GitHub - jlfwong/speedscope: 🔬 A fast, interactive web-based viewer for performance profiles.You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
How we migrated Dropbox from Nginx to Envoy
In this blogpost we’ll talk about the old Nginx-based traffic infrastructure, its pain points, and the benefits we gained by migrating to Envoy. We’ll compare Nginx to Envoy across many software engineering and operational dimensions. We’ll also briefly touch on the migration process, its current state, and some of the problems encountered on the way. When we moved most of Dropbox traffic to Envoy
Webフãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ パフォーマンス改善ãƒãƒ³ãƒ‰ãƒ–ックを公開ã—ã¾ã—㟠- dwango on GitHub
パフォーマンス改善ãƒãƒ³ãƒ‰ãƒ–ック ウェブページã«ãŠã‘るパフォーマンスã«é–¢ã™ã‚‹å•é¡Œã®è¦‹ã¤ã‘方や考ãˆæ–¹ã®äº‹ä¾‹ã‚’ã¾ã¨ã‚㟠Webフãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ パフォーマンス改善ãƒãƒ³ãƒ‰ãƒ–ックを公開ã—ã¾ã—ãŸã€‚ URL: https://dwango-js.github.io/performance-handbook/ ã“ã®ãƒãƒ³ãƒ‰ãƒ–ックã§ã¯éŽåŽ»ã«è¡Œã£ãŸWebフãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã®ãƒ‘フォーマンス改善ã®äº‹ä¾‹ã‚’ä¸å¿ƒã«ç´¹ä»‹ã—ã¦ã„ã¾ã™ã€‚ 注æ„点ã¨ã—ã¦Webフãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã¯å¸¸ã«å¤‰åŒ–ã—ã¦ã„ã‚‹ãŸã‚ã€ç¾åœ¨ã®æœ€é©ãªè§£æ±ºæ–¹æ³•ã‚’æ案ã™ã‚‹ã‚‚ã®ã§ã¯ã‚ã‚Šã¾ã›ã‚“。 ã¾ãŸã€ã‚¢ãƒ—リケーションã«ã‚ˆã£ã¦ã‚‚最é©ãªè§£æ±ºæ–¹æ³•ã¯ç•°ãªã‚Šã¾ã™ã€‚ 今回ã®äº‹ä¾‹ã§ã¯Viewライブラリã«Reactを用ã„ã€æ˜ åƒå†ç”Ÿãƒ—レイヤーãªã©ã‚る程度複雑ãªæ©Ÿèƒ½ã‚’æŒã£ãŸã‚¦ã‚§ãƒ–アプリケーションã®Webフãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚’扱ã„ã¾ã™ã€‚ 具体的ã«ã¯ãƒ‹ã‚³ãƒ‹ã‚³ç”Ÿæ”¾é€ï¼ˆä»¥ä¸‹ã€Œç”Ÿæ”¾é€ã€ï¼‰ã§è¡Œã£ãŸäº‹ä¾‹ã‚’ä¸å¿ƒã«æ›¸ã‹ã‚Œã¦ã„ã¾
Python WSGI Server Comparison pt 2 | Performance Analysis
In part 2 of our Python WSGI Server Comparison series, we share our performance analysis benchmarks for the top 6 Python WSGI Servers, and reveal the highest performing Python WSGI Server. In Part 1 of this series, we introduced you to WSGI and the top 6 WSGI web servers. In this post, we’ll show you the result of our performance benchmark analysis of these servers. There are many production-grade
How a Rust upgrade more than tripled the speed of my code
I’d like to share a quick story about the sheer power of LLVM and the benefits of using higher-level languages over assembly. I work at Parity Technologies, who maintains the Parity Ethereum client. In this client we have a need for performant 256-bit arithmetic, which we have to emulate in software since no modern hardware supports it natively. For a long time we’ve maintained parallel implementa
