[Tarantool-patches] [PATCH v2 luajit 15/41] perf: adjust md5 in LuaJIT-benches

[Sergey Bronnikov]

Hi, Sergey!

thanks for the patch! LGTM

Sergey

On 12/26/25 12:17, 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/md5.lua | 30 ++++++++++++++++++++++++------
>   1 file changed, 24 insertions(+), 6 deletions(-)
>
> diff --git a/perf/LuaJIT-benches/md5.lua b/perf/LuaJIT-benches/md5.lua
> index fdf6b4a7..556a0cd5 100644
> --- a/perf/LuaJIT-benches/md5.lua
> +++ b/perf/LuaJIT-benches/md5.lua
> @@ -1,5 +1,11 @@
> +-- Benchmark to check the performance of the bit operations.
> +-- Calculates the MD5 hash sum from the fixed string.
> +-- For more details about the MD5 algorithm see:
> +--https://en.wikipedia.org/wiki/MD5
>   
>   local bit = require("bit")
> +local bench = require("bench").new(arg)
> +
>   local tobit, tohex, bnot = bit.tobit or bit.cast, bit.tohex, bit.bnot
>   local bor, band, bxor = bit.bor, bit.band, bit.bxor
>   local lshift, rshift, rol, bswap = bit.lshift, bit.rshift, bit.rol, bit.bswap
> @@ -147,7 +153,7 @@ assert(md5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') ==
>   assert(md5('12345678901234567890123456789012345678901234567890123456789012345678901234567890') ==
>          '57edf4a22be3c955ac49da2e2107b67a')
>   
> -local N = tonumber(arg and arg[1]) or 10000
> +local N = tonumber(arg and arg[1]) or 20000
>   
>     -- Credits: William Shakespeare, Romeo and Juliet
>   local txt = [[Rebellious subjects, enemies to peace,
> @@ -176,8 +182,20 @@ Once more, on pain of death, all men depart.]]
>     txt = txt..txt..txt..txt
>     txt = txt..txt..txt..txt
>   
> -for i=1,N do
> -  res = md5(txt)
> -end
> -assert(res == 'a831e91e0f70eddcb70dc61c6f82f6cd')
> -
> +bench:add({
> +  name = 'md5',
> +  payload = function()
> +    local res
> +    for _ = 1, N do
> +      res = md5(txt)
> +    end
> +    return res
> +  end,
> +  checker = function(res)
> +    assert(res == 'a831e91e0f70eddcb70dc61c6f82f6cd')
> +    return true
> +  end,
> +  items = N,
> +})
> +
> +bench:run_and_report()
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