[Tarantool-patches] [PATCH v1 luajit 24/41] perf: adjust recursive-ack in LuaJIT-benches

[Sergey Bronnikov]

Hi, Sergey,

thanks for the patch!  LGTM

Sergey

On 10/24/25 13:50, Sergey Kaplun wrote:
> This patch adjusts the aforementioned test to use the benchmark
> framework introduced before. The default arguments are adjusted
> according to the <PARAM_x86.txt> file. The arguments to the script still
> can be provided in the command line run.
> ---
>   perf/LuaJIT-benches/recursive-ack.lua | 17 ++++++++++++++++-
>   1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/perf/LuaJIT-benches/recursive-ack.lua b/perf/LuaJIT-benches/recursive-ack.lua
> index fad30589..1172d4b3 100644
> --- a/perf/LuaJIT-benches/recursive-ack.lua
> +++ b/perf/LuaJIT-benches/recursive-ack.lua
> @@ -1,3 +1,5 @@
> +local bench = require("bench").new(arg)
> +
>   local function Ack(m, n)
>     if m == 0 then return n+1 end
>     if n == 0 then return Ack(m-1, 1) end
> @@ -5,4 +7,17 @@ local function Ack(m, n)
>   end
>   
>   local N = tonumber(arg and arg[1]) or 10
> -io.write("Ack(3,", N ,"): ", Ack(3,N), "\n")
> +
> +bench:add({
> +  name = "recursive_ack",
> +  -- Sum of calls for the function RA(3, N).
> +  items = 128 * ((4 ^ N - 1) / 3) - 40 * (2 ^ N - 1) + 3 * N + 15,
> +  payload = function()
> +    return Ack(3, N)
> +  end,
> +  checker = function(res)
> +    return res == 2 ^ (N + 3) - 3
> +  end,
> +})
> +
> +bench:run_and_report()
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