Archive

2026  5

September  1

Blocking and Non-Blocking I/O on Linux: From File Descriptors to epoll

September 12, 2026 · 23 min · 4805 words · Khanh Bui

July  1

Go Scheduler

July 11, 2026 · 12 min · 2370 words · Khanh Bui

April  3

Postgres Batch Insert Benchmark

April 19, 2026 · 15 min · 3058 words · Khanh Bui

Postgres: How Many Connections to Open? Benchmark

April 11, 2026 · 8 min · 1661 words · Khanh Bui

Postgres Locking Internals: Comparing UPDATE and SELECT ... FOR UPDATE

April 6, 2026 · 10 min · 1991 words · Khanh Bui

2025  3

October  1

Overview of HDD and SSD

October 26, 2025 · 3 min · 568 words · Khanh Bui

April  1

Envelop Encryption

April 11, 2025 · 5 min · 966 words · Khanh Bui

January  1

Postgres Advisory Locks

January 20, 2025 · 6 min · 1277 words · Khanh Bui

2024  3

November  1

Postgres Collation

November 13, 2024 · 9 min · 1903 words · Khanh Bui

August  1

What does it mean to listen on localhost:8080?

August 1, 2024 · 7 min · 1456 words · Khanh Bui

May  1

The pointer receiver and value receiver in Go are just syntax sugar

May 21, 2024 · 4 min · 755 words · Khanh Bui

2023  1

September  1

Why would sometimes 0.1 + 0.2 equals to 0.3, but sometimes it’s not in Go

September 10, 2023 · 5 min · 971 words · Khanh Bui

2022  10

December  1

A Note About Rust Smart Pointer and Deref

December 11, 2022 · 4 min · 823 words · Khanh Bui

September  2

Floyd’s cycle detection

September 17, 2022 · 3 min · 436 words · Khanh Bui

Disjoin-Set/Union-Find notes

September 3, 2022 · 4 min · 773 words · Khanh Bui

August  2

Which operator is faster: like vs =

August 21, 2022 · 6 min · 1223 words · Khanh Bui

Postgres Timezone

August 20, 2022 · 3 min · 553 words · Khanh Bui

June  1

A note in SSL/TLS

June 5, 2022 · 5 min · 876 words · Khanh Bui

May  1

Is NodeJS really single-threaded?

May 28, 2022 · 2 min · 236 words · Khanh Bui

March  1

HashCode VS Equals

March 27, 2022 · 4 min · 800 words · Khanh Bui

January  2

B tree, B+ tree, and indexing in database

January 9, 2022 · 4 min · 725 words · Khanh Bui

Isolation Level and Read Phenomena

January 2, 2022 · 3 min · 639 words · Khanh Bui

2021  2

December  2

ACID

December 8, 2021 · 2 min · 251 words · Khanh Bui

What happens when you use a browser to access google.com

December 7, 2021 · 3 min · 520 words · Khanh Bui