BillAtHRST
BillAtHRST
/ latency.txt
Created
May 31, 2012 16:21
— forked from jboner/latency.txt
Latency numbers every programmer should know
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| "Magic" Numbers | |
| Operation Time (us) Source | |
| L1 cache reference 0.0005 2,3 | |
| Execute typical instruction 0.0010 2,3 | |
| Branch mispredict 0.0050 2,3 | |
| Propagation delay in fiber-optic cable, per meter 0.0050 5 | |
| L2 cache reference 0.0070 2,3 | |
| Mutex lock/unlock (uncontested) 0.0250 2,3 | |
| Decode FAST message 0.0500 5 |