DTrace on Windows
Here at Microsoft, we are always looking to engage with open source communities to produce better solutions for the community and our customers . One of the more useful debugging advances that have arrived in the last decade is DTrace. DTrace of course needs no introduction: it’s a dynamic tracing framework that allows an admin or developer to get a real-time look into a system either in user or k
bpftrace (DTrace 2.0) for Linux 2018
Recent posts: 28 Apr 2023 » eBPF Observability Tools Are Not Security Tools 01 Mar 2023 » USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon 17 Feb 2023 » USENIX SREcon APAC 2023: CFP 02 May 2022 » [email protected] 15 Apr 2022 » Netflix End of Series 1 09 Apr 2022 » TensorFlow Library Performance 19 Mar 2022 » Why Don't You Use ... 26 Sep 2021 » The Speed of Time 06 Sep 2021 »
DTrace: Dynamic Tracing in Oracle Solaris, Mac OS X and FreeBSD | InformIT
Description Copyright 2011 Dimensions: 7" x 9-1/8" Edition: 1st Book ISBN-10: 0-13-209151-8 ISBN-13: 978-0-13-209151-0 The Oracle Solaris DTrace feature revolutionizes the way you debug operating systems and applications. Using DTrace, you can dynamically instrument software and quickly answer virtually any question about its behavior. Now, for the first time, there's a comprehensive, authoritativ
DTrace Tools
Recent posts: 22 Jul 2024 » No More Blue Fridays 24 Mar 2024 » Linux Crisis Tools 17 Mar 2024 » The Return of the Frame Pointers 10 Mar 2024 » eBPF Documentary 28 Apr 2023 » eBPF Observability Tools Are Not Security Tools 01 Mar 2023 » USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon 17 Feb 2023 » USENIX SREcon APAC 2023: CFP 02 May 2022 » [email protected] 15 Apr 2022 » Netfl
Profile Ruby 2.0 apps using DTrace - part 2
