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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi guys, On 11/22/18 11:36 AM, Arnaldo Carvalho de Melo wrote: > + /* default to the number of CPUs and leave one for the writer pthread */ > + if (!nthreads) > + nthreads = cpu->nr - 1; If there is only one CPU (e.g. a virtualized VM with only one vCPU), what is the correct test model for epoll_wait benchmark ? Is the behavior the same as using -t to explicitly specify 1: $ perf bench epoll wait -r 30 -t 1 or do we need: nthreads = max(perf_cpu_map__nr(cpu) - 1, 1); ?