OLS Audio

• Keynote, Ogg Speex quality 5, 14.4 MB
• Keynote, Ogg Speex quality 8, 22.9 MB
• Transcript of keynote (from Groklaw)


• New approaches in software provisioning and system maintenance - Matthew S. Wilson: Q5, 13.5 MB - Q8, 21.3 MB
• Creating Cross-Compile Friendly Software - Sam Robb: Q5, 12.4 MB - Q8, 19.6 MB
• The Cursor Wiggles Faster: Measuring Scheduler Performance - Rick Lindsley: Q5, 9.9 MB - Q8, 15.7 MB
• Linux on NUMA - Martin J Bligh: Q5, 11.2 MB - Q8, 17.7 MB
• I would hate user space locking if it weren't that sexy... - Inaky Perez-Gonzalez: Q5, 11.1 MB - Q8, 17.6 MB
• Run-time testing of LSB Applications - Stuart Anderson: Q5, 11.1 MB - Q8, 17.6 MB
• Issues with Selected Scalability Features of the 2.6 Kernel - Dipankar Sarma: Q5, 12.1 MB - Q8, 19.2 MB
• New Features of Qt 4 - Jasmin Blanchette: Q5, 13.5 MB - Q8, 21.4 MB
• ia64-linux perf tools for IO dorks - Grant Grundler: Q5, 11.1 MB - Q8, 17.6 MB
• Hotplug Memory and the Linux VM - Dave Hansen: Q5, 9.4 MB - Q8, 14.9 MB
• Linux Kernel Hotplug CPU Support - Rusty Russell: Q5, 12.3 MB - Q8, 19.5 MB
• Linux Virtualization on IBM Power5 Systems - Dave Boutcher: Q5, 12.0 MB - Q8, 19.1 MB (starts ~10min in)
• Perl 6 - Damian Conway: Q5, 13.0 MB - Q8, 20.6 MB
• Object-based reverse mapping - Dave McCracken: Q5, 5.9 MB - Q8, 9.3 MB
• Demands, Solutions, and Improvements for Linux Filesystem Security - Michael Austin Halcrow: Q5, 11.6 MB - Q8, 18.3 MB
• Towards Linux-based Open Telecom Platforms - Ibrahim Haddad: Q5, 8.8 MB - Q8, 13.9 MB
• On a Kernel Events Layer and User-space Message Bus System - Robert Love: Q5, 12.7 MB - Q8, 20.2 MB
• Linux-tiny and directions for small systems - Matt Mackall: Q5, 10.0 MB - Q8, 15.9 MB
• Xen and the Art of Open Source Virtualization - Ian Pratt: Q5, 13.3 MB - Q8, 21.1 MB
• TIPC: Providing Communication for Linux Clusters - Jon Paul Maloy: Q5, 10.9 MB - Q8, 17.2 MB
• The world of OpenOffice - Michael Meeks: Q5, 10.9 MB - Q8, 15.4 MB
• Page-Flip Technology for use within the Linux Networking Stack - John A Ronciak: Q5, 12.9 MB - Q8, 20.4 MB
• ct_sync - state replication of ip_conntrack - Harald Marc Welte: Q5, 13.0 MB - Q8, 20.6 MB (first ~30sec missing)
• "On-demand" Linux in a Power-aware Microsensor - Carl D. Worth: Q5, 12.3 MB - Q8, 19.5 MB
• Achieving CAPP/EAL3+ Security Certification for Linux - Kittur (Doc) S Shankar: Q5, 14.4 MB - Q8, 22.8 MB
• Increasing the appeal of Open Source projects - Mats Wichmann: Q5, 12.7 MB - Q8, 20.1 MB
• SMP and frequency scaling - Paul Devriendt: Q5, 15.8 MB - Q8, 25.1 MB
• Workload Dependant Performance Evaluation of the 2.6 I/O Schedulers - Steven L. Pratt: Q5, 7.9 MB - Q8, 12.6 MB
• Linux 2.6 performance improvement through readahead optimization - Ram Pai: Q5, 12.1 MB - Q8, 19.2 MB
• kobjects and krefs - lockless reference counting for kernel structures - Greg Kroah-Hartman: Q5, 11.7 MB - Q8, 18.5 MB
• Comparing and Evaluating epoll(), select(), and poll() - Louay Gammo: Q5, 12.7 MB - Q8, 20.2 MB

Playback help

All audio files are in Ogg Speex format. Suggested players:

• Linux and OSX: Use xmms with the speex-xmms plugin
• You can also use speexdec on the command line:
  • speexdec filename.spx to play,
  • speexdec filename.spx filename.wav to decode to .wav.
• Windows users: Try this.

Technical details

Audio was recorded from Thursday lunchtime onwards. I unfortunately did not get hardware in advance, and it took a fair amount of time to get all the audio software working on the machines AMD sent.

Downstairs audio was sent directly from the mixer's inserts (pre-fader) to Richard's Delta 1010 sound card and recorded using Ardour. Upstairs audio was sent from an aux. send via the Congress Centre's in-house wiring to the downstairs mixer (for monitoring) and then to the Delta 1010. For the keynote, we brought the recording PC upstairs and used two aux. sends: one for Andrew Morton's mic. and one for the handheld wireless.

Unfortunately, questions can not be heard in the recordings except in the keynote when Rusty ran around with a wireless mic. Next year, I'm considering setting up some microphones to record audience questions. Email me if you would like to hear this happen so I know it's worth the money and effort.

Thanks to Richard for lending equipment and providing advice and EQ help, Martin, Kevin, and Mike for help with setup, teardown, and running the mixers, and to Paul Davis and the rest of the Ardour team for their software.

Send comments, questions, flames, etc. to audio [at] linuxsymposium [dot] org