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I/O is no longer the bottleneck
November 2022 When interviewing programmers, I often ask them to code a simple program to count word frequencies in a text file. It’s a good problem that tests a bunch of skills, and with some follow-up questions, allows you to go surprisingly deep. One of the follow-up questions I ask is, “What’s the performance bottleneck in your program?†Most people say something like “reading from the input f
SUZURI ã®ã‚»ãƒ¼ãƒ«ã¨ãƒ†ãƒ¬ãƒ“ CM を乗り越ãˆã‚‹ãŸã‚ã«è² è·è©¦é¨“を実施ã—ã¾ã—㟠- Pepabo Tech Portal
ã“ã‚“ã«ã¡ã¯ã€‚ takutaka ã¨ç”³ã—ã¾ã™ã€‚最近ã¯æš‘ãã¦å¤§å¤‰ã§ã™ã。熱ä¸ç—‡ã«ã¯æ°—ã‚’ã¤ã‘ã¦éŽã”ã—ã¾ã—ょã†ã€‚ 最近ã€SUZURI ã§è² è·è©¦é¨“ã‚’ã‚„ã£ãŸã®ã§ã€ãã®ã“ã¨ã«ã¤ã„ã¦æ›¸ã„ã¦ã„ãã¾ã™ã€‚ æ¦‚è¦ Tシャツセールを開催ã—ã€ãã®æœŸé–“ã«åˆã‚ã›ã¦ãƒ†ãƒ¬ãƒ“CMã‚’æ”¾æ˜ ã™ã‚‹ã“ã¨ãŒæ±ºã¾ã‚Šã¾ã—ãŸã€‚ アプリケーションやビジãƒã‚¹ãªã©ã€å„é ˜åŸŸã§é”æˆã™ã¹ã課題ãŒç™ºç”Ÿã™ã‚‹ä¸ã€ã‚¤ãƒ³ãƒ•ãƒ©é ˜åŸŸã§ã¯ã€Œæœ€å¤§é™ã®åŠªåŠ›ã‚’ã—ã¦ã‚»ãƒ¼ãƒ«æœŸé–“ä¸ã®ãƒ€ã‚¦ãƒ³ã‚’防ãã€ã¨ã„ã†ãƒŸãƒƒã‚·ãƒ§ãƒ³ãŒä¸Žãˆã‚‰ã‚Œã¾ã—ãŸã€‚ パフォーマンスãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã‚’ã‚„ã‚ã†ã€ã‚¤ãƒ³ãƒ•ãƒ©ãƒªã‚½ãƒ¼ã‚¹ã‚’増強ã—よã†ã€æ§˜ã€…ãªå¯¾å¿œãŒãªã•ã‚Œã‚‹ä¸ã€ãã®ã²ã¨ã¤ã¨ã—ã¦ã€è² è·è©¦é¨“を実施ã—ã¦å„対ç–ã®åŠ¹æžœã‚’検証ã™ã‚‹ã“ã¨ã«ãªã‚Šã¾ã—ãŸã€‚ 僕ãŒä¸»æ‹…当ã¨ã—ã¦å–り組むã“ã¨ã«ãªã£ãŸã®ã§ã™ãŒã€å•é¡ŒãŒä¸€ã¤ã‚ã‚Šã¾ã—ãŸã€‚ãã‚Œã¯ã€åƒ•ãŒã¾ã¨ã‚‚ã«è² è·è©¦é¨“ã«å–り組んã 経験ãŒã¾ã£ãŸããªã‹ã£ãŸã¨ã„ã†ã“ã¨ã§ã—ãŸã€‚ 今ã¾ã§è² è·è©¦é¨“ã‚’ã‚„ã£ãŸã“ã¨ãŒãªã„エンジニ
Amazon Linux 2022 Benchmarks - Offers Competitive Performance Against Ubuntu, CentOS - Phoronix
Amazon Linux 2022 Benchmarks - Offers Competitive Performance Against Ubuntu, CentOS Written by Michael Larabel in Operating Systems on 29 November 2021 at 06:00 AM EST. Page 1 of 3. 4 Comments. Last week Amazon Web Services released Amazon Linux 2022 in preview form and since then I've been trying out their new cloud-optimized Linux distribution. It's been working out well on AWS (to no surprise)
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GitHub - six-ddc/plow: A high-performance HTTP benchmarking tool that includes a real-time web UI and terminal display
Plow is an HTTP(S) benchmarking tool, written in Golang. It uses excellent fasthttp instead of Go's default net/http due to its lightning fast performance. Plow runs at a specified connections(option -c) concurrently and real-time records a summary statistics, histogram of execution time and calculates percentiles to display on Web UI and terminal. It can run for a set duration( option -d), for a
