gh-1700

bench.lua

local fiber = require('fiber')
local clock = require('clock')

local fibers, iterations = (tonumber(arg[1]) or 1e1), (tonumber(arg[2]) or 1e4)
io.write(("#1700 bench: fibers: %d; iterations: %d"):format(fibers, iterations))

local GLOBAL = fibers

local f = { }
for i = 1, fibers do
  f[i] = fiber.new(function(id, iterations)
    for i = 1, iterations do fiber.yield() end
    GLOBAL = GLOBAL - 1
  end, i, iterations)
end

local start = clock.time64()

while GLOBAL > 0 do fiber.yield() end

local stop = clock.time64()

io.write((" => %f sec\n"):format(tonumber(stop - start) / 1e9))


os.exit(0)

bench.sh

#!/bin/sh

TARANTOOL=${1:-./src/tarantool}
RUNS=${2:-15}
BENCHD=bench.d

if [ -d $BENCHD ]; then
  echo "$BENCHD is in $(pwd)"
  exit 1;
fi

mkdir -p $BENCHD

$TARANTOOL -v | head -1 | tee $BENCHD/tarantool.version

for i in $(seq 1 $RUNS)
do
  echo "Run #$i" > $BENCHD/bench.$i
  echo -n "Run #$i: ["
  for fibers in 10 100 1000 10000
  do
    for iterations in 100 1000 10000 100000
    do
      echo -n "*"
      taskset -a 0x10 $TARANTOOL bench.lua $fibers $iterations &>> $BENCHD/bench.$i
    done
  done
  echo "]"
done