This is Part - 2 in series of articles we are writing on Dtrace. If you haven't already - do read Part 1. Running Dtrace scripts Before we delve deeper into guts of Dtrace, one of the questions which I often get asked is, How can I profile one off programs (i.e not a application running in background) with Dtrace. There are basically couple of ways you can fire Dtrace. One of them is obviously str
é©å‘½ã®æ—¥ã€…ï¼ ruby 2.0 ã® dtrace featureã‚’ systemtap ã‹ã‚‰ä½¿ã†æ–¹æ³•
ã“ã®è¨˜äº‹ã¯ Ruby ã® Advent Calendar ã«å‚åŠ ã—よã†ã¨ã—ã¦ç”¨æ„ã—ã¾ã—ãŸãŒã€é–“ã«åˆã‚ãªã‹ã£ãŸã‚‚ã®ã§ã™ã€‚ Ruby 2.0ã§dtrace対応ãŒå…¥ã‚Šã¾ã—ãŸã€‚ã“ã®æ©Ÿèƒ½ã¯Linuxã®systemtapã‹ã‚‰ã‚‚アクセス出æ¥ã¾ã™ã€‚ã§ã‚‚ã€ã©ã“ã«ã‚‚ドã‚ュメントãŒãªã„ã®ã§ã„ã£ã¡ã‚‡ä½¿ã„方を解説ã—よã†ã¨ã„ã†ã€ãã†ã„ã†è¶£æ—¨ã®è¨˜äº‹ã§ã™ã€‚ ã¾ãšã€åŸºæœ¬ã®ä½¿ã„æ–¹ã§ã™ãŒã€ä»¥ä¸‹ã®æ§˜ã« process(プãƒã‚»ã‚¹å).provider("ruby").mark(Rubyã§å®šç¾©ã•ã‚Œã¦ã‚‹probeå) ã§å¼•ã£æŽ›ã‘るイベントåã‚’ 記述ã—ã¦ã€tapscriptを記述ã—ã¾ã™ ruby.stp probe process("./ruby").provider("ruby").mark("find__require__entry") { printf("%s %s %d\n", user_string($arg1), user_
RubyMotion アプリ㧠DTrace を使ã£ã¦ã¿ã‚ˆã† - Watson's Blog
ã“ã®è¨˜äº‹ã¯ RubyMotion Advent Calendar 2012 ã® 3 日目ã®è¨˜äº‹ã§ã™ã€‚ DTrace 㯠Sun Microsystems ãŒé–‹ç™ºã—ãŸå®Ÿè¡Œä¸ã®ã‚¢ãƒ—リã®æƒ…å ±ã‚’å–å¾—ã™ã‚‹ä»•çµ„ã¿ã§ã™ã€‚DTrace を使用ã™ã‚‹ã¨ã‚¢ãƒ—リケーションを一切変更ã™ã‚‹ã“ã¨ãªãæƒ…å ±å–å¾—ã‚’å¯èƒ½ã«ã—ã¾ã™ã€‚ Xcode ã«ä»˜å±žã—ã¦ã„ã‚‹ Instruments ãŒæ§˜ã€…ãªæƒ…å ±ã‚’è¡¨ç¤ºã§ãã‚‹ã®ã¯ã€ç¸ã®ä¸‹ã« DTrace ãŒå˜åœ¨ã—ã¦ã„ã‚‹ã‹ã‚‰ã§ã™ã€‚ Ruby 2.0 preview2 ã§ã„よã„よ DTrace ãŒã‚µãƒãƒ¼ãƒˆã•ã‚Œã¾ã—ãŸãŒã€MacRuby ã‚„ RubyMotion ã§ã¯ã™ã§ã« DTrace をサãƒãƒ¼ãƒˆã—ã¦ã„ã¾ã™ã€‚ プãƒãƒ¼ãƒ–を確èªã—ã¦ã¿ã‚‹ DTrace ã§ã¯ã€ã‚¢ãƒ—リã«åŸ‹ã‚è¾¼ã¾ã‚Œã¦ã„る「プãƒãƒ¼ãƒ–ã€ã¨å‘¼ã°ã‚Œã‚‹è¨ˆæ¸¬ãƒã‚¤ãƒ³ãƒˆã‚’用ã„ã€è¿½è·¡ã‚’ãŠã“ãªã„ã¾ã™ã€‚ ç¾åœ¨åˆ©ç”¨å¯èƒ½ãªãƒ—ãƒãƒ¼ãƒ–ã®ä¸€è¦§ã¯ sudo dtrace -l
