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mattsplat's version from 2017-05-15 06:12

Access Times

Question Answer
L1 cache reference0.5ns
Branch mispredict5ns
L2 cache reference7ns
Mutex lock/unlock100ns
Main memory reference100ns
Compress 1Kb10,000ns
Send 2Kb over 1Gbps network20,000ns
Read 1MB sequentially from memory250,000ns
Round trip within same datacenter500,000ns
Disk seek10,000,000ns
Read 1MB sequentially from network10,000,000ns
Read 1MB sequentially from disk30,000,000ns
Send packet CA -> Netherlands -> CA150,000,000ns
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