Operation | Timing |
---|---|
execute typical instruction | 1/1,000,000,000 sec = 1 nanosec |
fetch from L1 cache memory | 0.5 nanosec |
branch misprediction | 5 nanosec |
fetch from L2 cache memory | 7 nanosec |
Mutex lock/unlock | 25 nanosec |
fetch from main memory | 100 nanosec |
send 2K bytes over 1Gbps network | 20,000 nanosec |
read 1MB sequentially from memory | 250,000 nanosec |
fetch from new disk location (seek) | 8,000,000 nanosec |
read 1MB sequentially from disk | 20,000,000 nanosec |
send packet US to Europe and back | 150 milliseconds = 150,000,000 nanosec |
uohzxela/fundamentals
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