Time Appliances Project: Difference between revisions
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==Project Leadership== | ==Project Leadership== | ||
:- Lead: [mailto:ahmad.byagowi@ocproject.net Ahmad Byagowi, Ph.D.] (OCP TAP / Facebook) | |||
: | :- Incubation Committee: [mailto:elad.wind@ocproject.net Elad Wind] (OCP / NVIDIA) | ||
:- [mailto:elad@ | |||
=== Workstreams === | === Workstreams === | ||
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! Project !! Objective !! POC !! Meeting Schedule | ! Project !! Objective !! POC !! Meeting Schedule | ||
|- | |- | ||
| #1 | | '''#1''' | ||
| Open | | Open Time Server | ||
| Development of an open | | Development of an open time server for DC and Edge systems | ||
| [mailto:leoleovich@fb.com Oleg Obleukhov] & <br> [mailto:dotanl@nvidia.com Dotan Levi] | | [mailto:leoleovich@fb.com Oleg Obleukhov] & <br> [mailto:dotanl@nvidia.com Dotan Levi] | ||
| rowspan="4" | discussed during project calls | | rowspan="4" | discussed during project calls | ||
|- | |- | ||
| #2 | | '''#2''' | ||
| Data Center PTP Profile | | Data Center PTP Profile | ||
| Development of a PTP Profile tailored for data center applications | | Development of a PTP Profile tailored for data center applications | ||
| [mailto:michelouellette@fb.com Michel Ouellette] | | [mailto:michelouellette@fb.com Michel Ouellette] | ||
|- | |- | ||
| #3 | | '''#3''' | ||
| Precision Time API | | Precision Time API | ||
| Time APIs to disseminate the time error (error bound) and bring accurate time to the user space | | Time APIs to disseminate the time error (error bound) and bring accurate time to the user space | ||
| [mailto:gemicha@gmail.com Georgi Chalakov] | | [mailto:gemicha@gmail.com Georgi Chalakov] | ||
|- | |- | ||
| #4 | | '''#4''' | ||
| Oscillators | | Oscillators | ||
| Classification and measuring of oscillators | | Classification and measuring of oscillators | ||
| [mailto:ggiust@sitime.com Gary Giust] | | [mailto:ggiust@sitime.com Gary Giust] | ||
|} | |} | ||
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==Documents== | ==Documents== | ||
:- | :- [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/files/c6eee7bea1d297fe82bd18a7f38dfb1806ec1806.pdf Charter] | ||
:- [https://github.com/opencomputeproject/Time-Appliance-Project TAP GitHub] | |||
:- [https://drive.google.com/drive/folders/1EDE9Pj1eZj2sF7fUGOnVmwGTf4U6yonr?usp=sharing Google Drive Document Repository] | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Name !! Format !! Version !! Date | ! Worstream !! Name !! Format !! Version !! Date | ||
|- | |||
| rowspan="3" style="text-align:center;" |'''#1''' | |||
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server Open Time Server] | |||
| Reference Architecture | |||
| v1 | |||
| July 28, 2021 | |||
|- | |||
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card Time Card] | |||
| Spec and design package | |||
| v1 | |||
| July 28, 2021 | |||
|- | |- | ||
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/ | | [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Software TAP Software] | ||
| | | Software | ||
| | | | ||
| | | July 28, 2021 | ||
|- | |- | ||
| [https:// | | style="text-align:center;" | '''#2''' | ||
