| // Tarantool quick test | |
| // Copyright, Dennis Anikin 2016 | |
| // | |
| // Quick disclaimer: | |
| // | |
| // This test shows 500K-1000K transactions per second on one CPU core | |
| // and 600K-1600K queries per second on one CPU core. | |
| // | |
| // Based on the $6.57 per-month-price for the AWS t2.micro instance we can afford the tremendous number of 630bln queries for just $1 | |
| // |
In the below keyboard shortcuts, I use the capital letters for reading clarity but this does not imply shift, if shift is needed, I will say shift. So ⌘ + D does not mean hold shift. ⌘ + Shift + D does of course.
| Function | Shortcut |
|---|---|
| New Tab | ⌘ + T |
| Close Tab or Window | ⌘ + W (same as many mac apps) |
| Go to Tab | ⌘ + Number Key (ie: ⌘2 is 2nd tab) |
| Go to Split Pane by Direction | ⌘ + Option + Arrow Key |
| <?xml version="1.0" encoding="UTF-8"?> | |
| <config> | |
| <luceneMatchVersion>4.5</luceneMatchVersion> | |
| <dataDir>${solr.data.dir:}</dataDir> | |
| <directoryFactory name="DirectoryFactory" | |
| class="${solr.directoryFactory:solr.NRTCachingDirectoryFactory}" /> |
| docker ps | awk {' print $1 '} | tail -n+2 > tmp.txt; for line in $(cat tmp.txt); do docker kill $line; done; rm tmp.txt |
| 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 |
