So due to a missing error handler we had indeed tombstoned a large amount of state within the erlang runtime in situations where connections had timed out or been reset.
Mark Wolfe wolfeidau
🐺
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| Microsoft Windows [Version 6.1.7601] | |
| Copyright (c) 2009 Microsoft Corporation. All rights reserved. | |
| C:\Users\markw>where ruby.exe | |
| C:\RailsInstaller\Ruby1.9.3\bin\ruby.exe | |
| C:\Users\markw> |
wolfeidau
/ gist:2478613
Created
April 24, 2012 10:19
strace of active record require and fopen calls.
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| markw@markw-VirtualBox:~/Code/Ruby/testloadapp$ strace -eopen ruby -r active_record -e ActiveRecord::Base 2>&1 | wc -l | |
| 3462 | |
| markw@markw-VirtualBox:~/Code/Ruby/testloadapp$ strace -eopen ruby -r ./config/environment -e ActiveRecord::Base 2>&1 | wc -l | |
| 30873 | |
| markw@markw-VirtualBox:~/Code/Ruby/testloadapp$ | |
| https://gist.github.com/2478613 | |
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| # install libyaml via homebrew cause I can't be bothered going and finding it. | |
| brew install libyaml | |
| # going to work in my versions dir, will remove sources afterwards.. | |
| cd /Users/markw/.rbenv/versions | |
| # clone ruby goodness | |
| git clone https://github.com/tenderlove/ruby.git | |
| # checkout the probes branch |
wolfeidau
/ gist:2486226
Created
April 25, 2012 04:05
If you installed 1.9.3-p125 update your rubygems.
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| ruby -v | |
| ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-darwin11.3.0] | |
| gem -v | |
| 1.8.11 | |
| time ruby -r active_record -e ActiveRecord::Base | |
| 2.05s user 0.05s system 99% cpu 2.101 total | |
| gem -v |
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| root@OpenWrt:~# erl | |
| Erlang R15B01 (erts-5.9.1) [source] [async-threads:0] [kernel-poll:false] | |
| Eshell V5.9.1 (abort with ^G) | |
| 1> erlang:system_info(system_architecture). | |
| "mips-openwrt-linux-gnu" | |
| 2> q(). | |
| ok | |
| 3> root@OpenWrt:~# uname -a | |
| Linux OpenWrt 3.3.6 #1 Sun May 20 15:43:19 EST 2012 mips GNU/Linux |
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| $ java -version | |
| java version "1.6.0_31" | |
| Java(TM) SE Runtime Environment (build 1.6.0_31-b04) | |
| Java HotSpot(TM) 64-Bit Server VM (build 20.6-b01, mixed mode) | |
| $ which atlas-mvn | |
| /home/markw/Applications/atlassian-plugin-sdk-3.10.3/bin/atlas-mvn | |
| $ atlas-mvn | |
| Executing: /home/markw/Applications/atlassian-plugin-sdk-3.10.3/apache-maven/bin/mvn | |
| Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/classworlds/Launcher | |
| Caused by: java.lang.ClassNotFoundException: org.codehaus.classworlds.Launcher |
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| /usr/local/bin/httperf --server=10.0.64.198 --port=8080 --uri=/hello/mark --num-conns=10 --num-calls=100 | |
| /usr/local/bin/httperf --server=10.0.64.198 --port=3000 --uri=/hello/mark --num-conns=10 --num-calls=100 |
wolfeidau
/ gist:3263920
Created
August 5, 2012 11:07
For example, imagine that you want to sign the following request:
PUT /quotes/nelson HTTP/1.0
Content-Md5: c8fdb181845a4ca6b8fec737b3581d76
Content-Type: text/html
Date: Thu, 17 Nov 2005 18:49:58 GMT
X-Amz-Meta-Author: [email protected]
X-Amz-Magic: abracadabra
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| termcapinfo xterm* ti@:te@ | |
| startup_message off | |
| vbell off | |
| autodetach on | |
| altscreen on | |
| shelltitle "$ |bash" | |
| defscrollback 10000 | |
| defutf8 on | |
| nonblock on |