Hi, I've been doing work on epoll, and I've found that most related (micro)benchmarks are either randomly scattered across the net, or simply non-existent. These patches are a start to addressing this (more to come). Similar to what we have for futexes, perf-bench allows kernel developers mainly to quickly test performance changes to the code in question. Similarly, such programs are not intended for comparing different IO polling methods. Hence everything is very adhoc and outputs raw microbenchmark numbers. Also this uses eventfd, similar tools tend to use pipes or sockets, but the result is the same.
Thanks! Davidlohr Bueso (2): perf-bench: Add epoll parallel epoll_wait benchmark perf-bench: Add epoll_ctl(2) benchmark tools/perf/Documentation/perf-bench.txt | 10 + tools/perf/bench/Build | 3 + tools/perf/bench/bench.h | 3 + tools/perf/bench/epoll-ctl.c | 411 ++++++++++++++++++++++++ tools/perf/bench/epoll-wait.c | 536 ++++++++++++++++++++++++++++++++ tools/perf/builtin-bench.c | 9 + 6 files changed, 972 insertions(+) create mode 100644 tools/perf/bench/epoll-ctl.c create mode 100644 tools/perf/bench/epoll-wait.c -- 2.16.4
