[B! performance] mizdraã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

mizdra id:mizdra

performanceã«é–¢ã™ã‚‹mizdraã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (212)

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ã€ŒRailsã‚¢ãƒ—ãƒªã¯IO-boundã§ã‚ã‚‹ã€ã¨ã„ã†ç¥žè©±ã«ã¤ã„ã¦è€ƒãˆã‚‹ï¼ˆç¿»è¨³ï¼‰ï½œTechRacho by BPSæ ªå¼ä¼šç¤¾
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mizdra 2025/02/21
YJIT ã«ã‚ˆã‚‹ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®å‘ä¸Šã‹ã‚‰ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã® I/O å‡¦ç†ã®å‰²åˆã‚’æŽ¨æ¸¬ã™ã‚‹è©±ã€CPU æž¯æ¸‡ãŒ I/O å¾…ã¡æ™‚é–“ãŒé•·ã„ã¨è¦‹é–“é•ãˆã‚‹ç†ç”±ã®è©±ãŒé¢ç™½ã‹ã£ãŸ

rails

ruby

performance
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ãªãœã‚ãªãŸã®ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆã¯é…ã„ã®ã‹
è‡ªå·±ç´¹ä»‹ https://x.com/mizchi Node.js ã¨ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã®å°‚é–€å®¶ çµŒæ´ ã‚²ãƒ¼ãƒ ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆé–‹ç™º Electron ã‚¢ãƒ—ãƒªé–‹ç™º ã‚µãƒ¼ãƒ‰ãƒ‘ãƒ¼ãƒ†ã‚£ã‚¹ã‚¯ãƒªãƒ—ãƒˆ ãƒ•ãƒªãƒ¼ãƒ©ãƒ³ã‚¹(2å›žç›®) ç¾åœ¨: 1ãƒ¶æœˆã§ãƒ‘ãƒ•ã‚©ãƒãƒ¥ã™ã‚‹å‚å…µ Core Web Vitals CI/CD ä»Šæ—¥ã®ã‚¹ã‚³ãƒ¼ãƒ— è©±ã™ã“ã¨ ä¸»ã«ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰/ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³è¦–ç‚¹ã§ã®è¨ˆæ¸¬ ã¨ãã«ã‚¨ãƒ³ãƒ‰ãƒ¦ãƒ¼ã‚¶ãƒ¼ã‹ã‚‰è¦‹ãŸã‚¦ã‚§ãƒ–ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ä½“é¨“ è©±ã•ãªã„ã“ã¨ å„ã‚¯ãƒ©ã‚¦ãƒ‰ã‚„DBã«ç‰¹åŒ–ã—ãŸãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚° çµæžœã¨ã—ã¦è¦³æ¸¬ã§ãã‚‹ãŒã€æœ€åˆã‹ã‚‰ã‚¿ãƒ¼ã‚²ãƒƒãƒˆã«ã¯ã—ãªã„ ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹å‚å…µã‚’å§‹ã‚ãŸçµŒç·¯ å‰è·ã§ã‚µãƒ¼ãƒ‰ãƒ‘ãƒ¼ãƒ†ã‚£ãŒã‚µã‚¤ãƒˆå…¨ä½“ã«ä¸Žãˆã‚‹å½±éŸ¿(CWV)ã«ã¤ã„ã¦èª¿æŸ» ã¨ã«ã‹ãã„ã‚ã‚“ãªã‚µã‚¤ãƒˆã‚’å¤–éƒ¨ã‹ã‚‰è¨ˆæ¸¬ çœŸã®å•é¡Œã‚’ç‰¹å®šã—ã¦ã‚‚ã€Œå¼Šç¤¾ã¨ã¯ç„¡é–¢ä¿‚ã€ã§æ‰“ã¡è¿”ã™ä»¥å¤–ãªãã€æ¯ç—’ã„ ã‚³ã‚¹ãƒ‘ã‚ˆãç›´ã›ã‚‹éƒ¨åˆ†ã‚’ã¿ã‚“ãªæ”¾ç½®ã—ã¦ã„ã‚‹ï¼ï¼ï¼ éžæ©Ÿèƒ½è¦ä»¶ã®å„ªå…ˆåº¦ãŒä¸ŠãŒã‚‰
mizdra 2025/02/13
performance
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https://unsloth.ai/blog/deepseekr1-dynamic
mizdra 2025/02/01
LLM

