mirror of
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681113f1d8
https://github.com/hasura/graphql-engine-mono/pull/2028 Co-authored-by: David Overton <7734777+dmoverton@users.noreply.github.com> GitOrigin-RevId: afbdb8d74bede1e78b054f5582cbf144bba20762
550 lines
25 KiB
Python
Executable File
550 lines
25 KiB
Python
Executable File
#!/usr/bin/env python
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import sys
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import boto3
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import botocore
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import time
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import concurrent.futures
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import io
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import os
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import pathlib
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import queue
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from fabric import Connection
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import patchwork.transfers
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import invoke.exceptions
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import tempfile
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# import paramiko.rsakey
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import json
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from invoke import run as local
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from functools import reduce
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# # DEBUGGING:
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# import logging
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# logging.basicConfig(level=logging.DEBUG)
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#### Environment/arguments: ####
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# We'll upload reports to:
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# f"{RESULTS_S3_BUCKET}/mono-pr-{PR_NUMBER}/{benchmark_set}.json"
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# Result sets can be retreived efficiently with
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# s3.list_objects(Bucket=RESULTS_S3_BUCKET, Prefix=f"{THIS_S3_BUCKET_PREFIX}/")['Contents']
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PR_NUMBER = os.environ['PR_NUMBER']
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THIS_S3_BUCKET_PREFIX = f"mono-pr-{PR_NUMBER}"
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PR_TARGET_BRANCH = os.environ['PR_TARGET_BRANCH']
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# The image file we'll ship to the benchmark runner to test:
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# You can pull get a local image file from docker with e.g.:
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# docker image save -o /tmp/hasura-blah.tar hasura/graphql-engine:latest
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HASURA_DOCKER_IMAGE = os.environ['HASURA_DOCKER_IMAGE']
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if not os.path.isfile(HASURA_DOCKER_IMAGE):
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sys.exit(f"Could not find a docker image file at {HASURA_DOCKER_IMAGE}")
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# For boto3:
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AWS_ACCESS_KEY_ID = os.environ['BENCHMARKS_AWS_ACCESS_KEY_ID']
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AWS_SECRET_ACCESS_KEY = os.environ['BENCHMARKS_AWS_SECRET_ACCESS_KEY']
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#### Globals: ####
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# This key just has privileges to SSH into the benchmarks runner instance.
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# This variable is the entire PEM file (hasura-benchmarks-runner.pem) as a
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# string:
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BENCHMARKS_RUNNER_PRIVATE_KEY = os.environ['BENCHMARKS_RUNNER_PRIVATE_KEY']
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# Keep track of EC2 instances launched in 'run_benchmark_set' so we can
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# clean them up on exit/error (NOTE: 'atexit' is useless for this):
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LAUNCHED_INSTANCES = queue.Queue()
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# Global mutable to allow us to abort restarts when the user initiates a shutdown (e.g. CTRL-C)
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SHUTTING_DOWN = False
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RESULTS_S3_BUCKET = 'hasura-benchmark-results'
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# NOTE: Reports uploaded will be PUBLICLY ACCESSIBLE at:
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def s3_url(filename, bucket_prefix=THIS_S3_BUCKET_PREFIX):
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return f"https://{RESULTS_S3_BUCKET}.s3.us-east-2.amazonaws.com/{bucket_prefix}/{filename}"
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# This short identifier format (e.g. 'mono-pr-1998/chinook') is understood by
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# graphql-bench viewer:
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def s3_short_id(filename, bucket_prefix=THIS_S3_BUCKET_PREFIX):
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return f"{bucket_prefix}/{filename[:-5]}"
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def graphql_bench_url(short_ids):
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return f"https://hasura.github.io/graphql-bench/app/web-app/#{','.join(short_ids)}"
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# We'll write to this, CI will look for it and insert it into the PR comment thread:
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REGRESSION_REPORT_COMMENT_FILENAME = "/tmp/hasura_regression_report_comment.md"
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def main():
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try:
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benchmark_sets_basepath = abs_path("benchmark_sets")
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# Collect the benchmarks we'll run in CI:
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benchmark_sets = [ dir for dir in os.listdir(benchmark_sets_basepath)
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if not pathlib.Path(benchmark_sets_basepath, dir, 'SKIP_CI').is_file()]
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# Theses benchmark sets won't have raw regression numbers displayed
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# (likely because they are unstable for now)
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skip_pr_report_names = [ dir for dir in os.listdir(benchmark_sets_basepath)
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if pathlib.Path(benchmark_sets_basepath, dir, 'SKIP_PR_REPORT').is_file()]
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# Start all the instances we need and run benchmarks in parallel
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# NOTE: ProcessPoolExecutor doesn't work with shared queue
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with concurrent.futures.ThreadPoolExecutor() as executor:
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bench_result = executor.map(run_benchmark_set, benchmark_sets)
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# This just surfaces any exceptions from concurrent.futures; we might
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# do something else with these later:
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# http://docs.pyinvoke.org/en/latest/api/runners.html#invoke.runners.Result
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print(list(bench_result))
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report, merge_base_pr = generate_regression_report()
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pretty_print_regression_report_github_comment(
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report,
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skip_pr_report_names,
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merge_base_pr,
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REGRESSION_REPORT_COMMENT_FILENAME
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)
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say("Success!")