| | | [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/DC-PTP-Profile Data Center PTP Profile] | ||
| | | Spec | ||
| | | v1 | ||
| August 31, 2021 | |||
|- | |- | ||
|} | |} | ||
==Regular Project Calls== | ==Regular Project Calls== | ||
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United States: +1 571 317-3129 | United States: +1 571 317-3129 | ||
Access Code: 565-185-493 | Access Code: 565-185-493 | ||
==Upcoming Calls== | |||
{| class="wikitable" | |||
|- | |||
! | |||
! Date !! Topics !! Speakers | |||
|- | |||
| #36 | |||
| <font color="green">Dec-1, 2021</font> | |||
| <font color="green">Application of Physical Layer Synchronization/Syntonization in a Data Center Environment</font> | |||
| <font color="green">Med Belhadj</font> | |||
|- | |||
|- | |||
| #35 | |||
| <font color="green">Nov-17, 2021</font> | |||
| <font color="green">Oscillator Workstream Update</font> | |||
| <font color="green">Gary Guist, Ph.D.</font> | |||
|- | |||
|- | |||
| #34 | |||
| <font color="green">Nov-3, 2021</font> | |||
| <font color="green">Sync for Virtualized Software</font> | |||
| <font color="green">Dotan Levi</font> | |||
|- | |||
|- | |||
| #33 | |||
| <font color="green">Oct-20, 2021</font> | |||
| <font color="green"></font> | |||
| <font color="green">Lasse Johnsen</font> | |||
|- | |||
|- | |||
| #32 | |||
| <font color="green">Oct-6, 2021</font> | |||
| <font color="green">Validating PTP follower clock accuracy</font> | |||
| <font color="green">Alon Regev</font> | |||
|- | |||
|} | |||
==Recordings from Past Calls== | ==Recordings from Past Calls== | ||
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! Date !! Topics !! Speakers !! Slides | ! Date !! Topics !! Speakers !! Slides | ||
|- | |||
| #31 | |||
| Sep 22, 2021 | |||
| [https://www.youtube.com/watch?v=nwbPtG6f7eI Transparent Clock and its Applications] | |||
| Amit Oren | |||
| [https://drive.google.com/file/d/1gB8uSXkX4OV7yNYUdg8JLFqNeYwYG3Et/view?usp=sharing Slides] | |||
|- | |||
| #30 | |||
| Sep 8, 2021 | |||
| [https://www.youtube.com/watch?v=vj2nM9N7F9g Miniaturized Rubidium Oscillator With The Lowest SWAP Based on Double Resonance] | |||
| Christian S. Ph.D., Stavros M. Ph.D., Jean-Arnold C | |||
| [https://drive.google.com/file/d/1Uap6vcQyrY-X9sWkjE3IZCxdaWHTnWET/view?usp=sharing Slides] | |||
|- | |||
| #29 | |||
| Aug 25, 2021 | |||
| [https://www.youtube.com/watch?v=MUhEbmjAweA Fearless Global Transactions using Clock Synchronization in CockroachDB] | |||
| Nathan VanBenschoten | |||
| [https://drive.google.com/file/d/1otcpgZa4eXwfkcTTRgiOT_SqrkogOeZh/view?usp=sharing Slides] | |||
|- | |||
| #28 | |||
| Aug 11, 2021 | |||
| [https://www.youtube.com/watch?v=4MAMxTgp-gg White Rabbit High Accuracy Timing] | |||
| Francisco Girela Lopez, Ph.D. | |||
| [https://drive.google.com/file/d/1lj6lauC6XSzPOqteTLr3M6aSRkKgufEO/view?usp=sharing Slides] | |||
|- | |||
| #27 | |||
| Jul-28, 2021 | |||
| [https://www.youtube.com/watch?v=AUU0A9gVkvw Sundial: Fault-tolerant Clock Synchronization for Datacenters] | |||
| Gautam Kumar & Yuliang Li, Ph.D. | |||
| [https://drive.google.com/file/d/11caMgoSODkOvsl2gNF-dGna3dNJXdrCX/view?usp=sharing Slides] | |||
|- | |||
| #26 | |||
| Jul-14, 2021 | |||
