| # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to | |
| # newer versions of the distribution. | |
| deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted | |
| # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic main restricted | |
| ## Major bug fix updates produced after the final release of the | |
| ## distribution. | |
| deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted | |
| # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted |
MIT License
Copyright (c) [year] [fullname]
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
| 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 |