performance

4 articles · All tags

• HTTP Caching
  How Cache-Control, ETag, Last-Modified, and If-None-Match headers let browsers and intermediaries reuse responses, saving bandwidth and load.
• TCP Congestion Control
  The mechanisms that let TCP share network capacity fairly, adjusting each connection's sending rate in response to congestion signals.
• SQL Indexes and Query Performance
  How database indexes make lookups fast, when they help, and how to design them for predictable query cost.
• Big O Notation
  A notation for describing how an algorithm's runtime or memory usage grows as the input size increases.