| [https://www.youtube.com/watch?v=NlZnbndnL_A Holdover Challenges in NIC Based Boundary Clocks] | |||
| Eyal Cohen | |||
| [https://docs.google.com/presentation/d/1AtLNeFJ-j1lYHvAYR4TOdZ48U9hh34WX/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides] | |||
|- | |||
| #25 | |||
| Jun-30, 2021 | |||
| [https://www.youtube.com/watch?v=xu1EtozIakY GNSS Anti-Jamming and Spoof Mitigation] | |||
| Benoit Krummenacker | |||
| [https://drive.google.com/file/d/1PHNCSBq2IndOxIK29MsHthadiUbP9NcE/view?usp=sharing Slides] | |||
|- | |||
| #24 | |||
| Jun-16, 2021 | |||
| [https://www.youtube.com/watch?v=E-x939MMV3A Introduction to IEEE1588-2019] | |||
| Doug Arnold, Ph.D. | |||
| [https://drive.google.com/file/d/1tBimVperDldY4cIMY0wbjvVZYbvXCLjn/view?usp=sharing Slides] | |||
|- | |||
| #23 | |||
| Jun-2, 2021 | |||
| Introduction to MAC and CSACs | |||
| Robert Lutwak, Ph.D. | |||
| [https://drive.google.com/file/d/1VYnkZlWSSs66f9x9BA-5Nza-myv3w3Qz/view?usp=sharing Slides] | |||
|- | |||
| #22 | |||
| May-19, 2021 | |||
| [https://www.youtube.com/watch?v=G_vRHOExcTA Open Synchronization implementations on Linux/k8s Clusters] | |||
| Timo Jokiaho & Pasi Vaananen | |||
| [https://drive.google.com/file/d/1qU87Fys2wDBNK_3kyylwOCW1J752IPzi/view?usp=sharing Slides] | |||
|- | |||
| #21 | |||
| May-5, 2021 | |||
| [https://www.youtube.com/watch?v=pqTsCFM6lCo White Rabbit: An Accurate Time and Frequency Transfer over Ethernet] | |||
| Maciej Lipinski, Ph.D. | |||
| [https://drive.google.com/file/d/14x5HVGhhRivVNs1JYO1kPvsthuuP-Kce/view?usp=sharing Slides] | |||
|- | |||
| #20 | |||
| Apr-21, 2021 | |||
| [https://www.youtube.com/watch?v=gizVwrBegYo Time Scale Ensembles in Uncertain Environments] | |||
| rowspan="2" | Marc A. Weiss, Ph.D. | |||
| [https://drive.google.com/file/d/1ERLlsJz70t8_GDSlVnDEOCxqWWYO7jYd/view?usp=sharing Slides] | |||
|- | |- | ||
| #19 | | #19 | ||
| Apr-7, 2021 | | Apr-7, 2021 | ||
| [ Clock and Oscillator Statistics and Characterization Techniques | | [https://www.youtube.com/watch?v=rSsSAlP2eIA Clock and Oscillator Statistics and Characterization Techniques] | ||
| [https://drive.google.com/file/d/1V8zDETnZX_PjxGYog8bKgokKqnUjR95X/view?usp=sharing Slides] | |||
| [https://drive.google.com/file/d/ | |||
|- | |- | ||
| #18 | | #18 | ||
| Mar-24, 2021 | | Mar-24, 2021 | ||
| [https://www.youtube.com/watch?v=5zMdYlPipXU Introduction to Project Corundum for Time services] | | [https://www.youtube.com/watch?v=5zMdYlPipXU Introduction to Project Corundum for Time services] | ||
| Alex Forencich | | Alex Forencich, Ph.D. | ||
| [https://drive.google.com/file/d/1GsFh9jlnloI6f7JOSQjV66LTi2o07BXD/view?usp=sharing Slides] | | [https://drive.google.com/file/d/1GsFh9jlnloI6f7JOSQjV66LTi2o07BXD/view?usp=sharing Slides] | ||
|- | |- | ||
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| Mar-10, 2021 | | Mar-10, 2021 | ||
| [https://www.youtube.com/watch?v=cYNAyCC53sc Oscillators Classification, <B>Workstream #4</B> goals and kickoff] | | [https://www.youtube.com/watch?v=cYNAyCC53sc Oscillators Classification, <B>Workstream #4</B> goals and kickoff] | ||
| | | Gary Giust, Ph.D. | ||
| [https://drive.google.com/file/d/1O2iMLKKRqtesziBLPQ9PTh23Yyg_Efx2/view?usp=sharing Slides] | | [https://drive.google.com/file/d/1O2iMLKKRqtesziBLPQ9PTh23Yyg_Efx2/view?usp=sharing Slides] | ||
