3 ms·
Wow great debugging article from the performance guru B.Gregg. I'm also not comfortable tracing kernel functions as of yet and remain in user space so far with
by joshbaptiste 12y ago
Wow great debugging article from the performance guru B.Gregg. I'm also not comfortable tracing kernel functions as of yet and remain in user space so far with Sysdig,strace,ltrace.. but a tool such as perf(1) I definitely need a more practical understanding of.
- sounds 12y agoHere are some perf(1) highlights if you want to get started: • https://news.ycombinator.com/item?id=6842338 https://news.ycombinator.com/item?id=6842338 • https://news.ycombinator.com/item?id=7679822 https://news.ycombinator.com/item?id=7679822 • https://perf.wiki.kernel.org/index.php/Tutorial https://perf.wiki.kernel.org/index.php/Tutorial Try to look closely at the methods used to correctly apply perf(1) to the problem at hand. If it feels like you understand _why_ it was used, you'll easily be able to determine if it's the right tool for the job.