Results of My Work

Mercari, Inc. Summer Internship for Engineer 2019

Transcript

1. Results of My Work Shu TAKAYAMA @ SRE
2. About Me • Shu TAKAYAMA @ SRE • Math & CS Student • @azonti • https://github.com/azonti
3. Task 1: To cut AnonDB’s network traffic cost
6. Implemented Compression Function to WebSocket Tunnel
8. • Compression Ratio: 50% ◦ Halved Traffic Cost • Tunneling Client CPU Usage: 364-699% of Old Version • Tunneling Server CPU Usage: 57-62% of Old Version
9. Task 2: To evaluate how fast Fast Secure-Endpoint
10. Mercari API’s Authentication Methods: • Using Global Access Token(GAT) • Using Mercari Access Token(MAT) ◦ →Implemented by Normal Endpoint • Using Service Account ◦ →Implemented by Secure-Endpoint
12. To evaluate how fast Fast Secure-Endpoint
14. Throughput Ratio • In Low-Load Env.: 346% • In High-Load Env.: 180%
15. • Calculated the Lowest Hit Rate where PAT Caching Saves Time • PAT is Currently Using ECDSA... ◦ But, which is faster, ECDSA vs RSA?
16. Task 1: To cut AnonDB’s traffic cost Task 2: To evaluate how fast Fast Secure-Endpoint
17. Any Questions?
18. ↓ボツ
25. • 1キャッシュヒットで30μs削減 • 1キャッシュサーチで0.2-1.2μs増加 • キャッシュが速度向上に貢献する最低ヒット率は0.7-4.0%