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皆ã•ã‚“ã¯dtraceã‚’ã”å˜ã˜ã§ã—ょã†ã‹ï¼Ÿã“ã®ã‚ˆã†ãªã‚·ãƒ“レル機能ã¯ã‚ªãƒˆã‚³ã¨ã—ã¦ã¯è¦‹é€ƒã›ã¾ã›ã‚“。今回ã¯çš†ã•ã‚“ã«dtraceを紹介ã—よã†ã¨æ€ã„ã¾ã™ã€‚ DTraceã¨ã¯ï¼Ÿ Solaris 10ã«æ載ã•ã‚ŒãŸæ©Ÿèƒ½ã§ã€å称ã¯Dynamic Tracingã‹ã‚‰æ¥ã¦ã„ã¾ã™ã€‚Sunã®ãƒžãƒ‹ãƒ¥ã‚¢ãƒ«ã‚’見るã¨ã€Œå‹•çš„トレースã€ã¨æ›¸ã„ã¦ã‚ã‚Šã¾ã™ã€‚よã†ã¯ã‚·ã‚¹ãƒ†ãƒ ã‚’å‹•ã‹ã—ãŸã¾ã¾ãƒˆãƒ¬ãƒ¼ã‚¹ã™ã‚‹ï¼ˆã‚·ã‚¹ãƒ†ãƒ 今ã©ã“を実行ã—ã¦ã„ã‚‹ã®ã‹ã€å¤‰æ•°ãŒã©ã‚“ãªå€¤ã«ãªã£ã¦ã„ã‚‹ã‹ãªã©ã‚’調査ã™ã‚‹ï¼‰ãƒ„ールã®ã“ã¨ã§ã™ã€‚使ã„よã†ã«ã‚ˆã£ã¦ã¯å¼·åŠ›ãªãƒ‡ãƒãƒƒã‚¬ãƒ¼ã«ãªã‚Šã¾ã™ã€‚ã¾ãŸã€ãƒ—ãƒã‚°ãƒ©ãƒ ãŒå‹•ä½œã—ãŸç—•è·¡ï¼ˆã©ã®é–¢æ•°ã‚’何回呼ã³å‡ºã—ãŸã‹ï¼Ÿãªã©ï¼‰ã‚’集計ã§ãã‚‹ã“ã¨ã‹ã‚‰ã€æ€§èƒ½åˆ†æžã«ã‚‚ã‚‚ã£ã¦ã“ã„ã§ã™ã€‚デãƒãƒƒã‚°ã‚„パフォーマンスãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã§ãŠæ‚©ã¿ã®çš†ã•ã‚“ã¯ã€æ˜¯éžä½¿ã£ã¦ã¿ã¦ãã ã•ã„。 ã“ã‚Œã¾ã§ã€DTraceã®ã‚ˆã†ãªæ©Ÿèƒ½ã‚’æä¾›ã™ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã¯ã‚ã‚Šã¾ã›ã‚“ã§ã—ãŸã€‚ä¼¼ãŸã‚ˆã†ãªã‚‚ã®ãŒã‚ã£ãŸã¨ã—ã¦
DTraceToolkit (Community Group dtrace.dtracetoolkit) - XWiki
The DTraceToolkit is a collection of over 200 useful and documented DTrace scripts developed by Brendan Gregg.Current version of the DTraceToolkit: DTraceToolkit-0.99.tar.gz Current version, browsable as HTML: DTraceToolkit 0.99 HTML After downloading:gunzip and tar xvf the file.cd to the toolkit directory.Run ./install. (This step is optional. You can use the toolkit without doing this.)Read the
Brendan's blog » Top 10 DTrace scripts for Mac OS X
Notice: get_bloginfo was called with an argument that is deprecated since version 2.2! The home option is deprecated for the family of bloginfo() functions. Use the url option instead. in /home/knmngmprl21d/public_html/blogs/wp-includes/functions.php on line 3551 http://dtrace.org/blogs/brendan/"> Since version 10.5 “Leopardâ€, Mac OS X has had DTrace, a tool used for performance analysis and troub
Oracleã€Linuxå‘ã‘DTraceã®ã‚»ã‚«ãƒ³ãƒ‰ãƒ™ãƒ¼ã‚¿ç‰ˆã‚’公開
Oracle, The World's Largest Enterprise Software Company Oracleã¯22æ—¥(米国時間)ã€Linuxå‘ã‘DTraceã®ã‚»ã‚«ãƒ³ãƒ‰ãƒ™ãƒ¼ã‚¿ç‰ˆã‚’公開ã—ãŸã€‚ã“ã®DTraceã¯Oracle Linux 6ã®ä¸€éƒ¨ã¨ã—ã¦é–‹ç™ºã•ã‚Œã¦ã„る。Linuxå‘ã‘DTraceを使用ã™ã‚‹ã«ã¯Linux 2.6.39ベースã®Oracle euk2(Unbreakable Enterprise Kernel Version 2)ãŒå¿…è¦ã€‚euk2åŠã³DTraceã¯ULN(Unbreakable Linux Network)よりå–å¾—ã§ãる。 今回リリースã•ã‚ŒãŸLinuxå‘ã‘DTraceã§ã¯ã€SDT(Statically Defined Tracing)プãƒãƒã‚¤ãƒ€ã‚’実装ã—ã¦ã€ã‚«ãƒ¼ãƒãƒ«å†…ã«é™çš„プãƒãƒ¼ãƒ–を埋ã‚込んã ã¨ã„ã†ã€‚ã¾ãŸã€ã„ãã¤ã‹ã®ãƒã‚°ã‚‚ä¿®æ£ã•ã‚Œã¦ã„ã‚‹ã¨ã„ã†ã€‚ DTrace
第2回　関数引数ï¼æˆ»ã‚Šå€¤ã®æŽ¡å– | gihyo.jp
上記ã®å„è¦ç´ ã®çµ„ã¿åˆã‚ã›ã«ã‚ˆã£ã¦ç‰¹å®šã•ã‚Œã‚‹ã€Œæƒ…å ±æŽ¡å–対象ã€ã®ã“ã¨ã‚’ã€DTrace ã§ã¯ãƒ—ãƒãƒ¼ãƒ–（probe）ã¨å‘¼ã³ã¾ã™ã€‚ <ProbeModule>ã¨<ProbeFunc> ãŒæŽ¡å–対象ã¨ãªã‚‹é–¢æ•°ï¼ˆï¼ç¯„囲）をã€<Provider> ã¨<ProbeName> ãŒæŽ¡å–対象ã¨ãªã‚‹æƒ…å ±ï¼ˆï¼ç¨®åˆ¥ï¼‰ã‚’絞り込ã¿ã¾ã™ã€‚ <Probe-Description> ä¸ã®å„è¦ç´ ã¯çœç•¥å¯èƒ½ã§ã€çœç•¥ã•ã‚ŒãŸå ´åˆã¯ã€Œé¸æŠžå¯èƒ½ãªå…¨ã¦ã€ãŒæŒ‡å®šã•ã‚ŒãŸã‚‚ã®ã¨ã¿ãªã•ã‚Œã¾ã™ã€‚ ãŸã ã—ã€pidプãƒãƒã‚¤ãƒ€ã‚’使用ã—ã¦ãƒ¦ãƒ¼ã‚¶ãƒ—ãƒã‚°ãƒ©ãƒ ã‹ã‚‰æƒ…å ±æŽ¡å–ã™ã‚‹å ´åˆã€å®Ÿè³ªçš„ã«çœç•¥å¯èƒ½ãªè¦ç´ ã¯<ProbeFunc>ãらã„ã ã¨æ€ã£ã¦ãã ã•ã„（※2â ）â 。 <Action> ãŒå®Ÿè¡Œã•ã‚Œã‚‹éš›ã®æŽ¡å–対象プãƒãƒ¼ãƒ–ã«é–¢ã™ã‚‹<Probe-Description> ä¸ã®å„è¦ç´ ã¯ã€Dスクリプトä¸ã‹ã‚‰ãã‚Œãžã‚Œprobeprovã€probemodã€probefunc ãŠã‚ˆã³ p
メモ : MacRubyã§dtraceを使ㆠ- Watsonã®ãƒ¡ãƒ¢
MacRuby 0.5 beta 2ã‹ã‚‰ã€MacRubyã§dtraceを使ã†ã“ã¨ãŒã§ãã¾ã™ã€‚dtraceã®ã‚µãƒ³ãƒ—ルãŒ/MacRuby/tags/0.6/sample-macruby/DTraceã«ã‚ã‚‹ã®ã§æ‰‹è»½ã«è©¦ã›ã¾ã™ã€‚ å‹•ã‹ã—æ–¹ã¯ã€ sudo dtrace -qs dtraceスクリプトファイル -c "èµ·å‹•ã™ã‚‹ã‚³ãƒžãƒ³ãƒ‰" $ sudo dtrace -qs methods_count.d -c "macruby fib.rb" ã¨ã„ã†æ„Ÿã˜ã§å‹•ã‹ã›ã¾ã™ã€‚ MacRubyã§ã‚µãƒãƒ¼ãƒˆã—ã¦ã„るプãƒãƒ¼ãƒ– プãƒãƒ¼ãƒ–å実行タイミングarg0arg1arg2arg3 method-entryメソッド呼出開始クラスåメソッドåã‚½ãƒ¼ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«è¡Œç•ªå· method-returnメソッド呼出終了クラスåメソッドåã‚½ãƒ¼ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«è¡Œç•ªå· raise例外発生時クラスåソースファイル行番å·- 例：例外を検出ã—ã¦ã¿ã‚‹
第5å›žã€€çµ±è¨ˆæƒ…å ±ã®æŽ¡å– | gihyo.jp
