Feb 9, 2010 · Here I wrote some more information on using Linux `perf`: First of all - this is tutorial about Linux profiling with perf You can use perf if your Linux Kernel is greater than 2.6.32 or OProfile if it is …

Jun 27, 2016 · The perf technique I published [1] was a high-overhead workaround, until perf has BPF support for doing this. Right now, the lowest cost way of generating an off-CPU flame graph on Linux …

I tried out linux' perf utility today and am having trouble in interpreting its results. I'm used to valgrind's callgrind which is of course a totally different approach to the sampling based metho...

When using perf report, I don't see any symbols for my program, instead I get output like this: $ perf record /path/to/racket ints.rkt 10000 $ perf report --stdio # Overhead Command Shared

Jun 23, 2011 · @Martin-R linux-tools-generic always points at the tools for the most up to date kernel version. When running an older kernel (e.g. a server with a couple months uptime) if you want perf …

Dec 18, 2008 · Description: perf is a powerful performance analysis tool that is part of the Linux kernel. It provides a wide range of features, including CPU performance counters, tracepoints, and more.

Jul 9, 2016 · 21 Linux's perf utility is famously used by Brendan Gregg to generate flamegraphs for c/c++, jvm code, nodejs code, etc. Does the Linux kernel natively understand stack traces? Where …

Jan 2, 2015 · Though I can intuitively get most of the results, I'm having hard time fully understanding the output of the perf report command especially for what concerns the call graph, so I wrote a stupid …

Jan 3, 2015 · I am trying to get performance of individual functions within a process. How can I do it using perf tool? Is there any other tool for this? For example, let's say, main function calls functions A...

Jan 25, 2024 · Presumably you have a version of perf from before perf sched was added. perf 6.5 on my Arch Linux system has it, and I think it's been around for at least a year or so.