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# NOTE: without this 'except', any exceptions are silently swallowed... ugh
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except Exception as e:
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raise
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finally:
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global SHUTTING_DOWN
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SHUTTING_DOWN = True
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print("Cleaning up resources and shutting down:")
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for i in list(LAUNCHED_INSTANCES.queue):
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print(f" * {i.instance_id}")
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# NOTE: this is idempotent, so okay to run on success
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i.terminate()
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print("")
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sys.exit()
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def new_boto_session():
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# For other auth options:
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# https://boto3.amazonaws.com/v1/documentation/api/latest/guide/credentials.html
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# NOTE: we must start a new 'Session' per thread:
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return boto3.Session(
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aws_access_key_id=AWS_ACCESS_KEY_ID,
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aws_secret_access_key=AWS_SECRET_ACCESS_KEY
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)
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# Start an EC2 instance that will run 'benchmark_set'. use_spot indicates
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# whether we should try to start spot instances. If use_spot=True we'll retry
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# once in case this fails, with an on-demand instance instead
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def run_benchmark_set(benchmark_set, use_spot=True):
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# Prefer this instead of 'print()' so we can follow along with concurrent execution:
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def say(s):
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print(f"*** \033[92m {benchmark_set}: {s} \033[0m")
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def warn(s):
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print(f"*** \033[93m {benchmark_set}: {s} \033[0m")
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boto3_session = new_boto_session()
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# boto3_session = boto3.Session(profile_name='benchmarks')
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ec2_client = boto3_session.client('ec2', region_name='us-east-2')
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ec2 = boto3_session.resource('ec2', region_name='us-east-2')
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s3 = boto3_session.client('s3')
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# Get benchmark-runner AMI (see README_AMI.md)
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runner_images_dirty = ec2_client.describe_images(Filters=[{'Name':'tag:Name', 'Values':['hasura-benchmarks-runner']}])['Images']
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if len(runner_images_dirty) > 1:
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sys.exit("More than one instance tagged 'hasura-benchmarks-runner'; please delete tag from old image")
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elif len(runner_images_dirty) == 0:
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sys.exit("The 'hasura-benchmarks-runner' image needs to be copied to this region.")
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runner_image_id = runner_images_dirty[0]['ImageId']
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# We can and do run into capacity issues. Try our best to find a region
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# with spot availability (much cheaper), else try on-demand price
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spot = {
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'MarketType': 'spot',
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'SpotOptions': {
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# A bit over the on-demand price
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# NOTE: at time of this writing spot price has been very stable around $0.35/hr
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'MaxPrice': '1.80',
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'SpotInstanceType': 'one-time',
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'InstanceInterruptionBehavior': 'terminate'
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}
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}
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# Regions in which we can run benchmarks, in order (approximately) from
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# cheap to more expensive. With c4.8xlarge we run into capacity issues from
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# time to time.
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# NOTE: if you want to add a new region here you'll need to copy the
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# hasura-benchmarks-runner AMI, security group, and keypair to that region
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# also.
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ok_regions = [
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"us-east-2",
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"us-west-2",
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"ap-south-1",
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"ca-central-1",
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"eu-west-2",
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"eu-west-1",
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]
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# the sequence of spot/on-demand requests we'll make:
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market_types = [spot, {}, {}, {}, "FAIL"] if use_spot else [{}, {}, {}, "FAIL"]
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def launch_instance():
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# We'll try on-demand instances three times, hoping capacity gets added, before giving up
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for market_type in market_types:
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for region in ok_regions:
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if market_type == "FAIL":
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sys.exit("All regions are out of capacity! We'll just need to wait and try again, sorry.")
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market_type_str = "on-demand" if market_type == {} else "spot"
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say(f"Trying to launch in {region} as {market_type_str}")
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try:
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# Launch beefy ec2 instances that will run the actual benchmarks:
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instance = ec2.create_instances(
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ImageId=runner_image_id,
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MinCount=1, MaxCount=1,
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# NOTE: benchmarks are tuned very specifically to this instance type and
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# the other settings here (see bench.hs):
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InstanceType='c4.8xlarge',
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KeyName='hasura-benchmarks-runner',
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InstanceInitiatedShutdownBehavior='terminate',
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# Disable hyperthreading:
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CpuOptions={
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'CoreCount': 18,
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'ThreadsPerCore': 1
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},
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# AFAICT this is always true for c4 instances and comes at no additional
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# charge, but the console shows 'false' if we don't set this...
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EbsOptimized=True,
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InstanceMarketOptions=market_type,
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TagSpecifications=[{
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'ResourceType': 'instance',
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'Tags': [
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# Informational. This will show up in console:
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{'Key': 'Name',
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'Value': 'hasura-benchmarks-runner-'+benchmark_set
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},
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# "Owner" here is an arbitrary name; this tag allows us to define an
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# IAM policy that effectively restricts hasura-benchmarks-runner to
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# only terminating instances that it has started (here):
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{'Key': 'Owner',
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'Value': 'hasura-benchmarks-runner'
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}
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]
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}],
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SecurityGroupIds=[ 'hasura-benchmarks-runner' ]
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)[0]
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except botocore.exceptions.ClientError as error:
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if error.response['Error']['Code'] == 'InsufficientInstanceCapacity':
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say(f"Warning, got InsufficientInstanceCapacity in region {region}. Trying the next one")
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if region == ok_regions[-1]:
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say('Waiting a bit, hoping capacity gets added before going through regions again')
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time.sleep(20)
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continue
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else:
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raise
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# Above succeeded, presumably, so we can return...
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# Ensure we clean up instances even on error:
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LAUNCHED_INSTANCES.put(instance)
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instance.wait_until_running()
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instance.load()
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# NOTE: at this point we may still not be able to SSH in
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return instance
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try:
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# for reasons of ergonomics and compatibility on CI, we want to supply the SSH key as an environment variable. Unfortunately I'm not sure how to do that without writing to a file
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with tempfile.NamedTemporaryFile(mode='w+') as key_file:
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key_file.write(BENCHMARKS_RUNNER_PRIVATE_KEY)
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key_file.seek(0)
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instance = launch_instance()
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c = Connection(
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instance.public_dns_name,
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user="ubuntu",
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connect_timeout=10,
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connect_kwargs={
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# "key_filename": "
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"key_filename": key_file.name,
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## NOTE: I couldn't figure out how to take the key from a string:
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## https://github.com/paramiko/paramiko/issues/1866
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# "pkey": paramiko.rsakey.RSAKey.from_private_key(io.StringIO(BENCHMARKS_AWS_PRIVATE_KEY)),
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}
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)
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# It can take some time for our EC2 instances to become available, so
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# we need to retry SSH connections for a while:
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say("Waiting for SSH to come up")
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conn_attempts = range(0,20)
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for n in conn_attempts:
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try:
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c.run("whoami", hide='out')
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except:
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if n == conn_attempts[-1]:
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raise
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else:
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time.sleep(1)
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continue
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break
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# In case our heroic exception handling and cleanup attempts here fail,
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# make sure this instance shuts down (and is terminated, per
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# InstanceInitiatedShutdownBehavior) after X minutes:
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c.sudo('shutdown -P +20 "Oops, we failed to clean up this instance; terminating now"')
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say("Uploading and loading docker image under test")
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patchwork.transfers.rsync(c, HASURA_DOCKER_IMAGE, '/tmp/hasura_image.tar', rsync_opts="--quiet")
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hasura_docker_image_name = c.run(
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"docker load -i /tmp/hasura_image.tar | grep '^Loaded image: ' | sed 's/Loaded image: //g'",
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pty=True
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).stdout.strip()
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say(f"Running benchmarks for: {hasura_docker_image_name}")
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# Upload the benchmarks directory to remote (though we only care about 'benchmark_set')
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patchwork.transfers.rsync(c, abs_path('../benchmarks'), '/tmp', exclude='venv', rsync_opts="--quiet")
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with c.cd("/tmp/benchmarks"):
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# We'll sleep for the 'huge_schema' case to allow memory to settle,
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# since measuring idle residency to support the schema is the main
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# point of this test. Since 'chinook' takes much longer we don't
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# lose any wallclock CI time by waiting here
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# TODO the fact that we're mentioning a specific benchmark set here is a wart:
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post_setup_sleep = 90 if benchmark_set == 'huge_schema' else 0
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# NOTE: it seems like K6 is what requires pty here:
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# NOTE: add hide='both' here if we decide to suppress output
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bench_result = c.run(f"./bench.sh {benchmark_set} {hasura_docker_image_name} {post_setup_sleep}", pty=True)
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with tempfile.TemporaryDirectory("-hasura-benchmarks") as tmp:
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filename = f"{benchmark_set}.json"
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say(f"Fetching results and uploading to S3. Available at: {s3_url(filename)}")
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local_path = os.path.join(tmp, filename)
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c.get(f"/tmp/benchmarks/benchmark_sets/{benchmark_set}/report.json", local=local_path)
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s3.upload_file(
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local_path, RESULTS_S3_BUCKET, f"{THIS_S3_BUCKET_PREFIX}/{filename}",
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ExtraArgs={'ACL': 'public-read'}
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)
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# Terminate ASAP, to save money, even though we also ensure cleanup in main():
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say("Success! Shutting down")
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instance.terminate()
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return bench_result
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# If AWS evicted our spot instance (probably), try again with on-demand
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except invoke.exceptions.UnexpectedExit:
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if SHUTTING_DOWN:
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warn("interrupted, exiting")
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return None
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if use_spot:
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warn("Dang, it looks like our spot instance was evicted! Retrying with on-demand")
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run_benchmark_set(benchmark_set, use_spot=False)
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else:
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raise
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# Create a regression report between the benchmarks we just ran (for PR_NUMBER;
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# assumes 'run_benchmark_set' has been run for all)
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#
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# NOTE: this is a little inefficient (since we fetch from S3 the report we just
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# generated) in the service of simplicity and so that this function might be
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# re-used if this becomes a proper fabfile
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def generate_regression_report():
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boto3_session = new_boto_session()
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s3 = boto3_session.client('s3')
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def fetch_report_json(prefix, bench_name):
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tmp = io.BytesIO()
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s3.download_fileobj(RESULTS_S3_BUCKET, f"{prefix}/{bench_name}", tmp)
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tmp.seek(0)
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return json.load(tmp)
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# Find the PR number of the nearest parent commit, to compare against.
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# NOTE: we need a somewhat long history here, because there may be a long
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# string of e.g. console commits which never resulted in a benchmark run in CI:
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merge_base_candidates = (
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local(f"utils/pr-merge-bases.sh {PR_TARGET_BRANCH} 30", hide='stdout')
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.stdout
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.splitlines()
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)
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# Find the most recent PR in merge base with some benchmark results:
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for pr_num in merge_base_candidates:
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if 'Contents' in s3.list_objects(Bucket=RESULTS_S3_BUCKET, Prefix=f"mono-pr-{pr_num}/"):
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merge_base_pr = pr_num
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break
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try:
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if merge_base_pr != merge_base_candidates[0]:
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warn("Showing regression report against older PR in merge base!")
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say(f"Comparing performance to changes from https://github.com/hasura/graphql-engine-mono/pull/{merge_base_pr}")
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except UnboundLocalError:
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warn(f"Could not find a commit in merge base with associated benchmarks! (among {merge_base_candidates}")
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warn(f"Exiting")
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raise
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# We'll accumulate a structure like this, with all non-empty maps:
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# :: Map BenchSetName (MemInUsePctChg, LiveBytesPctChg, [ (BenchmarkName, Map Metric PctChg) ]
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results = {}
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# For each benchmark set we uploaded, for PR_NUMBER...
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for o in s3.list_objects(Bucket=RESULTS_S3_BUCKET, Prefix=f"{THIS_S3_BUCKET_PREFIX}/")['Contents']:
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this_prefix, benchmark_set_name = o['Key'].split('/')
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this_report = fetch_report_json(this_prefix, benchmark_set_name)
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try:
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merge_base_report = fetch_report_json(f"mono-pr-{merge_base_pr}", benchmark_set_name)
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except botocore.exceptions.ClientError:
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# This will happen, e.g. when a new benchmark set is added in this change set
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warn(f"No results for {benchmark_set_name} found for PR #{merge_base_pr}. Skipping")
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continue
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benchmark_set_results = []
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# So we can look up by benchmark name:
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merge_base_report_dict = {}
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for bench in merge_base_report:
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merge_base_report_dict[bench['name']] = bench
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# Record residency stats before any benchmarks have run, to present as
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# a baseline for serving this particular schema:
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def mem_regression(ix, stat):
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this_bytes = this_report[ix]["extended_hasura_checks"][stat]
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merge_base_bytes = merge_base_report[ix]["extended_hasura_checks"][stat]
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return pct_change(merge_base_bytes, this_bytes)
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mem_in_use_before_diff = mem_regression(0, "mem_in_use_bytes_before")
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live_bytes_before_diff = mem_regression(0, "live_bytes_before")
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# ...and also the live_bytes after, which lets us see e.g. whether a
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# memory improvement was just creation of thunks that get evaluated
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# when we do actual work:
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live_bytes_after_diff = mem_regression(-1, "live_bytes_after")
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mem_in_use_after_diff = mem_regression(-1, "mem_in_use_bytes_after")
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# ^^^ NOTE: ideally we'd want to pause before collecting mem_in_use
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# here too I guess, to allow RTS to reclaim
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for this_bench in this_report:
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# this_bench['requests']['count'] # TODO use this to normalize allocations
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name = this_bench['name']
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try:
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merge_base_bench = merge_base_report_dict[name]
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except KeyError:
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warn(f"Skipping '{name}' which is not found in the old report")
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continue
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# We also want to skip any metrics not present in both reports,
|
|
# since we might decide to add or need to remove some:
|
|
metrics = {}
|
|
try:
|
|
metrics['bytes_alloc_per_req'] = pct_change(
|
|
merge_base_bench["extended_hasura_checks"]["bytes_allocated_per_request"],
|
|
this_bench[ "extended_hasura_checks"]["bytes_allocated_per_request"]
|
|
)
|
|
except KeyError:
|
|
continue
|
|
# NOTE: we decided to omit higher-percentile latencies here since
|
|
# they are noisy (which might lead to people ignoring benchmarks)
|
|
# and there are better ways to view these tail latencies in the works.
|
|
# for m in ['min', 'p50', 'p90', 'p97_5']:
|
|
for m in ['min', 'p50']:
|
|
try:
|
|
this_hist = this_bench['histogram']['json']
|
|
merge_base_hist = merge_base_bench['histogram']['json']
|
|
|
|
# Store percent difference from this to merge base:
|
|
metrics[m] = pct_change(merge_base_hist[m], this_hist[m])
|
|
|
|
# We only expect ZeroDivisionError for old reports, before we
|
|
# fixed precision issue in graphql-bench:
|
|
except (KeyError, ZeroDivisionError):
|
|
continue
|
|
|
|
if metrics == {}:
|
|
# again, this should only happen with old reports with zeros
|
|
warn(f"Skipping {name} since metrics are empty")
|
|
continue
|
|
benchmark_set_results.append((name, metrics))
|
|
|
|
results[benchmark_set_name] = (mem_in_use_before_diff, live_bytes_before_diff, mem_in_use_after_diff, live_bytes_after_diff, benchmark_set_results)
|
|
|
|
return results, merge_base_pr
|
|
|
|
# We (ab)use githubs syntax highlighting for displaying the regression report
|
|
# table as a github comment, that can be easily scanned
|
|
def pretty_print_regression_report_github_comment(results, skip_pr_report_names, merge_base_pr, output_filename):
|
|
f = open(output_filename, "w")
|
|
def out(s): f.write(s+"\n")
|
|
|
|
out(f"## Benchmark Results") # NOTE: We use this header to identify benchmark reports in `hide-benchmark-reports.sh`
|
|
out(f"")
|
|
out((f"The regression report below shows, for each benchmark, the **percent change** for "
|
|
f"different metrics, between the merge base (the changes from **PR {merge_base_pr}**) and "
|
|
# NOTE: we don't use #{merge_base_pr} because we want to avoid backlinks from the target PRs
|
|
f"this PR. For advice on interpreting benchmarks, please see [benchmarks/README.md]"
|
|
f"(https://github.com/hasura/graphql-engine-mono/blob/main/server/benchmarks/README.md)."))
