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zakiafada32
/ semantic-commit-messages.md
Created
September 20, 2022 15:07
— forked from joshbuchea/semantic-commit-messages.md
Semantic Commit Messages
zakiafada32
/ latency.txt
Created
April 17, 2022 07:17
— forked from jboner/latency.txt
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 |