注意:
- 何故か"item"を"要素"と訳しているところが多いです
これまでの章:
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 |
install PostgreSQL 9 in Mac OSX via Homebrew | |
Mac OS X Snow Leopard | |
System Version: Mac OS X 10.6.5 | |
Kernel Version: Darwin 10.5.0 | |
Install notes for PostgreSQL 9.0.1 install using Homebrew: | |
sh-3.2# brew install postgresql |