Give me 15 minutes and I'll change your view of Linux tracing [video]

Re:Give me 15 minutes and I'll change your view of Linux tra... by lotyrin on Thursday September 28, 2017 @04:08PM (#15360299)

BPF really seems nice. Ramifications to me though are: if I was willing to pay a few percent overhead on all my production instances, what I would be able to monitor 24/7 and get a return on the investment, and I haven't found much writing in that area.

Seems like there could be a lot of opportunity, hopefully I'll get a chance to dive in and find out myself.

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Re:Give me 15 minutes and I'll change your view of Linux tra... by tomsthumb on Thursday September 28, 2017 @06:41PM (#15361383)

> I haven't found much writing in that area

This book would _probably_ get you moving in the right direction: http://www.brendangregg.com/sysperfbook.html

It should be something like: look at your bottlenecks and utilization, look at your costs, look at (cost effective) ways to reduce or remove those bottlenecks or that utilization. Pick the cheapest place to have a bottleneck. Using SSD at an extra 30$ a month lets you use half the CPU and RAM, saving 60$ a month? Go for it.

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