CPUベンãƒãƒžãƒ¼ã‚¯ã®æŽ¡å–方法 | 外é“父ã®åŒ
CPUã®æ€§èƒ½ã‚’調ã¹ã‚‹æ–¹æ³•ã‚’紹介ã€ã¨ã„ã†ã‹ãƒ¡ãƒ¢ã§ã™ã€‚ 次ã®è¨˜äº‹ãŒé•·ããªã‚Šã™ãŽãªã„よã†ã«åˆ†å‰²ã—ãŸã‚„ã¤ã€‚ CPU Benchmark Charts 最も手軽ã«CPU性能を調ã¹ã‚‰ã‚Œã‚‹ã®ãŒã€ã“ã®ã‚µã‚¤ãƒˆã§ã™ã€‚ PassMark Software – CPU Benchmark Charts ç§ã®å ´åˆã¯ã€ã‚µã‚¤ãƒ‰ãƒãƒ¼ã®ã€ŽSingle Threadã€ã‚’眺ã‚ãŸã‚Šã€ãƒ˜ãƒƒãƒ€ã®æ¤œç´¢ã‹ã‚‰åž‹ç•ªã®ãƒšãƒ¼ã‚¸ã«è¡Œã£ã¦ã€Single Thread ã®å€¤ã‚’確èªã—ãŸã‚Šã—ã¾ã™ã€‚ マルãƒã‚³ã‚¢ã§ã®ç·åˆåŠ›ã‚‚大事ãªã‚“ã§ã™ãŒã€å€‹äººçš„ã«ã¯ Single ã§ã®æ€§èƒ½ãŒãƒ¬ã‚¹ãƒãƒ³ã‚¹ã‚¿ã‚¤ãƒ ãªã©ã«ç›´çµã™ã‚‹ã®ã§ã€é‡è¦è¦–ã—ã¦ã„ã¾ã™ã€‚ CPUæƒ…å ± /proc/cpuinfo Linux ãªã‚‰ã€ã“ã‚Œã§å¤§ä½“ã®æƒ…å ±ã‚’ç¢ºèªã§ãã¾ã™ã€‚ $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family
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Python ã‚’ Go ã«æ›¸ãæ›ãˆã‚‹ã¨ã©ã‚Œãらã„速ããªã‚‹ï¼Ÿ 7ã¤ã®è¨€èªžã§ Dijkstra ã®å®Ÿè¡Œé€Ÿåº¦ã‚’比較 - Qiita
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今年9月㫠GitHub Action v2 ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã—ãŸï¼ŽGitHub Action 㯠GitHub ãŒæä¾›ã™ã‚‹ CI/CD サービスã§ã™ï¼Ž æ—¢å˜ã®ã‚µãƒ¼ãƒ“スã¨å¤§ããé•ã†ç‚¹ã¯ï¼Œå‡¦ç†ã‚’汎用的㫠Action ã¨ã—ã¦åˆ‡ã‚Šå‡ºã—ã¦å†åˆ©ç”¨ã§ãã‚‹ã“ã¨ã§ã™ï¼Ž 例ãˆã°ï¼ŒGitHub ã‹ã‚‰ã®ãƒªãƒã‚¸ãƒˆãƒªã®ã‚¯ãƒãƒ¼ãƒ³ actions/fetch ã‚„ Node.js ã®ã‚»ãƒƒãƒˆã‚¢ãƒƒãƒ— actions/setup-node ãªã©ã®åŸºæœ¬çš„ãªå®Ÿè¡Œã‚¹ãƒ†ãƒƒãƒ—ã‚‚ Action ã¨ã—ã¦å®Ÿè£…ã•ã‚Œã¦ã„ã¾ã™ï¼Ž 今回ã¯ã“ã® GitHub Action を利用ã—ã¦ï¼Œå‰ã€…ã‹ã‚‰ã‚ã‚‹ã¨è‰¯ã„ãªã¨æ€ã£ã¦ã„ãŸãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã‚’継続的ã«å–ã‚‹ãŸã‚ã® Action ã‚’ã¤ãã‚Šã¾ã—ãŸï¼Ž github.com github-action-benchmark ã¯ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã®å®Ÿè¡Œã®å‡ºåŠ›ã‹ã‚‰ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯çµæžœã‚’抽出ã—，GitHub pages ã®ãƒ–ランãƒã« JSO
Linux benchmark scripts and tools | LinuxBlog.io
September 29, 2025 by Hayden James, in Blog Linux This list of Linux benchmark scripts and tools should prove helpful for quick performance checks of CPU, storage, memory, and network on Linux servers and VPS. Check each script before running it from the command line. Most of these scripts will benchmark the CPU, memory, storage, and network. In most cases, the CPU model, frequency, and number of