AI

performance
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Mitigating replication lag and reducing read load with freno
mizdra 2025/01/18
performance

database
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November contributions showcase
mizdra 2024/12/09
performance

javascript
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Breaking down CPU speed: How utilization impacts performance
Introduction â›µ The GitHub Performance Engineering team regularly conducts experiments to observe how our systems perform under varying load conditions. A consistent pattern in these experiments is the significant impact of CPU utilization on system performance. Weâ€™ve observed that as CPU utilization rises, it can lead to increased latency, which provides an opportunity to optimize system efficienc
mizdra 2024/11/26
cpu

performance
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CodSpeed: Optimize Performance, Eliminate Regressions
Optimize Performance, Eliminate RegressionsCodSpeed integrates into dev and CI workflows to measure performance, detect regressions, and enable actionable optimizations.
mizdra 2024/10/08
ci

performance

benchmark
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ã‚ãªãŸã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’å€ã«ã™ã‚‹ Frontend Ops ã®å‚å…µã¯ã„ã‹ãŒã§ã™ã‹
ã‚ãªãŸã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’å€ã«ã™ã‚‹ Frontend Ops ã¯ã„ã‹ãŒã§ã™ã‹.md ã‚ãªãŸã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã« Frontend Ops ã‚’ã€‚ ç¾çŠ¶ Full Plan: 1ãƒ¶æœˆ 120ä¸‡ ç§˜å¯†ä¿æŒå¥‘ç´„ã‚’è¡Œã„ã€ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’åˆ†æžã—ã€æ”¹å–„ã‚’è¡Œã„ã¾ã™ ç¾åœ¨å—ä»˜å¯èƒ½ãªã®ã¯ã€1æœˆä»¥é™ã§ã™ èª¿æŸ»è²»ç”¨ã¯50ä¸‡~ã«ãªã‚Šã¾ã™ Lightweight Plan: å¤–éƒ¨è¨ˆæ¸¬ã®ã¿ 50ä¸‡ ç§˜å¯†ä¿æŒå¥‘ç´„æŠœãã§å¤–éƒ¨ã‹ã‚‰ã®ç›£è¦–ã‚’è¡Œã„ã¾ã™ åˆ†æžçµæžœã‚’çµæžœã‚’å¾¡ç¤¾ã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã‚’å«ã‚ã¦èª¬æ˜Žã—ã¾ã™ å ±å‘Šã¯ç¤¾å†…å‹‰å¼·ä¼šå½¢å¼ã«ã™ã‚‹ã“ã¨ã‚‚å¯èƒ½ã§ã™ åˆ†æžã‚’å—ã‘ä»˜ã‘ã‚‰ã‚Œã‚‹ã®ã¯ç‰¹æ®Šãªèªè¨¼ãŒãªã„URLã«ãªã‚Šã¾ã™ èªè¨¼ã‚„ãƒ‰ãƒ¡ã‚¤ãƒ³ç†è§£ã‚’ä¼´ã†URLã¯è¦ç›¸è«‡ã«ãªã‚Šã¾ã™ [çµŒå–¶è€…ã®æ–¹ã¸] ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆãŒé…ããªã£ã¦ã„ã¾ã›ã‚“ã‹?æ©Ÿèƒ½è¿½åŠ ãŒé…ããªã£ã¦ã„ã¾ã›ã‚“ã‹ï¼Ÿ ç§ @mizchi ã¯ Node.js ã¨ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã®ã‚¨ã‚ã‚¹ãƒ‘ãƒ¼ãƒˆã§ã™ã€‚ã‚‚ã—ç§ã‚’çŸ¥ã‚‰ãªã‘ã‚Œã°ã€å¾¡ç¤¾
mizdra 2024/09/02
frontend

performance
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ãƒã‚¹ãƒˆã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ç½ RE: TypeScriptã§ã€Œé¸æŠžè‚¢ã€ã®å®šç¾©ã‚’Enumçš„ãªå®šæ•°ã«ã¾ã¨ã‚ã‚‹
ã“ã®è¨˜äº‹ã¯ã€é™çš„è§£æžã¨ãƒ“ãƒ«ãƒ‰ã‚µã‚¤ã‚ºé¢ã§èˆˆå‘³æ·±ã„ãƒ†ãƒ¼ãƒžã§ã—ãŸã€‚è¨˜äº‹ã¨ã—ã¦è‡ªåˆ†ã®è€ƒãˆã‚’æ›¸ãã¾ã™ã€‚ æ³¨æ„ã€‚ã‚ãã¾ã§ãƒ“ãƒ«ãƒ‰ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹è¦–ç‚¹ã§ã®æœ€é©åŒ–ã§ã™ã€‚å¼·ã„æ„å›³ãŒã‚ã£ã¦ã€è‡ªåˆ†ã®ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ¢ãƒ‡ãƒªãƒ³ã‚°ã®æ–¹æ³•è«–ã§ã¯ã“ã‚ŒãŒæœ€é©ãªã‚“ã ã€ã¨ã„ã†ãªã‚‰å…ƒã‚³ãƒ¼ãƒ‰ã®æ–¹æ³•è«–ã‚’æ¢ã‚ã‚‹ã¤ã‚‚ã‚Šã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ å…ƒè¨˜äº‹ã®ã‚³ãƒ¼ãƒ‰ã‚’ minify ã™ã‚‹ã¨ã©ã†ãªã‚‹ã‹ å…ƒã‚³ãƒ¼ãƒ‰ã‚’å‚è€ƒã«ã€ãã‚Œã«ã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ã„ã¦ã¿ã¾ã™ã€‚ const sortingOptions = { priceDesc: { id: "priceDesc", sort: "price", order: "desc", label: "ä¾¡æ ¼ãŒé«˜ã„é †", }, priceAsc: { id: "priceAsc", sort: "price", order: "asc", label: "ä¾¡æ ¼ãŒå®‰ã„é †", }, ratingDesc: { id: "ra
mizdra 2024/08/15
javascript

