Patriot Torqx 2 vs Patriot Warp
I’m replacing a Patriot Torqx drive which failed and Patriot has given me the options of replacing it with a Torqx 2 or a Warp drive.
Archive of entries posted by Jesse Johnson
various ways of escaping content in ruby
It’s difficult to keep these all straight: CGI::escapeHMTL ERB::Util::html_escape CGI::escape – replaces URI::escape URI::encode_www_form URI::encode_www_form_component String::inspect
Storing hierarchical (tree) data in SQL using Ruby on Rails
I have a Ruby On Rails project with a fair amount of hierarchical data. I have already tried a few different techniques of managing this data. Nested sets and materialized paths sound good in theory but in practice they didn’t work out so well. Here are some thoughts thus far.
storing money in decimal fields in MySQL
I haven’t found a lot of advice about what precision values to use for storing money in decimal fields. Here’s what I calculated. The scale is going to be 2 for US currency which requires 1 byte of storage. precision 4, scale 2 = 2 bytes of storage, 99.99 to -99.99 precision 6, scale 2 …
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Ubuntu 11.04 bugs I’ve experienced thus far
Bug #785681 in xserver-xorg-video-intel (Ubuntu): “Unable to unblank screen, cursor still present” Bug #616131 in netbeans (Ubuntu): “JavaScript support in NetBeans” Bug #632984 in wxwidgets2.8 (Debian): “libwx_gtk2u_media-2.8.so.0 missing from libwxgtk2.8-0” Bug #790538 in pam (Ubuntu): “pam update causes cron to stop working with “Module is unknown” error” Bug #659738 in sysvinit (Ubuntu): “Duplicate welcome message …
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Xen 4.0 and 4.1 packages for Ubuntu and Debian
Packages can be found here: https://launchpad.net/~agent-8131/+archive/ppa/+packages Design goals: packages created for xen 4.0.1 and xen 4.1.0 packages mirror install of xen as closely as possible currently only hypervisor and utils are included (make xen and make tools) no rc.d scripts setup, that’s left to user should be installable and functional on Debian and Ubuntu and …
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Fixing netbeans in ubuntu
Netbeans has some issues in Ubuntu 10.10 and 11.04. One of the most serious is that javascript syntax highlighting does not work. Another is that Rails 3 applications do not run or debug correctly. I found the solution to be going to “Tools – Plugins -Settings” and enabling the “Netbeans” update center. Then by going …
Attempting to package Xen
I’m not an expert at Debian packaging but I’ve been gotten tired of building Xen on every systems and losing the advantages that packaging brings like tracking file conflicts. So I decided to try and package Xen though I have had no luck so far. I am making slow but steady progress. I wanted to …
Working with Xen 4.1
I took a development box running Xen 3.3 on Ubuntu 8.04 and upgraded in to Ubuntu 10.04 and installed Xen 4.1.0 from source. I still believe Xen is the best open source virtualization solution. At some point I’ll have to write up my experiments testing KVM + libvirt but suffice if to say the performance …
shaping p2p traffic
I’ve been doing more work with linux traffic control. I’m finding my earlier efforts are too complicated and end up introducing latency. My latest shaper is very simple. I decided I wanted to check in on the status of a couple of projects that can be used to classify p2p traffic. ipp2p – discontinued, recommends …