スãƒãƒ¼ã‚¯ã‚¨ãƒªã®æ”¹å–„ | Let's POSTGRES
EXPLAIN ã‚„ EXPLAIN ANALYZE ã®ä½¿ã„æ–¹ã¨ã€ãれらを利用ã—ã¦ã‚¹ãƒãƒ¼ã‚¯ã‚¨ãƒªã®å®Ÿè¡Œè¨ˆç”»ã‚’改善ã™ã‚‹æ–¹æ³•ã‚’紹介ã—ã¾ã™ã€‚ Explaining Explain ～ PostgreSQLã®å®Ÿè¡Œè¨ˆç”»ã‚’èªã‚€ ～ (PDF版) OSCON 2005 ã§è¬›æ¼”ã•ã‚Œã€2005å¹´ã®JPUGå¤åˆå®¿ã§åˆ†æ‹…ã—ã¦ç¿»è¨³ã—ãŸç™ºè¡¨è³‡æ–™ã§ã™ã€‚PostgreSQL 8.3 ã«å¯¾å¿œã§ãるよã†å†…容を更新ã—ã¦ã„ã¾ã™ã€‚ Explaining Explain ～ PostgreSQLã®å®Ÿè¡Œè¨ˆç”»ã‚’èªã‚€ ～ (PPT版) OSCON 2005 ã§è¬›æ¼”ã•ã‚Œã€2005å¹´ã®JPUGå¤åˆå®¿ã§åˆ†æ‹…ã—ã¦ç¿»è¨³ã—ãŸç™ºè¡¨è³‡æ–™ã§ã™ã€‚PostgreSQL 8.3 ã«å¯¾å¿œã§ãるよã†å†…容を更新ã—ã¦ã„ã¾ã™ã€‚
DockerコンテナãŒé…ããªã‚‹ã‚‚ã†ä¸€ã¤ã®åŽŸå› | POSTD
å‰å›žã® ブãƒã‚°è¨˜äº‹ ã§ã¯ã€Kubernetesã®è©±ã¨ã€ ThoughtSpot ãŒKubernetesを開発インフラã®ãƒ‹ãƒ¼ã‚ºã«åˆã‚ã›ã¦ã©ã®ã‚ˆã†ã«å–り入れãŸã‹ã‚’ã”紹介ã—ã¾ã—ãŸã€‚今回ã¯ãã®ç¶šå ±ã¨ã—ã¦ã€æœ€è¿‘ã®èˆˆå‘³æ·±ã„デãƒãƒƒã‚°çµŒé¨“ã«ã¤ã„ã¦å°‘々駆ã‘足ã«ãªã‚Šã¾ã™ãŒãŠè©±ã—ã—ã¦ã„ãã¾ã™ã€‚本記事も「コンテナ化ã¨ä»®æƒ³åŒ–ã¯ãƒŽãƒƒãƒˆã‚¤ã‚³ãƒ¼ãƒ«ã§ã‚ã‚‹ã€ã¨ã„ã†äº‹å®Ÿã«åŸºã¥ã„ã¦ãŠã‚Šã€ãŸã¨ãˆcgroupã®ä¸Šé™ãŒã©ã‚Œã‚‚高ããªã„値ã«è¨å®šã•ã‚Œãƒ›ã‚¹ãƒˆãƒžã‚·ãƒ³ã§å分ãªæ¼”算能力ãŒåˆ©ç”¨ã§ãã‚‹ã¨ã—ã¦ã‚‚ã€ã‚³ãƒ³ãƒ†ãƒŠåŒ–ã•ã‚ŒãŸãƒ—ãƒã‚»ã‚¹åŒå£«ãŒãƒªã‚½ãƒ¼ã‚¹ã®ç«¶åˆã‚’èµ·ã“ã™å ´åˆãŒã‚ã‚‹ã“ã¨ã‚’示ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ ThoughtSpotã§ã¯å†…部ã®Kubernetesクラスタ㧠多数ã®CI/CDや開発関連ã®ãƒ¯ãƒ¼ã‚¯ãƒ•ãƒãƒ¼ を稼åƒã•ã›ã¦ãŠã‚Šã€ã‚ã‚‹1点を除ã„ã¦ã¯å…¨ã¦ãŒé †èª¿ã§ã—ãŸã€‚唯一å•é¡Œã ã£ãŸã®ã¯ã€ãƒ‰ãƒƒã‚«ãƒ¼åŒ–ã•ã‚ŒãŸè£½å“コピーを起動ã™ã‚‹ã¨ã€ãƒ‘フォーマンスãŒæœŸå¾…を極端ã«ä¸‹å›žã‚‹ãƒ¬ãƒ™
CockroachDB 2.0 performance makes significant strides
[For CockroachDB's most up-to-date performance benchmarks, please read our Performance Overview page] Correctness, stability, and performance are the foundations of CockroachDB. We've invested tremendous resources into correctness and stability. Today, performance takes the spotlight as we will be publishing benchmarked metrics that demonstrate that you can achieve correctness, stability, and exce
Zero Copy I: User-Mode Perspective | Linux Journal
By now almost everyone has heard of so-called zero-copy functionality under Linux, but I often run into people who don't have a full understanding of the subject. Because of this, I decided to write a few articles that dig into the matter a bit deeper, in the hope of unraveling this useful feature. In this article, we take a look at zero copy from a user-mode application point of view, so gory ker
PostgreSQLã§auto_explainを使ã£ã¦ã©ã®ã‚¯ã‚¨ãƒªãŒé…ã„ã‹æŠŠæ¡ã™ã‚‹ - $shibayu36->blog;
