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@sile
sile / README.md
Last active August 18, 2023 05:40
Optunaを使ったRocksDBのパフォーマンスチューニング

概要

  • Optunaというハイパーパラメータ最適化ツールを使って、RocksDB(組み込みDB・KVS)のパフォーマンスチューニングを試してみた際の結果メモ
    • 対象となるワークロードに対して、最適な性能を発揮するパラメータ群を自動で見つけ出すのが目的
  • 結果としては、デフォルトパラメータをそのまま使った場合に比べて、かなり良い性能が得られるパラメータ群を見つけることができた:
    • デフォルトでのベンチマークの所要時間: 372秒
    • Optunaによる最適化後のパラメータでの所要時間: 30秒

モチベーション

@slightfoot
slightfoot / chips.dart
Last active August 8, 2023 09:23
Material Chips Input #HumpdayQandA - https://medium.com/flutter-community/hump-day-q-and-a/home
// MIT License
//
// Copyright (c) 2019 Simon Lightfoot
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
@shunirr
shunirr / criminal_jc.md
Last active February 26, 2024 05:51
女子中学生チケット詐欺事件

criminal_jc

@FreddyPoly
FreddyPoly / terminal
Last active April 9, 2021 20:38
[REACT NATIVE] Get SHA1
Debug SHA1 (root of project)
keytool -J-Duser.language=en -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android
Release SHA1 (/android/app/)
keytool -J-Duser.language=en -list -v -keystore mystore.keystore
@gcchaan
gcchaan / 研修資料まとめ.md
Last active May 7, 2024 02:49
@ishitcno1
ishitcno1 / MultipartRequest.java
Last active April 7, 2019 18:05
volley multipart request, post file image, android.
import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyLog;
import org.apache.http.HttpEntity;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
@fukata
fukata / ramen.2013.md
Last active December 27, 2015 20:29
2013年の年末に福岡に帰省した時に食べたいラーメン店リスト。好みは長浜系。
@fukata
fukata / Makefile
Last active December 24, 2015 06:59
ALL go tests.
# see http://d.hatena.ne.jp/holidays-l/20110823/p1
define MAKETEST
for pkg in $$(for f in $$(find ./adstir -name *_test.go); do echo $${f%/*}; done |sort -u)
do
gom test $$pkg
done
endef
export MAKETEST
test:
@echo "$${MAKETEST}" > /tmp/$$$$ ; $(SHELL) /tmp/$$$$ ; rm -f /tmp/$$$$
@frsyuki
frsyuki / landing_page_ranking_to_signup.sql
Last active December 21, 2015 23:58
-- landing page access ranking analysis using Treasure Data
SELECT first_path, COUNT(1) AS count
FROM (
SELECT TD_SESSIONIZE(time, 3600, host) AS session_id, TD_FIRST(path, time) AS first_path
FROM (
SELECT time, v['host'] as host, v['path'] as path
FROM www_access
DISTRIBUTE BY v['host']
SORT BY v['host'], v['time']
) ss
@drcongo
drcongo / fab deploy_static
Last active May 15, 2018 23:28
A Fabric task to deploy static assets to S3, gzipping the js and css files, and invalidating cache objects on CloudFront. Feel free to point out where it could be improved.
import datetime
import arrow
from fabric.api import *
import boto
from boto.cloudfront import CloudFrontConnection
import os
from datetime import date, timedelta
import gzip
import shutil