|
|
out(f"")
|
|
out(f"More significant regressions or improvements will be colored with `#b31d28` or `#22863a`, respectively.")
|
|
out(f"")
|
|
out(f"You can view graphs of the full reports here:")
|
|
for benchmark_set_name, _ in results.items():
|
|
these_id = s3_short_id(benchmark_set_name)
|
|
base_id = s3_short_id(benchmark_set_name, 'mono-pr-'+merge_base_pr)
|
|
out(f"- **{benchmark_set_name}**: "
|
|
f"[:bar_chart: these changes]({graphql_bench_url([these_id])})... "
|
|
f"[:bar_chart: merge base]({graphql_bench_url([base_id])})... "
|
|
f"[:bar_chart: both compared]({graphql_bench_url([these_id, base_id])})")
|
|
out(f"")
|
|
out(f"<details open><summary>Click here for a detailed report.</summary>")
|
|
out(f"")
|
|
|
|
# Return what should be the first few chars of the line, which will detemine its styling:
|
|
def col(val=None):
|
|
if val == None: return "# " # GRAY
|
|
elif abs(val) <= 2.0: return "# " # GRAY
|
|
elif abs(val) <= 3.5: return "* " # NORMAL
|
|
# ^^^ So far variation in min, bytes, and median seem to stay within this range.
|
|
elif 0 < val <= 15.0: return "- " # RED
|
|
elif 0 < val <= 25.0: return "-- " # RED
|
|
elif 0 < val: return "--- " # RED
|
|
elif -15.0 <= val < 0: return "+ " # GREEN
|
|
elif -25.0 <= val < 0: return "++ " # GREEN
|
|
else: return "+++ " # GREEN
|
|
|
|
out( f"``` diff ") # START DIFF SYNTAX
|
|
for benchmark_set_name, (mem_in_use_before_diff, live_bytes_before_diff, mem_in_use_after_diff, live_bytes_after_diff, benchmarks) in results.items():
|
|
if benchmark_set_name[:-5] in skip_pr_report_names: continue
|
|
l0 = live_bytes_before_diff
|
|
l1 = live_bytes_after_diff
|
|
u0 = mem_in_use_before_diff
|
|
u1 = mem_in_use_after_diff
|
|
out( f"{col( )} ┌{'─'*(len(benchmark_set_name)+4)}┐")
|
|
out( f"{col( )} │ {benchmark_set_name} │" )
|
|
out( f"{col( )} └{'─'*(len(benchmark_set_name)+4)}┘")
|
|
out( f"{col( )} ")
|
|
out( f"{col( )} ᐉ Memory Residency (RTS-reported):")
|
|
out( f"{col(l0)} {'live_bytes':<25}: {l0:>6.1f} (BEFORE benchmarks ran; baseline for schema)")
|
|
out( f"{col(l1)} {'live_bytes':<25}: {l1:>6.1f} (AFTER benchmarks ran)")
|
|
out( f"{col(u0)} {'mem_in_use':<25}: {u0:>6.1f} (BEFORE benchmarks ran; baseline for schema)")
|
|
out( f"{col(u1)} {'mem_in_use':<25}: {u1:>6.1f} (AFTER benchmarks ran)")
|
|
for bench_name, metrics in benchmarks:
|
|
out( f"{col( )} ")
|
|
out( f"{col( )} ᐅ {bench_name.replace('-k6-custom','').replace('_',' ')}:")
|
|
for metric_name, d in metrics.items():
|
|
out(f"{col(d)} {metric_name:<25}: {d:>6.1f}")
|
|
out( f"{col( )} ")
|
|
out( f"``` ") # END DIFF SYNTAX
|
|
out(f"</details>")
|
|
|
|
say(f"Wrote github comment to {REGRESSION_REPORT_COMMENT_FILENAME}")
|
|
f.close()
|
|
|
|
|
|
def pct_change(previous, current):
|
|
return ((float(current)-previous)/previous)*100
|
|
|
|
# return an absolute path, from one relative to this file
|
|
def abs_path(p):
|
|
return os.path.join(os.path.dirname(__file__), p)
|
|
|
|
# Traverse a dictionary using tuple of keys as path
|
|
def get_path(d, path):
|
|
return reduce(dict.get, path, d)
|
|
|
|
def say(s):
|
|
print(f"***\033[92m {s} \033[0m")
|
|
def warn(s):
|
|
print(f"***\033[93m {s} \033[0m")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|