Pavel-Durov

Experiment 09: JIT vs Interpreter Time Analysis

This experiment measures the time spent in JIT-compiled code versus the interpreter.

Methodology

JIT Time         = duration_jit_executing
Interpreter Time = wall_clock - jit_executing - trace_mapping - deopting

Pavel-Durov

$ multitime -n 10 -s 1 ~/yklua/src/lua ./harness.lua Queens 10 1000
Starting Queens benchmark ...
Queens: iterations=1 runtime: 494681us
Queens: iterations=1 runtime: 457936us
Queens: iterations=1 runtime: 461543us
Queens: iterations=1 runtime: 458264us
Queens: iterations=1 runtime: 457801us
Queens: iterations=1 runtime: 457150us
Queens: iterations=1 runtime: 458036us
Queens: iterations=1 runtime: 460640us

Pavel-Durov

#!/home/pd/.pyenv/versions/3.10.13/bin/rebench -c --no-denoise rebench.conf
# Execution Start: 2025-10-10T19:24:40.241431+00:00
# Environment: {"userName":"pd","manualRun":true,"hostName":"bencher16","osType":"Linux","memory":371411361792,"denoise":{},"cpu":"Intel(R) Xeon(R) Platinum 8452Y","clockSpeed":800000000,"software":[{"name":"kernel","version":"#1 SMP PREEMPT_DYNAMIC Debian 6.12.41-1 (2025-08-12)"},{"name":"kernel-release","version":"6.12.41+deb13-amd64"},{"name":"architecture","version":"x86_64"}]}
# Source: {"repoURL":"git@github.com:ykjit/yk-benchmarks.git","branchOrTag":"main","commitId":"d443005a2188aaea3ab9b20de6eb2f380f01ce67","commitMsg":"Merge pull request #32 from vext01/commits\n\nAdd commit hashes to plots, make plots wider\n","authorName":"Laurence Tratt","committerName":"GitHub","authorEmail":"laurie@tratt.net","committerEmail":"noreply@github.com"}
invocation	iteration	value	unit	criterion	benchmark	executor	suite	extraArgs	cores	inputSize	varValue	tag	machine	runId
# benchmark: 0={"nam

Pavel-Durov

#!/bin/bash

export YKD_SERIALISE_COMPILATION=1
export RUST_BACKTRACE=full

# Get the test file from shrinkray (it passes it as an argument)
TEST_FILE="$1"
if [ -z "$TEST_FILE" ]; then
    echo "Error: No test file provided"
    exit 1

Pavel-Durov

#!/bin/bash
# Usage: shrinkray  --timeout 10 --parallelism 50 --no-clang-delta shrinkray_interest.sh ./cstack.minimal.lua

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 <input.lua>"
    exit 1
fi
INPUT="$1"
LUA_EXEC="$SCRIPT_DIR/../src/lua"

Pavel-Durov

# pip install pygame

```python
import pygame

def play_mp3(file_path):
    pygame.mixer.init()
    pygame.mixer.music.load(file_path)
    pygame.mixer.music.play()

Pavel-Durov

import os

import requests

from take_home_test_starter.config import Config

BASE_URL = "https://s3-eu-west-1.amazonaws.com/vito.landcover.global/v3.0.1/2019/"

LATITUDES = ["S40", "S20", "N00", "N20", "N40", "N60", "N80"]

Pavel-Durov

use std::env;

use lrlex::lrlex_mod;
use lrpar::lrpar_mod;

lrlex_mod!("coconut.l"); // brings the lexer for `coconut.l` into scope.
lrpar_mod!("coconut.y"); // brings the Parser for `coconut.y` into scope.

mod ast;
mod instruction;

Pavel-Durov

#[derive(Debug)]
pub enum Node {
    Add { lhs: Box<Node>, rhs: Box<Node> },
    Mul { lhs: Box<Node>, rhs: Box<Node> },
    Number { value: u64 },
}

Pavel-Durov

#[derive(Debug, PartialEq, Clone)]
pub enum Op {
    Add,  // Addition operation
    Mull, // Multiplication operation
    Push { value: u64 }, // Load numeric value onto stack
}