mirror of https://github.com/rxi/json.lua.git
63 lines
1.3 KiB
Lua
63 lines
1.3 KiB
Lua
local bench = {}
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local unpack = unpack or table.unpack
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local fmt = string.format
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function bench.run(name, count, func)
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-- Run bench
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local res = {}
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for i = 1, count do
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local start_time = os.clock()
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func()
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table.insert(res, (os.clock() - start_time))
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end
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-- Calculate average
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local avg = 0
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for i, v in ipairs(res) do
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avg = avg + v
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end
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avg = avg / #res
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-- Build and return result table
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return {
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name = name,
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avg = avg,
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min = math.min(unpack(res)),
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max = math.max(unpack(res)),
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all = res,
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}
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end
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function bench.get_cpu_name()
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local fp = io.open("/proc/cpuinfo", "rb")
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if not fp then
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return "unknown"
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end
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local text = fp:read("*a")
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return text:match("model name%s*:%s*(.-)\n")
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end
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function bench.print_system_info()
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print( fmt("Lua version : %s", jit and jit.version or _VERSION) )
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print( fmt("CPU name : %s", bench.get_cpu_name()) )
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end
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function bench.print_results(results)
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-- Find best average
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local best = math.huge
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for i, v in ipairs(results) do
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best = math.min(best, v.avg)
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end
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-- Print results
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for i, v in ipairs(results) do
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print( fmt("%-13s : %.03gs [x%1.3g] (min: %.03gs, max %.03gs)",
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v.name, v.avg, v.avg / best, v.min, v.max) )
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end
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end
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return bench
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