performance

security
ãƒªãƒ³ã‚¯
Improving Performance and Reducing Cost Using Availability Zone Affinity | Amazon Web Services
AWS Architecture Blog Improving Performance and Reducing Cost Using Availability Zone Affinity One of the best practices for building resilient systems in Amazon Virtual Private Cloud (VPC) networks is using multiple Availability Zones (AZ). An AZ is one or more discrete data centers with redundant power, networking, and connectivity. Using multiple AZs allows you to operate workloads that are mor
mizdra 2024/08/12
"Roundtrip latency between two instances in the same AZ is generally sub-millisecond when using enhanced networking."

network

performance
ãƒªãƒ³ã‚¯
https://web.thousandeyes.com/rs/772-KGG-249/images/ThousandEyes-Cloud-Performance-Report-2022-Edition.pdf
mizdra 2024/08/12
network

performance
ãƒªãƒ³ã‚¯
Numbers Every Programmer Should Know By Year
<!DOCTYPE html>   <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script src="//d3js.org/d3.v3.min.js"></script> <link rel="stylesheet" href="//ajax.goog
mizdra 2024/08/11
performance

network
ãƒªãƒ³ã‚¯
å…¨ãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ãŒçŸ¥ã‚‹ã¹ããƒ¬ã‚¤ãƒ†ãƒ³ã‚·ãƒ¼æ•°
Latency numbers every programmer should know â€” Gist L1ã‚ãƒ£ãƒƒã‚·ãƒ¥å‚ç…§ 0.5ãƒŠãƒŽç§’ åˆ†å²äºˆæ¸¬å¤±æ•— 5ãƒŠãƒŽç§’ L2ã‚ãƒ£ãƒƒã‚·ãƒ¥å‚ç…§ 7ãƒŠãƒŽç§’ Mutexã®ãƒãƒƒã‚¯ã¨ã‚¢ãƒ³ãƒãƒƒã‚¯ 25ãƒŠãƒŽç§’ ãƒ¡ã‚¤ãƒ³ãƒ¡ãƒ¢ãƒªãƒ¼å‚ç…§ 100ãƒŠãƒŽç§’ Zippy[Snappy]ã«ã‚ˆã‚‹1KBã®åœ§ç¸® 3,000ãƒŠãƒŽç§’ 1Gbpsãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯è¶Šã—ã«2KBã‚’é€ä¿¡ 20,000ãƒŠãƒŽç§’ ãƒ¡ãƒ¢ãƒªãƒ¼ã‹ã‚‰é€£ç¶šã—ãŸ1MBã®é ˜åŸŸã®èªã¿å‡ºã— 250,000ãƒŠãƒŽç§’ åŒä¸€ãƒ‡ãƒ¼ã‚¿ã‚»ãƒ³ã‚¿ãƒ¼å†…ã«ãŠã‘ã‚‹ãƒ©ã‚¦ãƒ³ãƒ‰ãƒˆãƒªãƒƒãƒ— 500,000ãƒŠãƒŽç§’ ãƒ‡ã‚£ã‚¹ã‚¯ã‚·ãƒ¼ã‚¯ 10,000,000ãƒŠãƒŽç§’ ãƒ‡ã‚£ã‚¹ã‚¯ã‹ã‚‰é€£ç¶šã—ãŸ1MBã®é ˜åŸŸã®èªã¿å‡ºã— 20,000,000ãƒŠãƒŽç§’ ãƒ‘ã‚±ãƒƒãƒˆã‚’ã€ã‚«ãƒªãƒ•ã‚©ãƒ«ãƒ‹ã‚¢â†’ã‚ªãƒ©ãƒ³ãƒ€â†’ã‚«ãƒªãƒ•ã‚©ãƒ«ãƒ‹ã‚¢ã¨é€ã‚‹ 150,000,000ãƒŠãƒŽç§’ Jeff Deanè‘—(http://research.googl
mizdra 2024/08/11
performance

