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<p>Hi, Sergey!</p>
<p>Thanks for the patch! LGTM</p>
<p>Sergey</p>
<div class="moz-cite-prefix">On 12/26/25 12:17, Sergey Kaplun wrote:<br>
</div>
<blockquote type="cite"
cite="mid:3d7e6442ea25d89184fce87709e0fb01998de48b.1766738771.git.skaplun@tarantool.org">
<pre wrap="" class="moz-quote-pre">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 output is redirected to /dev/null. The checker tests the result
after the exact amount of iterations for the fixed field (as it is
declared in the original benchmark).
---
perf/LuaJIT-benches/life.lua | 89 ++++++++++++++++++++++++++++++++++--
1 file changed, 86 insertions(+), 3 deletions(-)
diff --git a/perf/LuaJIT-benches/life.lua b/perf/LuaJIT-benches/life.lua
index 911d9fe1..dbf26fac 100644
--- a/perf/LuaJIT-benches/life.lua
+++ b/perf/LuaJIT-benches/life.lua
@@ -1,11 +1,19 @@
-- life.lua
--- original by Dave Bollinger <a class="moz-txt-link-rfc2396E" href="mailto:DBollinger@compuserve.com"><DBollinger@compuserve.com></a> posted to lua-l
+-- The benchmark to check the performance of array-like data
+-- structures with RW access. John Horton Conway's "Game of Life"
+-- cellular automaton.
+-- For the details see:
+-- <a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life">https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life</a>
+-- Original by Dave Bollinger <a class="moz-txt-link-rfc2396E" href="mailto:DBollinger@compuserve.com"><DBollinger@compuserve.com></a> posted
+-- to lua-l:
+-- <a class="moz-txt-link-freetext" href="http://lua-users.org/lists/lua-l/1999-12/msg00003.html">http://lua-users.org/lists/lua-l/1999-12/msg00003.html</a>
-- modified to use ANSI terminal escape sequences
-- modified to use for instead of while
+local bench = require('bench').new(arg)
+
local write=io.write
-ALIVE="�" DEAD="�"
ALIVE="O" DEAD="-"
function delay() -- NOTE: SYSTEM-DEPENDENT, adjust as necessary
@@ -106,6 +114,81 @@ function LIFE(w,h)
if gen>2000 then break end
--delay() -- no delay
end
+ return thisgen
end
-LIFE(40,20)
+-- Result of the LIFE(40, 20) after 2000 generations.
+--[[
+----------------------------------------
+----------------------------------------
+--OO--------------------------O---------
+-OO--------------------------O-O--------
+---O--------------------------O---------
+----------------------------------------
+----------------------------------------
+----------------------------------------
+----------------------------------------
+----------------------------------------
+----------------------------------------
+----------------------------------------
+---O------------------------------------
+--O-O-----------------------------------
+--O-O-----------------------------------
+---O------------------------------------
+----------------------------------------
+-------OO-------------------------------
+-------OO-------------------------------
+----------------------------------------
+]]
+
+local function check_life(thisgen, w, h)
+ local expected_cells = ARRAY2D(w, h)
+ for y = 1, h do
+ for x = 1, w do
+ expected_cells[y][x] = false
+ end
+ end
+ local alive_cells = {
+ {3, 3}, {3, 4}, {3, 31},
+ {4, 2}, {4, 3}, {4, 30}, {4, 32},
+ {5, 4}, {5, 31},
+ {13, 4},
+ {14, 3}, {14, 5},
+ {15, 3}, {15, 5},
+ {16, 4},
+ {18, 8}, {18, 9},
+ {19, 8}, {19, 9},
+ }
+ for _, cell in ipairs(alive_cells) do
+ local y, x = cell[1], cell[2]
+ expected_cells[y][x] = true
+ end
+ for y = 1, h do
+ for x = 1, w do
+ assert(thisgen[y][x] > 0 == expected_cells[y][x],
+ ('Incorrect value for cell (%d, %d)'):format(x, y))
+ end
+ end
+ return true
+end
+
+local stdout = io.output()
+
+bench:add({
+ name = 'life',
+ setup = function()
+ io.output('/dev/null')
+ end,
+ payload = function()
+ return LIFE(40, 20)
+ end,
+ teardown = function()
+ io.output(stdout)
+ end,
+ checker = function(res)
+ return check_life(res, 40, 20)
+ end,
+ items = 2000 * 40 * 20,
+})
+
+bench:run_and_report()
</pre>
</blockquote>
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