✪ rqworker --db 10 default high
16:06:30 RQ worker started, version 0.3.7
16:06:30
16:06:30 *** Listening on default, high...
16:06:49 high: jobs.multiply(5, 2) (2df52ba2-bd32-4849-a8e1-c5241c78b542)
16:06:49 Job OK, result = 10
Qi kitianFresh
hellerbarde
/ latency.markdown
Created
May 31, 2012 13:16
— forked from jboner/latency.txt
Latency numbers every programmer should know
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns
Compress 1K bytes with Zippy ............. 3,000 ns = 3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns = 20 µs
SSD random read ........................ 150,000 ns = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs