sysbench.lua

#!/usr/bin/env sysbench

-- you can run this script like this:
-- -- $ ./prime-test.lu0a --cpu-max-prime=20000 --threads=8 --report-interval=10 --time=999999999 run

sysbench.cmdline.options = {
    -- the default values for built-in options are currently ignored, see
    -- https://github.com/akopytov/sysbench/issues/151
    ["test"] = {"test", "cpu"},
    ["cpu-max-prime"] = {"CPU maximum prime", 20000},
    ["threads"] = {"Number of threads", 1},
    ["report-interval"] = {"Report interval", 1}
}

function event()
    local n = 0
    for c = 3, sysbench.opt.cpu_max_prime do
        local t = math.sqrt(c)
        local isprime = true
        for l = 2, t do
            if c % l == 0 then
                isprime = false
                break
            end
        end
        if isprime then
            n = n + 1
        end
    end
end

function sysbench.hooks.report_intermediate(stat)
        local curTime = os.time()
        local seconds = stat.time_interval
        print(string.format("%s, %4.2f",
                                os.date("%H:%M:%S"),
                                stat.events / seconds))
end