December 2019
Intermediate to advanced
880 pages
28h 2m
English
Content preview from BPF Performance Tools
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Appendix A. bpftrace One-Liners
This is a selection of one-liners used throughout this book.
Chapter 6 CPUs
New processes with arguments:
bpftrace -e 'tracepoint:syscalls:sys_enter_execve { join(args->argv); }'Syscall count by process:
bpftrace -e 'tracepoint:raw_syscalls:sys_enter { @[pid, comm] = count(); }'Sample running process name at 99 Hertz:
bpftrace -e 'profile:hz:99 { @[comm] = count(); }'Sample user-level stacks at 49 Hertz, for PID 189:
bpftrace -e 'profile:hz:49 /pid == 189/ { @[ustack] = count(); }'Trace new threads via pthread_create():
bpftrace -e 'u:/lib/x86_64-linux-gnu/libpthread-2.27.so:pthread_create ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.