Connect timeouts, buffer sizes, ephemeral ports.
Multistep scaling, unsharp masking, HiDPI.
The worst thing that can happen: wrong function body is called.
Advanced Hadoop topics
Let's solve some real-world problems and see why by-the-book solutions do not work and how to fix this.
Long-read about storage subsystem, with images!
Article provides overall coverage of storage subsystem with main focus on performance. It is split into theoretical and practical parts. Theoretical part is dedicated to the components of IO stack with particular attention to modern data storage devices: HDD and SSD. Theory of operation provides the basis for explaining performance advantages and limitations of corresponding device; real-world test results are included as well. Practical part lists various methods of performance improvement and also gives hands-on advices about everyday tasks. Reader is expected to have previous experience of programming and system administration in Linux environment.
Supplementary benchmarking tool: drvperf