More Related Content Similar to SQL or NoSQL, that is the question! (20) More from Andraz Tori (10) SQL or NoSQL, that is the question!1. SQL or NoSQL, that is the question! October 2011 Andraž Tori, CTO at Zemanta @andraz andraz@zemanta.com 11. You are a big tech company, located on west coast of USA 18. Numbers everybody should know! Jeff Dean at famous Stanford talk 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 w/ cheap algorithm 3,000 ns Send 2K bytes over 1 Gbps network 20,000 ns Read 1 MB sequentially from memory 250,000 ns Round trip within same datacenter 500,000 ns Disk seek 10,000,000 ns Read 1 MB sequentially from disk 20,000,000 ns Send packet CA->Netherlands->CA 150,000,000 ns 37. At the core, it's a different set of trade-offs and operational constraints 45. … you already are eventually consistent! :) If your database stores how many vases you have in your shop... 48. There's not even a proper taxonomy of features different NoSQL solutions offer 89. And if you don't take anything else from this presentation... Editor's Notes Kaj sploh je Silicijeva Dolina? Zakaj se to sploh sprašujemo? Mislijo politiki dobesedno? Povedal bom o pozitivnih straneh. V bistvu sem hotel povedati drugo zgodbo