A recent Phoronix article described new performance counters being added to the Linux kernel. This seemed intriguing to me as a way to get analysis that previously had only done on Intel however it required a few steps. The first … Continue reading →
A few examples trying the AMDuProfCLI command. This seems to go through a “collect” stage followed by a “report” stage. There are some pre-defined profiles that can be seen with the “AMDuProfCLI info –list collect-configs command mev@sacramento:~$ AMDuProfCLI info –list … Continue reading →
There is a now a profiling tool named uprof for AMD CPUs/GPUs. Looking at the features I see a number of interest: Support for newest Zen4 CPUs which have added topdown performance counters. So with a Linux 6.2 kernel, I … Continue reading →
As June is coming to a close, useful to take stock of what is completed and what still remains. During June, the following were done: Phoronix benchmark list: I finished going through ~120 Phoronix benchmarks to at least do a … Continue reading →
I have added support to wspy for the –memstats option.
Continue reading →May coming to a close, useful to take stock of where analysis is at as well as next steps. I was cycling a good portion of May. The other parts were most focused on adding benchmark analysis needed for some … Continue reading →
I have updated the topdown wrapper script to add some additional cache statistics for level 3 backend related information. I have also added a -x option to display some rusage information.
Continue reading →The Intel topdown performance analysis method separates out frontend stalls (level 1) into latency (level 2) and bandwidth (level 2). A frontend latency stall is when 0 uops are issued at all because the frontend is waiting. A frontend bandwidth … Continue reading →
I have added a basic tool “topdown” that is a wrapper to collect topdown metrics.
Continue reading →As April finished, useful to take stock of where analysis is at as well as next steps. During May, I may also take a few week break to finish publishing my book and a cycle trip- so also useful to … Continue reading →