[Tarantool-patches] [PATCH v2 luajit 06/41] perf: adjust chameneos in LuaJIT-benches

[Sergey Kaplun via Tarantool-patches <tarantool-patches@dev.tarantool.org>]

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/chameneos.lua | 38 +++++++++++++++++++++++--------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/perf/LuaJIT-benches/chameneos.lua b/perf/LuaJIT-benches/chameneos.lua
index 78b64c3f..9bd83081 100644
--- a/perf/LuaJIT-benches/chameneos.lua
+++ b/perf/LuaJIT-benches/chameneos.lua
@@ -1,8 +1,16 @@
+-- The benchmark to check the performance of coroutine interaction
+-- using symmetrical rendezvous requests.
+-- For the details see:
+-- https://pybenchmarks.org/u64q/performance.php?test=chameneosredux
+-- https://cedric.cnam.fr/PUBLIS/RC474.pdf
+
+local bench = require("bench").new(arg)
 
 local co = coroutine
 local create, resume, yield = co.create, co.resume, co.yield
 
-local N = tonumber(arg and arg[1]) or 10
+local N = tonumber(arg and arg[1]) or 1e7
+local N_ATTEMPTS = N
 local first, second
 
 -- Meet another creature.
@@ -57,12 +65,24 @@ local function schedule(threads)
   until false
 end
 
--- A bunch of colorful creatures.
-local threads = {
-  creature("blue"),
-  creature("red"),
-  creature("yellow"),
-  creature("blue"),
-}
+bench:add({
+  name = "chameneos",
+  items = N_ATTEMPTS,
+  checker = function(meetings) return meetings == N_ATTEMPTS * 2 end,
+  payload = function()
+    -- A bunch of colorful creatures.
+    local threads = {
+      creature("blue"),
+      creature("red"),
+      creature("yellow"),
+      creature("blue"),
+    }
+
+    local meetings = schedule(threads)
+    -- XXX: Restore meetings for the next iteration.
+    N = N_ATTEMPTS
+    return meetings
+  end,
+})
 
-io.write(schedule(threads), "\n")
+bench:run_and_report()
-- 
2.52.0