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List:       lua-l
Subject:    Re: [ANN] Lua 5.4.0 (work2) now available
From:       dyngeccetor8 <dyngeccetor8 () disroot ! org>
Date:       2018-06-24 15:11:05
Message-ID: fddceb5a-f5d4-ba00-e3a0-2a22118d6711 () disroot ! org
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On 06/23/2018 05:24 AM, dyngeccetor8 wrote:
> 5.4.0 version [...]
> execution is really slower.

I've sketched artificial test to exploit slower (but economical)
garbage collector and give a try for new random().

Can someone retest it?

    $ time lua gc_benchmark.lua
    Lua 5.3

    real  0m38.009s
    user  0m36.640s
    sys  0m1.384s

    $ time ~/Downloads/lua-5.4.0-work2/src/lua gc_benchmark.lua
    Lua 5.4

    real  1m17.759s
    user  1m16.508s
    sys  0m1.208s

-- gc_bechmark.lua (
local num_iterations = 1e8
local table_width = 1e8

print(_VERSION)

math.randomseed(os.time())

local t = {}
for i = 1, num_iterations do
  local k = math.random(table_width)
  t[k] = {}
end
-- )

-- Martin



["bechmark_performance.gif" (image/gif)]

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