ã‚る機能ãŒé‡ã„ãªã©ã¨ã„ã£ãŸç†ç”±ã§ã€DBã®ã©ã®ã‚¯ã‚¨ãƒªãŒé…ã„ã‹æŠŠæ¡ã—ãŸã„ã“ã¨ã¯ã‚ˆãã‚ã‚Šã¾ã™ã€‚ãã‚“ãªæ™‚ã€PostgreSQLã®auto_explainãŒä¾¿åˆ©ã ã£ãŸã®ã§ç´¹ä»‹ã€‚ auto_explainを使ã†ã¨ã€æŒ‡å®šã—ãŸå®Ÿè¡Œæ™‚間以上を利用ã—ã¦ã„るクエリã«å¯¾ã—ã¦ã€è‡ªå‹•ã§å®Ÿè¡Œè¨ˆç”»ã‚’ãƒã‚°ãƒ•ã‚¡ã‚¤ãƒ«ã«å‡ºåŠ›ã—ã¦ãれるã¨ã„ã†ã‚‚ã®ã€‚詳細ã¯ã“ã¡ã‚‰ã€‚ https://www.postgresql.jp/document/9.6/html/auto-explain.html https://www.postgresql.jp/document/9.6/html/using-explain.html 最近便利ã«ä½¿ãˆãŸã®ã¯ä»¥ä¸‹ã®è¨å®šã€‚ # 自動ã§EXPLAIN ANALYZEã—ã¦ãƒ‘フォーマンス解æžã—ãŸã„時用 session_preload_libraries = 'auto_explain' auto_explain.log
Caching Service for Amazon DynamoDB - Amazon DynamoDB Accelerator (DAX) - AWS
Amazon DynamoDB Accelerator (DAX) Caching service purpose-built for DynamoDB compatibility Amazon DynamoDB Accelerator (DAX) is a fully managed, highly available caching service built for Amazon DynamoDB. DAX delivers up to a 10 times performance improvement—from milliseconds to microseconds—even at millions of requests per second. DAX does all the heavy lifting required to add in-memory accelerat
Speeding Up `dwarfdump` With Rust
Eyes Above The Waves Robert O'Callahan. Christian. Repatriate Kiwi. Hacker. Archive 2024 December Mt Arthur/Tablelands/Cobb Valley November Queen Charlotte Track 2024 October Auckland Half Marathon 2024 Advanced Debugging Technology In Practice June Waihohonu Hut 2024 So You Want To Build A Browser Engine Real-Time Settlers Of Catan April Auckland Waterfront Half Marathon 2024 Whanganui River Jour
How to find disk I/O latency with ioping monitoring tool on Linux
How do I monitor disk I/O latency in real time on Linux, FreeBSD, OpenBSD, and MacOS operating system? You can use ioping tool to monitor I/O latency in real time. It shows disk latency in the same way as ping command shows network latency on Linux or Unix-like system. Installation Install as per your operating system. Install ioping on a Debian/Ubuntu/Mint Linux Type the following apt-get command
Essential Image Optimization
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GitHub - coord-e/magicpak: :hammer: Build minimal docker images without static linking
GitHub - emeryberger/scalene: Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python
https://crates.io/crates/ufmt
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GitHub - ScottMansfield/nanolog: Nanosecond scale logger inspired by https://github.com/PlatformLab/NanoLog
BPF: Tracing and More
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