How to kill 4 chickens in 3 years

I had a great time at Ignite Portland 5 last night. There were seventeen other fantastic presenters, amazing volunteers and the always great Legion of Tech crew there to cheer us all on. Oh, and like 700 people in the crowd!

Thanks to everyone who helped me out on this presentation. Especially my husband, Scott, who really did volunteer for that slide.

Enjoy the slidecast below, with some audio commentary I recorded this morning (drop.io FTW!) below. @linuxaid‘s video should be up soon!

And here’s @linuxaid’s video:


Leading without being in charge: updated slides for FOSDEM 2009

I’ve got a post about Heikki’s visibility map talk in the queue, but first I’ll post the updated slides for the user groups talk — Leading without being in charge.

Enjoy!

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Filesystem I/O at the Linux Plumbers Conference

http://osdldbt.sourceforge.net/dl380/4disk/sraid10/ext3/read-write/
graph from software raid, RAID10, no partition table, ext3, read-write load

If you haven’t heard, the Linux Plumbers Conference is happening September 17-19, 2008 in Portland, OR. It’s a gathering designed to attract Linux developers – kernel hackers, tool developers and problem solvers.

A few of us that met through the Portland PostgreSQL User Group (PDXPUG) pitched an idea for a talk on filesystem performance. We wanted to examine performance conventional wisdom and put it to the test on some sweet new hardware, recently donated for performance testing Postgres. We’re asking questions like: Is RAID5 really the worst performing configuration for a database? How much does partition alignment really matter? Is there one Linux filesystem that a DBA should always choose for best performance under any load? Is adaptive readahead all that?

Our talk was accepted, so we’ve been furiously gathering data, and drawing interesting conclusions, ever since. Gabrielle Roth and I are presenting, using the results of extensive testing conducted by Mark Wong, a database benchmarking expert and author of pg_top. We’ll be sharing 6 different assumptions about filesystem performance, tested on five different filesystems, under five types of loads generated by fio, a benchmarking tool designed by kernel hacker Jens Axboe to test I/O.

User Groups redux

lousy cup!
actually, i love this cup. thanks, eric! :)

It’s a bit late for an “announcement”, but Gabrielle and I are re-presenting the User Groups talk to the Portland Linux Users Group tonight. We’re all about audience participation, and so we’re going to focus on helping PLUG pick a few topics and presenters for upcoming meetings. And whatever else they want to talk about :)

Meeting starts at 7pm and here’s where:

Fariborz Maseeh College of Engineering & Computer Science Building
Room FAB 86-01 (This is in the basement.)
The building is on SW 4th across from SW College Street.
See location H-10 on map at http://pdxLinux.org/campus_map.jpg

Beer afterward at Jax!

Jax Bar And Restaurant
826 SW 2nd Avenue

Running a Successful User Group

running a successful user group

After the People For Geeks talk, I presented “Running a Successful User Group” with Gabrielle Roth on Wednesday. You can find our slides and our presentation handout over on Bacon and Tech. The handout is pretty cool, take a minute and print it out!