network
ãƒªãƒ³ã‚¯
July contributions showcase
mizdra 2024/08/06
javascript

performance
ãƒªãƒ³ã‚¯
Requesting performance isolation with the Origin-Agent-Cluster header Â |Â Articles Â |Â web.dev
Origin-Agent-Cluster is a new HTTP response header that instructs the browser to prevent synchronous scripting access between same-site cross-origin pages. Browsers may also use Origin-Agent-Cluster as a hint that your origin should get its own, separate resources, such as a dedicated process. Browser compatibility Currently the Origin-Agent-Cluster header is only implemented in Chrome 88 onward.
mizdra 2024/08/05
web

performance

security
ãƒªãƒ³ã‚¯
Learnings from 'ts-blank-space`
ts-blank-space-doc.md Learnings from ts-blank-space tags: TypeScript, type erasure, type stripping ts-blank-space As part of my work on the JavaScript Tooling team at Bloomberg I have implemented an experimental (not yet used in production) package to transf orm TypeScript into JavaScript using a somewhat novel approach. This is a description of what I learned from implementing the idea. The source
mizdra 2024/07/08
Bloomberg å†…è£½ã® TypeScript ãƒˆãƒ©ãƒ³ã‚¹ãƒ‘ã‚¤ãƒ©ã«ã¤ã„ã¦ã€‚åž‹æ³¨é‡ˆãŒã‚ã£ãŸå ´æ‰€ã‚’ç©ºç™½ã‚¹ãƒšãƒ¼ã‚¹ã§åŸ‹ã‚ã‚‹ã“ã¨ã§ã€.ts => .js ã«ãƒˆãƒ©ãƒ³ã‚¹ãƒ‘ã‚¤ãƒ«ã—ãŸæ™‚ã«è¡Œç•ªå·ãƒ»åˆ—ç•ªå·ã®å¯¾å¿œãŒç¶æŒã•ã‚Œã€source map ã®ç”Ÿæˆã‚’ç°¡ç•¥åŒ–ã§ãã‚‹ã¨ã€‚è³¢ã„ã€‚

typescript

performance
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é«˜æ€§èƒ½ãª CSS ã‚¢ãƒ‹ãƒ¡ãƒ¼ã‚·ãƒ§ãƒ³ã‚’ä½œæˆã™ã‚‹æ–¹æ³• Â |Â Articles Â |Â web.dev
è¦ç´ ã‚’ç§»å‹•ã™ã‚‹ è¦ç´ ã‚’ç§»å‹•ã™ã‚‹ã«ã¯ã€transf orm ãƒ—ãƒãƒ‘ãƒ†ã‚£ã® translate ã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰å€¤ã¾ãŸã¯ rotation ã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰å€¤ã‚’ä½¿ç”¨ã—ã¾ã™ã€‚ ãŸã¨ãˆã°ã€ã‚¢ã‚¤ãƒ†ãƒ ã‚’ãƒ“ãƒ¥ãƒ¼ã«ã‚¹ãƒ©ã‚¤ãƒ‰ã™ã‚‹ã«ã¯ã€translate ã‚’ä½¿ç”¨ã—ã¾ã™ã€‚ .animate { animation: slide-in 0.7s both; } @keyframes slide-in { 0% { transf orm: translateY(-1000px); } 100% { transf orm: translateY(0); } } è¦ç´ ã‚’å›žè»¢ã™ã‚‹ã«ã¯ rotate ã‚’ä½¿ç”¨ã—ã¾ã™ã€‚æ¬¡ã®ä¾‹ã§ã¯ã€è¦ç´ ã‚’ 360 åº¦å›žè»¢ã•ã›ã¾ã™ã€‚ .animate { animation: rotate 0.7s ease-in-out both; } @keyframes rotate { 0% { transf orm: ro
mizdra 2024/06/10
css

performance
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å¤§è¦æ¨¡ã§è¤‡é›‘ãªãƒ¬ã‚¤ã‚¢ã‚¦ãƒˆã¨ãƒ¬ã‚¤ã‚¢ã‚¦ãƒˆã®ã‚¹ãƒ©ãƒƒã‚·ãƒ³ã‚°ã‚’å›žé¿ã™ã‚‹ Â |Â Articles Â |Â web.dev
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mizdra 2024/06/10
css

performance
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Layout Thrashing and Forced Reflows
mizdra 2024/06/07
performance

css
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Maglev - V8â€™s Fastest Optimizing JIT Â· V8
In Chrome M117 we introduced a new optimizing compiler: Maglev. Maglev sits between our existing Sparkplug and TurboFan compilers, and fills the role of a fast optimizing compiler that generates good enough code, fast enough. Background # Until 2021 V8 had two main execution tiers: Ignition, the interpreter; and TurboFan, V8â€™s optimizing compiler focused on peak performance. All JavaScript code is
mizdra 2024/04/28
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javascript

performance

browser
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