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Originally: | |
https://gist.github.com/7565976a89d5da1511ce | |
Hi Donald (and Martin), | |
Thanks for pinging me; it's nice to know Typesafe is keeping tabs on this, and I | |
appreciate the tone. This is a Yegge-long response, but given that you and | |
Martin are the two people best-situated to do anything about this, I'd rather | |
err on the side of giving you too much to think about. I realize I'm being very | |
critical of something in which you've invested a great deal (both financially |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |