Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Thinktecture Webinar: Web-API mit Turbo:Deep-d...
Search
Sebastian Gingter
February 16, 2022
Programming
0
980
Thinktecture Webinar: Web-API mit Turbo: Deep-dive in async/await für Backend-APIs
Slides for my webinar.
Sebastian Gingter
February 16, 2022
Tweet
Share
More Decks by Sebastian Gingter
See All by Sebastian Gingter
From Zero to Hero: How to put GPT LLMs & Friends into your Applications
phoenixhawk
0
45
DWX 2025 - Talk to your data
phoenixhawk
0
8
BASTA! Spring 2025 - Halluzinationen, Prompt Injections & Co.
phoenixhawk
0
79
SEACON 2024 - Talk to your Data
phoenixhawk
0
99
MLCon 2024 - Bootcamp: Conquer and Rule Generative AI
phoenixhawk
0
130
InfoDays Generative AI für Developer 2024
phoenixhawk
0
98
EKON 2024 - Prompt Injections, Halluzinationen und Co.
phoenixhawk
0
82
EKON 2024: Real World RAG mit eigenen Daten und Dokumenten
phoenixhawk
0
120
Gen AI Engineering Days - Prompt Injections, Hallucinations and More
phoenixhawk
0
130
Other Decks in Programming
See All in Programming
Goで作る、開発・CI環境
sin392
0
260
20250704_教育事業におけるアジャイルなデータ基盤構築
hanon52_
5
1.1k
リバースエンジニアリング新時代へ! GhidraとClaude DesktopをMCPで繋ぐ/findy202507
tkmru
3
960
PHP 8.4の新機能「プロパティフック」から学ぶオブジェクト指向設計とリスコフの置換原則
kentaroutakeda
2
1k
Git Sync を超える!OSS で実現する CDK Pull 型デプロイ / Deploying CDK with PipeCD in Pull-style
tkikuc
4
350
初学者でも今すぐできる、Claude Codeの生産性を10倍上げるTips
s4yuba
16
13k
NEWT Backend Evolution
xpromx
1
140
Hack Claude Code with Claude Code
choplin
7
2.5k
ふつうの技術スタックでアート作品を作ってみる
akira888
1
1.3k
ご注文の差分はこちらですか? 〜 AWS CDK のいろいろな差分検出と安全なデプロイ
konokenj
3
580
RailsGirls IZUMO スポンサーLT
16bitidol
0
200
ISUCON研修おかわり会 講義スライド
arfes0e2b3c
1
470
Featured
See All Featured
Side Projects
sachag
455
42k
The Power of CSS Pseudo Elements
geoffreycrofte
77
5.9k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
Code Reviewing Like a Champion
maltzj
524
40k
BBQ
matthewcrist
89
9.7k
Building an army of robots
kneath
306
45k
Optimising Largest Contentful Paint
csswizardry
37
3.3k
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
Building a Scalable Design System with Sketch
lauravandoore
462
33k
A Tale of Four Properties
chriscoyier
160
23k
Faster Mobile Websites
deanohume
308
31k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
21k
Transcript
None
2 Deep-dive in async/await bei Backend-APIs ▪ 🐻💬 ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ Twitter:
3 ▪ ▪ ▪ ▪ ▪ Deep-dive in async/await bei
Backend-APIs
4 ▪ ▪ ▪ ▪ ▪ ▪ Deep-dive in async/await
bei Backend-APIs
5 Deep-dive in async/await bei Backend-APIs Nein, aber effizienter!
6 Deep-dive in async/await bei Backend-APIs
7 ▪ ▪ ▪ ▪ ▪ ▪ ▪ Deep-dive in
async/await bei Backend-APIs
8 Deep-dive in async/await bei Backend-APIs Kern 1 Kern 2
Kern 3 Kern 4 P2 T1 P2 T2 P3 T1 P1 T2 P3 T2 OS Scheduler P1 T1
9 • • • ▪ ▪ ▪ ▪ ▪ Deep-dive
in async/await bei Backend-APIs * Zahlen für Windows, Quelle: “Windows Internals“, Solomin, Russinovich et al. Jeffrey Richter sagt hingegen: 30 ms in Windows, Linux hat andere Zeiten…
10 • • • • • • • • •
• Deep-dive in async/await bei Backend-APIs
11 Deep-dive in async/await bei Backend-APIs Kern 1 Kern 2
Kern 3 Kern 4 P2 T1 P2 T2 P3 T1 P1 T1 P3 T2 P1 T2 Kontext- Wechsel Kontext- & Prozess- Wechsel
12 • • • • • • • • •
Deep-dive in async/await bei Backend-APIs
13 Deep-dive in async/await bei Backend-APIs ALU & FPU Registers
0 Registers 1 CPU Core with Hyper-Threading Classic CPU Core
14 Deep-dive in async/await bei Backend-APIs Kern 1 Kern 2
Kern 3 Kern 4 P2 T1 P2 T2 MyProc T1 P1 T2 P1 T1 MyProc T2 MyProc T3 MyProc T4 MyProc T5 MyProc T7 MyProc T6
15 Deep-dive in async/await bei Backend-APIs • • • Quelle:
“Systems Performance: Enterprise and the Cloud“, 2013, Brendan Gregg, Pearson Verlag
16 Deep-dive in async/await bei Backend-APIs • • • •
• •
17 Deep-dive in async/await bei Backend-APIs
18 ▪ ▪ ▪ ▪ ▪ ▪ ⏳ ▪ ▪
▪ Deep-dive in async/await bei Backend-APIs ReadFile API: https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-readfile
19 ▪ ▪ ▪ ▪ ▪ ▪ ⏳ ▪ Deep-dive
in async/await bei Backend-APIs ReadFile API: https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-readfile
20 Deep-dive in async/await bei Backend-APIs
21 Deep-dive in async/await bei Backend-APIs • • IAsyncResult BeginSomething()
• EndSomething(result) • • DoSomethingAsync() • event SomethingCompleted • • Task[<T>] DoSomethingAsync() P
22 Deep-dive in async/await bei Backend-APIs
23 • • • • • • .ContinueWith() • Deep-dive
in async/await bei Backend-APIs
24 Deep-dive in async/await bei Backend-APIs Task Task-Liste Threadpool T1
Threadpool T2 Kern 1 Kern 3 Kern 2 Kern 4 Threadpool T3 Threadpool T4 Threadpool Management Jeder Pool-Thread arbeitet Tasks in einer Endlosschleife ab Completed Tasks
25 • • • • • 🤯 • • Deep-dive
in async/await bei Backend-APIs
26 Deep-dive in async/await bei Backend-APIs
27 • • async Task<> MyMethodAsync() • • • await
OtherMethodAsync() • • await • • • • Deep-dive in async/await bei Backend-APIs E
28 Deep-dive in async/await bei Backend-APIs
29 Deep-dive in async/await bei Backend-APIs P
30 • • task.GetAwaiter().GetResult() → ❌ • Thread.Sleep() → ❌
• await Task.Delay() → ✔ • Thread.SpinWait() • → ❌ • → ✔ Deep-dive in async/await bei Backend-APIs
31 • • var task1 = DoSomethingAsync(); var task2 =
DoSomethingElseAsync(); await Task.WhenAll(task1, task2); • • • Task.Factory.StartNew(…, TaskCreationOptions.LongRunning); • • • Deep-dive in async/await bei Backend-APIs
32 • • • • Deep-dive in async/await bei Backend-APIs
33 Deep-dive in async/await bei Backend-APIs
34 ▪ ▪ ▪ ▪ ▪ ▪ Deep-dive in async/await
bei Backend-APIs
35 ▪ ▪ ▪ ▪ ▪ 😉 Deep-dive in async/await
bei Backend-APIs P
None