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Toshihisa Tanaka tosihisa

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@tosihisa
tosihisa / ntpd_conf.diff
Last active Aug 29, 2015
Raspberry Pi で NTP Stratum-1 Server を作るための ntpd 設定.IPv6 の設定は外していることに注意(IPv6 はルータで弾いている)
View ntpd_conf.diff
--- /etc/ntp_orig.conf 2014-02-09 02:40:48.108324421 +0000
+++ /etc/ntp.conf 2014-03-01 04:32:53.926990869 +0000
@@ -4,24 +4,32 @@
# Enable this if you want statistics to be logged.
-#statsdir /var/log/ntpstats/
+statsdir /var/log/ntpstats/
-statistics loopstats peerstats clockstats
@tosihisa
tosihisa / loopstats_gnuplot.sh
Created May 3, 2014
ntpd の loopstats 内にある offset を読み込んで gnuplot でグラフにするシェルスクリプト.
View loopstats_gnuplot.sh
#!/bin/sh
# ntpd 'loopstats' to gnuplut
# loopstats_gnuplot.sh FILENAME RANGE TICS
TITLE=`basename $1`
gnuplot << EOF
set terminal png
set output "$1_$2_$3.png"
set yrange[-$2:$2]
set xrange [0:86400]
set grid ytics
@tosihisa
tosihisa / gcc_warn_query.awk
Created May 3, 2012
gcc の警告オプションを調べてみた。
View gcc_warn_query.awk
#!/usr/bin/gawk -f
#http://gcc.gnu.org/onlinedocs/gcc/Overall-Options.html
BEGIN {
gcc_cmd="gcc -Q --help=warnings,^joined,^undocumented";
w_lv[0] = "";
w_lv[1] = "-Wall";
w_lv[2] = "-Wall -Wextra";
for(i = 0;i < 3;i++){
cmdln = sprintf("%s %s",gcc_cmd,w_lv[i]);