4 ms·
And while you're at it, it's hard to figure out what's going on in your system. I've spent some time looking, and have not yet found anything resembling a bandw
by Filligree 11y ago
And while you're at it, it's hard to figure out what's going on in your system. I've spent some time looking, and have not yet found anything resembling a bandwidth monitor for main memory.
- nkurz 11y agoIt's possible, but depending on your OS and processor it might be quite difficult. There are "Uncore" performance counters for this, but the means of access has been changing from generation to generation and the software sometimes lags behind. For Linux and Haswell EP, I've had luck with likwid: https://github.com/RRZE-HPC/likwid/wiki/Haswell-EP#memory-controller-fixed-purpose-counters https://github.com/RRZE-HPC/likwid/wiki/Haswell-EP#memory-co... You also might have luck with Andi Kleen's pmu-tools: https://github.com/andikleen/pmu-tools/blob/master/ucevent/README.md https://github.com/andikleen/pmu-tools/blob/master/ucevent/R... I don't know for sure if Intel's VTune supports these counters, but I'd presume it would: https://software.intel.com/en-us/intel-vtune-amplifier-xe https://software.intel.com/en-us/intel-vtune-amplifier-xe
- Filligree 11y agoDoesn't seem like any of them work with my E3 Xeon.