Данная пошаговая инструкция поможет освоить основы на простом примере
Для справки
Сервер поднимался на Debian 8 c характеристиками:
CPU - 1 ядро x 500 МГц
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
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
| { | |
| "printWidth": 100, | |
| "tabWidth": 2, | |
| "useTabs": false, | |
| "semi": true, | |
| "singleQuote": true, | |
| "trailingComma": "all", | |
| "bracketSpacing": true, | |
| "jsxBracketSameLine": false, | |
| "arrowParens": "avoid", |