Status - Just to know where to see quickly.
What |
ns |
µs |
L1 cache reference |
0.5 |
0.00005 |
Main memory reference |
100 |
0.01 |
Compress 1K bytes w/ cheap algorithm |
3,000 |
3 |
Compress 1K bytes with Zippy |
3,000 |
3 |
Send 2K bytes over 1 Gbps network |
20,000 |
20 |
SSD random read |
150,000 |
150 |
Read 1 Mb sequentially from memory |
250,000 |
250 |
Round trip within same datacenter |
500,000 |
500 |
Read 1 Mb sequentially from network |
10,000,000 |
10,000 |
Read 1 Mb sequentially from disk |
30,000,000 |
30,000 |
Send packet CA → Netherlands → CA |
150,000,000 |
150,000 |
Sources: