z7pz
/ replit-nodejs-v16.js
Created
August 9, 2021 23:09
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| const { execSync } = require('child_process'); | |
| const version = process.versions.node.split('.')[0]; | |
| console.log(process.env.NODE_VERSION); | |
| (async () => { | |
| console.info('[LOG]: CHECKING NODE VERSION...') | |
| if (version == '16') { | |
| console.info(`[LOG]: NODE VERSION IS ${version}`) | |
| } else { |
z7pz
/ tsconfig.json
Created
August 3, 2021 22:51
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| // NEED "src" FILE IN SAME DIR. | |
| { | |
| "compilerOptions": { | |
| "target": "ES3", | |
| "module": "commonjs", | |
| "declaration": true, | |
| "allowSyntheticDefaultImports": true, | |
| "allowJs": false, | |
| "experimentalDecorators": true, |
jboner
/ latency.txt
Last active
December 12, 2025 04:24
Latency Numbers Every Programmer Should Know
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| 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 |