol m}s]"
@@ -21,8 +21,8 @@ plot [0:] "socketcan-1000.dat" with lp title "Socketcan",\
 '
 
 PLOT_CMD[1]='
-set title "Round-trip time history (`uname -r`)"
-set logscale y
+set title "Round-trip time history"
+set logscale xy
 set grid
 set xlabel "Ping number"
 set ylabel "Round-trip time [{/Symbol m}s]"