|- | |- | ||
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| Jan-27, 2021 | | Jan-27, 2021 | ||
| [https://www.youtube.com/watch?v=-uNaQENycMA Huygens and its Applications] | | [https://www.youtube.com/watch?v=-uNaQENycMA Huygens and its Applications] | ||
| | | Balaji Prabhakar, Ph.D. | ||
| | | | ||
|- | |- | ||
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| Jan-13, 2021 | | Jan-13, 2021 | ||
| [https://www.youtube.com/watch?v=N9KoaOonvzM TAP 2020 Recap, 2021 Plans] | | [https://www.youtube.com/watch?v=N9KoaOonvzM TAP 2020 Recap, 2021 Plans] | ||
| | | Ahmad Byagowi, Ph.D. | ||
| [https://drive.google.com/file/d/1H16HOlaNx4C72A3odW-Lc4_F-yrDAi_M/view?usp=sharing Slides] | | [https://drive.google.com/file/d/1H16HOlaNx4C72A3odW-Lc4_F-yrDAi_M/view?usp=sharing Slides] | ||
|- | |- | ||
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| Dec-16, 2020 | | Dec-16, 2020 | ||
| [https://www.youtube.com/watch?v=Niu5pQ6QZ88 Chip Scaled Atomic Clocks] | | [https://www.youtube.com/watch?v=Niu5pQ6QZ88 Chip Scaled Atomic Clocks] | ||
| | | John Kitching, Ph.D. | ||
| [https://drive.google.com/file/d/1wbp7ZlPDmCtxvjqx0dyiY8MA9jOz75bu/view?usp=sharing Slides] | | [https://drive.google.com/file/d/1wbp7ZlPDmCtxvjqx0dyiY8MA9jOz75bu/view?usp=sharing Slides] | ||
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| Dec-2, 2020 | | Dec-2, 2020 | ||
| [https://www.youtube.com/watch?v=rVZbEKOE6jo Data Center PTP Profile, <B>Workstream #2</B> proposal] | | [https://www.youtube.com/watch?v=rVZbEKOE6jo Data Center PTP Profile, <B>Workstream #2</B> proposal] | ||
| | | Michel Ouellette | ||
| | | | ||
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| Nov-18, 2020 | | Nov-18, 2020 | ||
| [https://www.youtube.com/watch?v=-_cdud9nSgA Computer Timekeeping and Synchronization] | | [https://www.youtube.com/watch?v=-_cdud9nSgA Computer Timekeeping and Synchronization] | ||
| Kevin Stanton, Ph.D. | | Kevin Stanton, Ph.D. | ||
| [https://drive.google.com/file/d/12J7785mAmjNo9TsI3jZ11-QuRsDDDIIO/view?usp=sharing Slides] | | [https://drive.google.com/file/d/12J7785mAmjNo9TsI3jZ11-QuRsDDDIIO/view?usp=sharing Slides] | ||
|- | |- | ||
| #9 | | #9 | ||
| Nov-4, 2020 | | Nov-4, 2020 | ||
| [https://www.youtube.com/watch?v=rUDHKJCI3n4 Time Sync in TSNs] | | [https://www.youtube.com/watch?v=rUDHKJCI3n4 Time Sync in TSNs] (History of TSN, IEEE 802.1AS Overview) | ||
| Hesham ElBakoury | |||
| | |||
| [https://drive.google.com/file/d/1y1ds3bGuJcNRlHgVnmjQGeXhCfZ5sy4q/view?usp=sharing Slides] | | [https://drive.google.com/file/d/1y1ds3bGuJcNRlHgVnmjQGeXhCfZ5sy4q/view?usp=sharing Slides] | ||
|- | |- | ||
| #8 | | #8 | ||
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| Oct-7, 2020 | | Oct-7, 2020 | ||
| [https://www.youtube.com/watch?v=FIuazsKx7VY&feature=youtu.be Timing card implementation] | | [https://www.youtube.com/watch?v=FIuazsKx7VY&feature=youtu.be Timing card implementation] | ||
| | | Ahmad Byagowi, Ph.D. | ||
| | | | ||
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| Sep-23, 2020 | | Sep-23, 2020 | ||
| [https://www.youtube.com/watch?v=Xzh3JUzbz4I Practical Use Cases of Synchronized Clocks] | | [https://www.youtube.com/watch?v=Xzh3JUzbz4I Practical Use Cases of Synchronized Clocks] | ||
| | | Georgi Chalakov | ||
| | | | ||
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| Sep-9, 2020 | | Sep-9, 2020 | ||
| [https://www.youtube.com/watch?v=5XJXEztSDl4 Data Center PTP Profile, <B>Workstream #2</B> goals and draft spec] | | [https://www.youtube.com/watch?v=5XJXEztSDl4 Data Center PTP Profile, <B>Workstream #2</B> goals and draft spec] | ||
| | | Michel Ouellette | ||
| | | | ||
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| #4 | | #4 | ||
| Aug-26, 2020 | | Aug-26, 2020 | ||
| [https://www.youtube.com/watch?v=vc1IUOw0Q4k Open Grandmaster, <B>Workstream #1</B> goals and draft spec] | | [https://www.youtube.com/watch?v=vc1IUOw0Q4k Open Grandmaster (Open Time Server), <B>Workstream #1</B> goals and draft spec] | ||
| | | Oleg Obleukhov | ||
| | | | ||
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| #3 | | #3 | ||
| Aug-12, 2020 | | Aug-12, 2020 | ||
| [https://www.youtube.com/watch?v=INEbH7Q_d1c | | [https://www.youtube.com/watch?v=INEbH7Q_d1c TAP Vision as well as the impact of precision oscillator noise on PTP time error] | ||
| | | Dotan Levi | ||
| | | | ||
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| Jul-29, 2020 | | Jul-29, 2020 | ||
| [https://www.youtube.com/watch?v=t7eo3Aya35c Detailed Project Proposal and Discussion] | | [https://www.youtube.com/watch?v=t7eo3Aya35c Detailed Project Proposal and Discussion] | ||
| | | Michel Ouellette | ||
| | | | ||
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| Jul-15, 2020 | | Jul-15, 2020 | ||
| [https://www.youtube.com/watch?v=WmMM0b38mIM Proposal to launch OCP-TAP Incubation Project] | | [https://www.youtube.com/watch?v=WmMM0b38mIM Proposal to launch OCP-TAP Incubation Project] | ||
| | | Ahmad Byagowi, Ph.D. | ||
| [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing Slides] | | [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing Slides] | ||
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==Presentations & Videos== | ==Presentations & Videos== | ||
:- [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing | :- [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing '''TAP Vision'''] | ||
:- [https://drive.google.com/file/d/1LC5Ld0r3U7us_jvmKeD_ZpBJaA7Kk0O4/view?usp=sharing TAP Presentation] | :- [https://drive.google.com/file/d/1LC5Ld0r3U7us_jvmKeD_ZpBJaA7Kk0O4/view?usp=sharing '''TAP Presentation'''] | ||
:- [https://drive.google.com/file/d/1RRjmGcaerDcjSKHzjfs9ob0XoldP03uQ/view?usp=sharing '''GTC 2021''': Time Synchronization in Distributed Data Centers Video] [https://drive.google.com/file/d/1H8Q4S7darJyz_LTtQq_MykvzfhD_w_6I/view?usp=sharing Slides] | |||
:- September 2nd 2021 IC Presentation [https://www.youtube.com/watch?v=JJQnNsDGEQU (Contribution of TAP DC Profile)] | |||
:- August 5th, 2021 IC Presentation [https://www.youtube.com/watch?v=iINUNj9gIZw (Contribution of TAP Time Card and Open Time Server)] | |||
:- '''2020 OCP Tech Week''' | |||
::- Kickoff: [https://www.youtube.com/watch?v=w-IAs3E2g4U Video] [https://drive.google.com/file/d/1sYTiNuowwMfM000wOVSGXZdrjM8kxByk/view?usp=sharing Slides] | |||
