We talk about how to detect if your program is spending a lot of time in kernel mode (system mode) and investigate ways to speed them up.
All posts tagged strace
Lessons in debugging: observe how programs interact with the Linux kernel with STRACE
There are a subset of problems in software development that can be traced back to system calls or signals. Learn about STRACE, tool that let you trace system calls and signals and that can help you quickly figure out the origin of those problems.