[pebblexe]

Does anyone know of an easy way to interact with performance monitor counters in Linux? I've been reading stuff by Brendan Gregg about DTrace and the importance of PMCs, and it made it sound like Linux doesn't have the equivalent.

[caf]

Yes, this is what "perf stat <command>" does. Add more -d options to see more counters, or use -e to ask for specific counter(s) ("perf list" to list them).

[Langdal]

Another nice tool is likwid. It lets you select a performance counter group (e.g. L3 CACHE) to monitor while running a program. It also provides derived metrics.

https://github.com/RRZE-HPC/likwid

[CalChris]

VTune has a Linux client. That would be the best by far.

https://software.intel.com/en-us/intel-vtune-amplifier-xe

There's also PAPI and TAU:

http://icl.utk.edu/papi/

http://www.cs.uoregon.edu/research/tau/home.php

[dima55]

There are multiple tools, and that's all Brendan Gregg has been talking about for years. Read any non-ancient posts on his blog.

[adamnemecek]

it's not quite there (AFAIK) yet but here's an attempt https://github.com/dtrace4linux/linux