apinstein

#!/bin/sh
# This should result in very different completion times for the 2 runs.
# This script is useful to be sure that ionice works on your kernel since it's possible to have the
# ionice command yet using it has no effect
# you can check your scheduler with something like 
# cat /sys/block/sda1/queue/scheduler

# NOTE: I wrote this to help me figure out if ionice was working on my system. It doesn't seem to be, since the
# output of this script indicates that the priorities, while adjusted, don't get reflected in the real world timings.
# I don't know if my script is wrong or if my server is mis-configured.

apinstein

# debug performance stuff
SetEnvIf Request_URI ^/panel panel-request
LogFormat "%h %l %u %t %T \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"" debug_performance
CustomLog /Users/alanpinstein/dev/sandbox/virtualtour/log/debug_performance_log debug_performance env=panel-request

apinstein

#!/bin/bash
# RESULTS, feel free to repro yourself
#
# noLock                    FAIL
# accessShare               FAIL
# rowShare                  FAIL
# rowExclusive              FAIL
# shareUpdateExclusive      SUCCESS
# share                     FAIL+DEADLOCKS
# shareRowExclusive         SUCCESS

apinstein

$ export USE_ZEND_ALLOC=0; valgrind --tool=memcheck --num-callers=30 --leak-check=full --show-reachable=yes [rets php script]

apinstein

 (echo 'this is stdout' && this_is_stderr)
 (echo 'this is stdout' && this_is_stderr) 1> /dev/null
 (echo 'this is stdout' && this_is_stderr) 2> /dev/null
 (echo 'this is stdout' && this_is_stderr) > /dev/null 2>&1

apinstein

#!/bin/sh
echo ">> STDOUT and STDERR"
(echo 'this is stdout' && this_is_stderr)
echo ">> STDERR only"
(echo 'this is stdout' && this_is_stderr) 1> /dev/null
echo ">> STDOUT only"
(echo 'this is stdout' && this_is_stderr) 2> /dev/null
echo ">> NOTHING"
(echo 'this is stdout' && this_is_stderr) > /dev/null 2>&1

apinstein

<?php

manifest(array(
"pear", "apinstein.pearfarm.org/mp", "1.0.2",
));

apinstein

<?php

$fromBranch = 'master';
$toBranch = 'videoClips-integration';

// find common ancestor
$commonAncestor = commonAncestor($fromBranch, $toBranch);
print "Common ancestor of {$fromBranch}..{$toBranch} is {$commonAncestor}\n";

apinstein

# Custom ImageMagick build for Heroku via Vulcan

vulcan create vulcan-builder

curl -O http://www.imagemagick.org/download/legacy/ImageMagick-6.7.4-10.tar.gz
tar zxvf ImageMagick-6.7.4-10.tar.gz
vulcan build -v -s ./ImageMagick-6.7.4-10 -c "./configure --prefix /app/vendor/ImageMagick-6.7.4-10 '--disable-shared' '--with-quantum-depth=8' '--with-lcms' '--with-gslib' --'with-fontconfig' && make install" -p /app/vendor/ImageMagick-6.7.4-10
# ==> downloads output to /tmp/ImageMagick-6.7.tgz

cd /path/to/project

apinstein

Ensure a consistent execution environment

1. Always start the script with a shebang line

   #!/bin/bash
   

2. Always run the script directly