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Dialogue: 0,0:00:07.08,0:00:10.58,Default,,0000,0000,0000,,You use Linux everyday whether you know it or not.
Dialogue: 0,0:00:10.58,0:00:14.95,Default,,0000,0000,0000,,Over eight hundred fifty thousand Android phones running Linux are activated
Dialogue: 0,0:00:14.95,0:00:19.08,Default,,0000,0000,0000,,every single day. Compare that to just thirty thousand Windows phones,
Dialogue: 0,0:00:19.08,0:00:21.07,Default,,0000,0000,0000,,according to the latest reports.
Dialogue: 0,0:00:21.07,0:00:24.14,Default,,0000,0000,0000,,That means one hundred Android devices have come online
Dialogue: 0,0:00:24.14,0:00:26.62,Default,,0000,0000,0000,,just since you started watching this video.
Dialogue: 0,0:00:26.62,0:00:30.33,Default,,0000,0000,0000,,Nearly seven hundred thousand televisions are sold in every day,
Dialogue: 0,0:00:30.33,0:00:32.46,Default,,0000,0000,0000,,most of which are running Linux.
Dialogue: 0,0:00:32.46,0:00:35.69,Default,,0000,0000,0000,,Eight out of ten financial trades are powered by Linux.
Dialogue: 0,0:00:35.69,0:00:40.29,Default,,0000,0000,0000,,Nine out of ten of the world super computers run Linux.
Dialogue: 0,0:00:40.29,0:00:45.22,Default,,0000,0000,0000,,Google, Twitter, Facebook and Amazon are all powered by Linux.
Dialogue: 0,0:00:45.22,0:00:50.17,Default,,0000,0000,0000,,So, how is Linux developed to achieve all of this? Unlike other operating systems,
Dialogue: 0,0:00:50.17,0:00:52.24,Default,,0000,0000,0000,,like Windows or iOS, Linux
Dialogue: 0,0:00:52.24,0:00:57.53,Default,,0000,0000,0000,,is built collaboratively, across companies, geographies, and markets,
Dialogue: 0,0:00:57.53,0:01:00.99,Default,,0000,0000,0000,,resulting in the largest collaborative development project in the history of
Dialogue: 0,0:01:00.99,0:01:06.38,Default,,0000,0000,0000,,computing. Just since two thousand five about eight thousand developers
Dialogue: 0,0:01:06.38,0:01:10.77,Default,,0000,0000,0000,,from almost eight hundred companies have contributed to the Linux kernel.
Dialogue: 0,0:01:10.77,0:01:15.50,Default,,0000,0000,0000,,These contributions have resulted in fifteen million lines of code. One point five
Dialogue: 0,0:01:15.50,0:01:19.27,Default,,0000,0000,0000,,million lines written in just the last couple of years.
Dialogue: 0,0:01:19.27,0:01:24.16,Default,,0000,0000,0000,,Consider that Homer's epic "Ilead" is a mere fifteen thousand lines of text.
Dialogue: 0,0:01:24.16,0:01:28.65,Default,,0000,0000,0000,,The novel "War and Peace" just five hundred sixty thousand words.
Dialogue: 0,0:01:28.65,0:01:31.74,Default,,0000,0000,0000,,But it's not just about the sheer number of lines code,
Dialogue: 0,0:01:31.74,0:01:35.20,Default,,0000,0000,0000,,it's also about how quickly Linux is developed and released.
Dialogue: 0,0:01:35.20,0:01:39.33,Default,,0000,0000,0000,,For example, a major new kernel comes out every two to three months.
Dialogue: 0,0:01:39.33,0:01:42.66,Default,,0000,0000,0000,,Compare this to years for competing operating systems.
Dialogue: 0,0:01:42.66,0:01:46.71,Default,,0000,0000,0000,,This is made possible by a unique collaborative development process.
Dialogue: 0,0:01:46.71,0:01:50.68,Default,,0000,0000,0000,,When submitting code to the Linux kernel, developers break changes into individual
Dialogue: 0,0:01:50.68,0:01:52.39,Default,,0000,0000,0000,,units called patches.
Dialogue: 0,0:01:52.39,0:01:56.08,Default,,0000,0000,0000,,The patch describes the lines that need to be changed, added, or removed from the
Dialogue: 0,0:01:56.08,0:01:57.02,Default,,0000,0000,0000,,source code.
Dialogue: 0,0:01:57.02,0:02:01.76,Default,,0000,0000,0000,,Each patch can add a new feature, new support for a device, fix a problem, improve
Dialogue: 0,0:02:01.76,0:02:05.18,Default,,0000,0000,0000,,performance, or rework things to be more easily understood.
Dialogue: 0,0:02:05.18,0:02:08.94,Default,,0000,0000,0000,,Developers post their patches to the relevant mailing lists where other developers can
Dialogue: 0,0:02:08.94,0:02:10.77,Default,,0000,0000,0000,,reply with feedback.
Dialogue: 0,0:02:10.77,0:02:13.16,Default,,0000,0000,0000,,When the patch is close to being release ready,
Dialogue: 0,0:02:13.16,0:02:17.37,Default,,0000,0000,0000,,it is accepted by a senior Linux kernel developer, or maintainer, who manages
Dialogue: 0,0:02:17.37,0:02:20.66,Default,,0000,0000,0000,,one or more of a one hundred different sections of the kernel.
Dialogue: 0,0:02:20.66,0:02:23.37,Default,,0000,0000,0000,,While this is not a guarantee that it will go to the main line,
Dialogue: 0,0:02:23.37,0:02:25.59,Default,,0000,0000,0000,,it is certainly a good sign.
Dialogue: 0,0:02:25.59,0:02:28.53,Default,,0000,0000,0000,,Here it gets an even more extensive evaluation.
Dialogue: 0,0:02:28.53,0:02:31.92,Default,,0000,0000,0000,,When the maintainer finishes their review, he or she will sign off on the
Dialogue: 0,0:02:31.92,0:02:36.02,Default,,0000,0000,0000,,patch and send it on to Linux creator, and Linux Foundation Fellow, Linus Torvalds,
Dialogue: 0,0:02:36.02,0:02:39.72,Default,,0000,0000,0000,,who has the ultimate authority on what is accepted into the next
Dialogue: 0,0:02:39.72,0:02:44.38,Default,,0000,0000,0000,,release and what is not. Nearly ten thousand patches go into almost
Dialogue: 0,0:02:44.38,0:02:46.07,Default,,0000,0000,0000,,every new release.
Dialogue: 0,0:02:46.07,0:02:49.82,Default,,0000,0000,0000,,About six patches are applied to the kernel each hour.
Dialogue: 0,0:02:49.82,0:02:53.66,Default,,0000,0000,0000,,Linux's rate of development is simply unmatched.
Dialogue: 0,0:02:53.66,0:02:58.96,Default,,0000,0000,0000,,Today, Linux is dominating on mobile device, in the enterprise and web infrastructure,
Dialogue: 0,0:02:58.96,0:03:02.01,Default,,0000,0000,0000,,data centers, supercomputing, and more.
Dialogue: 0,0:03:02.01,0:03:11.00,Default,,0000,0000,0000,,What's next? Because together, we are ready.