Garbage collection, memory, IO and other scary stories

Happy Halloween! Want to read some scary, low-level, systems related stuff? Here's a short list of very useful articles I read recently:

• What Every Data Programmer Needs to Know about Disks
• Linux IO Scheduler
• Do You Really Get Memory?
• Quake 2 Source Code Review
• The Architecture of Open Source Applications
• Understanding Memory
• Playing with Virtual Memory
• Other links I've mentioned previously

SQL anti-patterns.

GC horror stories in the .Net world.

Still not scared? How about some math and statistics:

• Ranking data at LinkedIn
• Some more math stuff and other useful miscellaneous Java articles 
• Basic R/statistics every programmer should know
  

Boo!
Ashwin.