JdbcRunner 1.3ãƒªãƒªãƒ¼ã‚¹ï¼ˆãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹è² è·ãƒ†ã‚¹ãƒˆãƒ„ール） - SH2ã®æ—¥è¨˜
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ミドルウェア性能検証ã®æ‰‹å¼•ã | 外é“父ã®åŒ
インフラエンジニアã®å¤šåˆ†ã€è¯å½¢ã®ãŠä»•äº‹ã®ï¼‘ã¤ã§ã‚るミドルウェアã®æ€§èƒ½æ¤œè¨¼ã‚’久々ã«ã‚¬ãƒƒãƒ„リやる機会ãŒã‚ã‚Šã¾ã—ãŸã®ã§ã€æ¤œè¨¼ä½œæ¥ã®åŸºæœ¬çš„ãªé …ç›®ã«ã¤ã„ã¦åˆå¿ƒã‹ã‚‰æŒ¯ã‚Šè¿”ã£ã¦ãŠããŸã„ã¨æ€ã„ã¾ã™ã€‚èªã¿ã‚„ã™ã•åº¦å¤–視ã®è©°ã‚è¾¼ã¿è¨˜äº‹æ³¨æ„è¦å ±ã§ã™ã€‚ 世ã®ä¸ã€é›‘ãªæ¤œè¨¼çµæžœã‚‚ã¡ã‚‡ã„ã¡ã‚‡ã„散乱ã—ã¦ã„ã¦ã€ç§è‡ªèº«ã‚‚ãã†ãªã‚‰ãªã„よã†æ³¨æ„を払ã£ã¦ã„ã‚‹ã‚ã‘ã§ã™ãŒã€ã‚¬ãƒã§ã‚„ã‚‹ã¨æ°—ã‚’ã¤ã‘ã‚‹é …ç›®ãŒå¤šãã¦ã€è‡ªåˆ†ã§å¿˜ã‚ŒãŸã‚Šã—ãªã„よã†ã«ã¨ã€èª°ã‹ã«ã‚„ã£ã¦ã‚‚らã„ãŸã„時ã«åŸºæœ¬ã‚’抑ãˆã¦ã‹ã‚‰å–り掛ã‹ã£ã¦ã‚‚らã†ãŸã‚ã«ã€å½¢ã«ã—ã¦æ®‹ã—ã¦ãŠã“ã†ã¨æ€ã£ãŸæ¬¡ç¬¬ã§ã‚ã‚Šã¾ã™ã€‚ 目次 ãªãœæ€§èƒ½æ¤œè¨¼ã‚’ã™ã‚‹ã®ã‹ 環境ã®æº–å‚™ インスタンスã®ç”¨æ„ クライアントã®ç”¨æ„ サーãƒãƒ¼ã®ç”¨æ„ ボトルãƒãƒƒã‚¯ã«ãªã‚Šã†ã‚‹é …ç›® CPU Utilization Memory Network Bandwidth Disk Bandwidth Disk IOPS Disk Latency Disk
GitHub - goadapp/goad: Goad is an AWS Lambda powered, highly distributed, load testing tool
https://goad.io Goad is an AWS Lambda powered, highly distributed, load testing tool built in Go for the 2016 Gopher Gala. Goad allows you to load test your websites from all over the world whilst costing you the tiniest fractions of a penny by using AWS Lambda in multiple regions simultaneously. You can run Goad from your machine using your own AWS credentials. Goad will automatically create the
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2016å¹´ã®OSS圧縮ツールé¸æŠžã‚«ã‚¿ãƒã‚° - Qiita
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PostgreSQL and MySQL: Millions of Queries per Second
This blog compares how PostgreSQL and MySQL handle millions of queries per second. Anastasia: Can open source databases cope with millions of queries per second? Many open source advocates would answer “yes.†However, assertions aren’t enough for well-grounded proof. That’s why in this blog post, we share the benchmark testing results from Alexander Korotkov (CEO of Development, Postgres Professio
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Goã¨ã‚³ãƒ³ãƒ†ãƒŠã§ä½œã‚‹Webアプリケーションベンãƒãƒžãƒ¼ã‚«ãƒ¼ / Benchmarker built with Go and Container
Troubleshooting MySQL Concurrency Issues with Load Testing Tools Webinar: Q & A
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