::- Synchronized Data Centers - Why Bother? [https://www.youtube.com/watch?v=fPhwjtHFLFM Video] [https://drive.google.com/file/d/1YojdzkSxHsfyyjd4nE6yBpdLDrY_jtxr/view?usp=sharing Slides] | |||
::- Hardware Timestamping Revolution (Alternatives to Vanilla PTP): [https://www.youtube.com/watch?v=o99Wd-KAdA0 Video] [https://drive.google.com/file/d/1UuNb9mxDPvkyBpKB81-wADzGz80QWKKt/view?usp=sharing Slides] | |||
::- Measurement and Testing Challenges in Data Centers: [https://www.youtube.com/watch?v=03sp55VqkZI Video] Slides [https://drive.google.com/file/d/13LQXu85DccbHZUto60CYUuCCXdKCOlKu/view?usp=sharing Part 1] [https://drive.google.com/file/d/1HIhEg8sp9Xg6Ki5wj2OIPzZopG_m8Nao/view?usp=sharing Part 2] | |||
::- Data Center PTP Profile: [https://www.youtube.com/watch?v=kr4kk6k7n2Q Video] [https://drive.google.com/file/d/1P6-cG6nv7Mk9VsY1mC2sQ82lr5cJP23X/view?usp=sharing Slides] | |||
::- Open Source Time Server (Grandmaster): [https://www.youtube.com/watch?v=00POE1HkHHo Video] [https://drive.google.com/file/d/1BKNbnSTW1Yhqlyd9UyWlFp9UN8tRBUQz/view?usp=sharing Slides] | |||
::- Tech Demo - Open Source Time Server (Grandmaster): [https://www.youtube.com/watch?v=Y01_15SQFVQ Video] [https://drive.google.com/file/d/129rYCVeHgi3-VxbCNUan-ByV5B9YsgSI/view?usp=sharing Slides] | |||
:- [https://drive.google.com/file/d/16EAy8Tl7SqosLlGSg5WKEA4nexWjUlAg/view?usp=sharing Impact of Oscillator Noise on PTP Time Error – Part 1] | :- [https://drive.google.com/file/d/16EAy8Tl7SqosLlGSg5WKEA4nexWjUlAg/view?usp=sharing Impact of Oscillator Noise on PTP Time Error – Part 1] | ||
:- [https://drive.google.com/file/d/1Kc5JdHdd2nchxbXNGm2XyBj-pXUkHk9N/view?usp=sharing Impact of Oscillator Noise on PTP Time Error – Part 2] | :- [https://drive.google.com/file/d/1Kc5JdHdd2nchxbXNGm2XyBj-pXUkHk9N/view?usp=sharing Impact of Oscillator Noise on PTP Time Error – Part 2] | ||
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{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Workstream !! | ! Workstream !! Recordings !! Slides | ||
|- | |- | ||
| rowspan=" | | rowspan="7" | #4 Oscillators | ||
| [https://drive.google.com/file/d/14dONxCYDf-s0-uTZkzrcsJ9iUgHKUgGO/view?usp=sharing Aug-11, 2021]; [https://drive.google.com/file/d/1sE0POmbOwZujYnysLP3I0ckSuBx_nl4d/view?usp=sharing Aug-25, 2021] | |||
| [https://drive.google.com/file/d/ | |||
|- | |- | ||
| [https://drive.google.com/file/d/174ee4Vy40Xng_eadeGJCaqA-e30pUOoS/view?usp=sharing Jul-21, 2021] | |||
| [https://drive.google.com/file/d/ | |||
| | | | ||
|- | |||
| [https://drive.google.com/file/d/1-NCuDKgyX3BcNYXOigC_1iGxNpMkld3f/view?usp=sharing Jun-2, 2021];[https://drive.google.com/file/d/1kAGJfEMGr3ohVcbOg4W1oP17h2EPLIpI/view?usp=sharing Jun-9, 2021]; [https://drive.google.com/file/d/1qpshLJ0M9NIZ6F8Zt0pToYQiMeeuJnck/view?usp=sharing Jun-23, 2021] | |||
| | |||
|- | |||
| [https://drive.google.com/file/d/15MWS5t-Wag0LsJBebB8mPmjKatvRBjgS/view?usp=sharing May-5, 2021]; [https://drive.google.com/file/d/1whjaGJv005NjJH81_pIZM6doiS6_zOPK/view?usp=sharing May-12, 2021]; [https://drive.google.com/file/d/1L3cF6nFC7HrlsZzoNsxx-5LBwGxmWVtt/view?usp=sharing May-19, 2021], [https://drive.google.com/file/d/1TWQdRqPglIp1begJf4_CT94GlDnIyLLT/view?usp=sharing May-26 2021] | |||
| | |||
|- | |||