ãŸã¨ãˆã°ã€ã‚る関数ã®å‘¼ã³å‡ºã—ã«ãŠã‘る第1引数値（arg0）ã®å¹³å‡å€¤ã‚’知りãŸã„å ´åˆã€ãƒªã‚¹ãƒˆ3ã®ã‚ˆã†ãªDスクリプトを使用ã—ã¾ã™ï¼ˆçµ‚了時ã®å‡ºåŠ›å‡¦ç†ã¯çœç•¥ã—ã¾ã™â ）â 。 リスト3　引数平å‡å€¤ã®æŽ¡å– pid$target:$1:$2:entry { @val = avg(arg0); } 通常ã®å¤‰æ•°ã‚’用ã„ã¦åŒç‰ã®å‡¦ç†ã‚’ã—よã†ã¨ã™ã‚‹å ´åˆã€ç®—出対象（ï¼é›†ç©ä½“ã®å¤‰æ•°ã«ç›¸å½“）ã”ã¨ã«ä»¥ä¸‹ã®å€¤ã‚’ãã‚Œãžã‚Œé›†è¨ˆã—ã¦ãŠã„ãŸä¸Šã§ã€çµ‚了時点ã§æ”¹ã‚ã¦çµæžœã‚’算出ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ã‚ã‘ã§ã™ã‹ã‚‰ã€é›†ç©ä½“ã®åˆ©ä¾¿æ€§ãŒã‚ã‹ã‚‹ã®ã§ã¯ãªã„ã§ã—ょã†ã‹ã€‚ ç·å‘¼ã³å‡ºã—回数 å„呼ã³å‡ºã—ã”ã¨ã®æŒ‡å®šå€¤ ã‚ーã«ã‚ˆã‚‹åˆ†é¡ž 実際ã«çµ±è¨ˆæƒ…å ±æŽ¡å–ã®æ©Ÿèƒ½ã‚’利用ã™ã‚‹å ´åˆã«ã¯ã€å…ˆè¿°ã—ãŸã‚ˆã†ãªå›ºå®šçš„ãªæƒ…å ±ã®è¨˜éŒ²ã§ã¯å¯¾å¿œã§ããªã„ケースã®æ–¹ãŒå¤šã„ã€ã¨è¨€ã£ã¦ã‚‚éŽè¨€ã§ã¯æœ‰ã‚Šã¾ã›ã‚“。 DTraceã®é›†ç©ä½“ã¯ã€å€‹åˆ¥ã®å€¤ã®æ ¼ç´ã®éš›ã«ã‚ーを指定ã™ã‚‹ã“ã¨ã§ã€ã²ã¨ã¤ã®é›†ç©ä½“ã«å¯¾ã—ã¦è¤‡æ•°ã®å€¤ã‚’
第4回　å‰ææ¡ä»¶ã®è¨˜è¿° | gihyo.jp
ã“ã‚Œã¾ã§èª¬æ˜Žã—ã¦ããŸDスクリプトã§ã¯ã€ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«åや関数åã¨ã„ã£ãŸå˜ä½ã§æŽ¡å–対象を特定ã—ã¦ã„ã¾ã—ãŸã€‚ 今回ã¯ã€ã‚‚ã£ã¨è¤‡é›‘ãªæŽ¡å–対象ã®çµžã‚Šè¾¼ã¿ã‚’å¯èƒ½ã¨ã™ã‚‹ã€å‰ææ¡ä»¶ã®è¨˜è¿°æ–¹æ³•ã«ã¤ã„ã¦èª¬æ˜Žã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ 特定関数ã®å‘¼ã³å‡ºã—契機ã§ã®çµžã‚Šè¾¼ã¿ 本連載ã§ã“ã‚Œã¾ã§ä¾‹ç¤ºã—ã¦ããŸDスクリプトã¯ã€ç‰¹å®šã®é–¢æ•°ã‹ã‚‰å¼•æ•°ã‚„戻り値を採å–ã™ã‚‹ä¸€éƒ¨ã®ä¾‹å¤–を除ã„ã¦ã¯ã€åŸºæœ¬çš„ã«å…¨ã¦ã®é–¢æ•°ãƒ•ãƒãƒ¼ã‚’採å–ã™ã‚‹ã‚‚ã®ã§ã—ãŸã€‚ ã—ã‹ã—ã€å¿…ãšã—ã‚‚å…¨ã¦ã®é–¢æ•°ãƒ•ãƒãƒ¼ã®æŽ¡å–ãŒå¿…è¦ãªã‚±ãƒ¼ã‚¹ã°ã‹ã‚Šã§ã¯ã‚ã‚Šã¾ã›ã‚“。むã—ã‚å…¨ã¦ã®é–¢æ•°ãƒ•ãƒãƒ¼ã‚’採å–ã—ãŸå ´åˆã€ä»¥ä¸‹ã®ã‚ˆã†ãªãƒ‡ãƒ¡ãƒªãƒƒãƒˆãŒç”Ÿã˜ã¾ã™ã€‚ 採å–çµæžœã®ä¸ã‹ã‚‰èª¿æŸ»å¯¾è±¡ã‚’特定ã™ã‚‹ã®ãŒé›£ã—ããªã‚‹ 採å–çµæžœã®è¨˜éŒ²ã«å¿…è¦ãªãƒ‡ã‚£ã‚¹ã‚¯é ˜åŸŸãŒå¢—åŠ ã™ã‚‹ ã“ã®ã‚ˆã†ãªãƒ‡ãƒ¡ãƒªãƒƒãƒˆã‚’ç„¡ãã™ãŸã‚ã«ã¯ã€æŽ¡å–範囲ã®çµžã‚Šè¾¼ã¿ãŒå¿…è¦ã§ã™ã€‚ ãŸã¨ãˆã°ã€ãƒªã‚¹ãƒˆ1ã®ãƒ—ãƒã‚°ãƒ©ãƒ （show_nesting）を想定ã—ã¦ã¿ã¾ã—ょã†ã€‚ リスト1　関数
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Events
DTrace · objc.io
Show Objective-C class in DTrace output
GitHub - siuying/motion-dtrace: Proof of concept to use dtrace on rubymotion
http://ruby-dtrace.rubyforge.org/
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