---
aliases: 
tags:
  - maturity/🌱
date: 2024-11-04
---
```
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns  = 250 µs
Round trip within same datacenter ...... 500,000 ns  = 0.5 ms
Read 1 MB sequentially from SSD* ..... 1,000,000 ns  =   1 ms
Disk seek ........................... 10,000,000 ns  =  10 ms
Read 1 MB sequentially from disk .... 20,000,000 ns  =  20 ms
Send packet CA->Netherlands->CA .... 150,000,000 ns  = 150 ms
```

![[../../meta/files/images/Pasted image 20241104204304.png]]
***
## Мета информация
**Область**:: [[../../meta/zero/00 Разработка|00 Разработка]]
**Родитель**:: 
**Источник**:: 
**Создана**:: [[2024-11-04]]
**Автор**:: 
### Дополнительные материалы
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### Дочерние заметки
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