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negrinho / latency.txt
Created Jul 16, 2018 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
View latency.txt
Latency Comparison Numbers Simplified (~2012)
---------------------------------- log2 log10
L1 cache reference 0 0 ~ 1 ns
Branch mispredict 3 1
L2 cache reference 4 1
Mutex lock/unlock 6 2
Main memory reference 8 2
Compress 1K bytes with Zippy 13 4
Send 1K bytes over 1 Gbps network 14 4
Read 4K randomly from SSD* 18 5
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