| [https://drive.google.com/file/d/1HyR0wECmPYLHITq3Af0xYlaOWdIPlpm9/view?usp=sharing Apr-7, 2021]; [https://drive.google.com/file/d/1lkECCGt6WCi9D1eYiFOizGqyPRPBhLnI/view?usp=sharing Apr-14, 2021];[https://drive.google.com/file/d/1uu3kDE5E7qBSC3ztkUBh8ocj8tn7_qH6/view?usp=sharing Apr-21, 2021];[https://drive.google.com/file/d/1a6jMilj6N4zSc5n5wD0AWF9wU1jsWA5M/view?usp=sharing Apr-28, 2021]; | |||
| | |||
|- | |||
| [https://drive.google.com/file/d/12WmaGkLF1IUjLaAhXSzVp33pzmlYMA4J/view?usp=sharing Mar-18, 2021]; [https://drive.google.com/file/d/1P1bME9Z8jQsPGPF1msC3a825Ou-4mjol/view?usp=sharing Mar-31, 2021]; | |||
| [https://drive.google.com/file/d/1O2iMLKKRqtesziBLPQ9PTh23Yyg_Efx2/view Mar-18, 2021] | |||
|} | |} | ||
== TAP Media References == | |||
:- [https://www.youtube.com/watch?v=JK3eTGkX6qY&t=286s "Why is this PCIe Card RADIOACTIVE?"] video from [https://www.youtube.com/channel/UCXuqSBlHAE6Xw-yeJA0Tunw Linus Tech Tips Youtube Channel] highlighting the TAP Time Card | |||
:- [https://www.youtube.com/watch?v=tU0xC1ynaT8 "The most accurate Raspberry Pi clock IN THE WORLD! Can it do PTP?"] video from [https://www.youtube.com/channel/UCR-DXc1voovS8nhAvccRZhg Jeff Geerling Youtube Channel] highlighting the TAP Time Card | |||
:- [https://www.youtube.com/watch?v=YKApDtJjXU4 "Put An Atomic Clock in Your PC - Open Source Time Card"] video from [https://www.youtube.com/channel/UCRjSO-juFtngAeJGJRMdIZw Gary Explains Youtube Channel] explains the TAP Time Card | |||
:- [https://www.cnet.com/tech/computing/facebook-shares-its-time-card-atomic-clock-tech-to-speed-internet-services/ "Facebook shares its Time Card atomic clock tech to speed internet services"] article from C|Net | |||
:- [https://developer.nvidia.com/blog/nvidia-supercharges-precision-timing-for-facebooks-next-generation-time-keeping/ "Supercharges Precision Timing for Facebook’s Next-Generation Time Keeping"] developer blog from NVIDIA | |||
== References & External Links == | == References & External Links == | ||
:- [https://storage.googleapis.com/pub-tools-public-publication-data/pdf/45855.pdf Spanner, TrueTime & The CAP Theorem] by Eric Brewer, Google | :- [https://storage.googleapis.com/pub-tools-public-publication-data/pdf/45855.pdf '''Spanner''', TrueTime & The CAP Theorem] by Eric Brewer, Google | ||
:- [https://www.usenix.org/conference/osdi20/presentation/li-yuliang '''Sundial''': Fault-tolerant Clock Synchronization for Datacenters] by Google Inc. and Harvard University | |||
:- [http://www.dainf.cefetpr.br/~tacla/SDII/PracticalUseOfClocks.pdf Practical Uses of Synchronized Clocks in Distributed Systems] by Barbara Liskov | :- [http://www.dainf.cefetpr.br/~tacla/SDII/PracticalUseOfClocks.pdf Practical Uses of Synchronized Clocks in Distributed Systems] by Barbara Liskov | ||
:- [https://ocp-all.groups.io/g/OCP-TAP/attachment/2/0/nsdi18-geng.pdf Stanford Paper] | :- [https://ocp-all.groups.io/g/OCP-TAP/attachment/2/0/nsdi18-geng.pdf Stanford Paper] | ||
:- [https://arxiv.org/pdf/2002.04269.pdf On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks] | |||
:- [https://arxiv.org/pdf/2002.04269.pdf On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks] | :- [https://drive.google.com/file/d/11MFIk9WWJ-cmjj8uWifKQnefEKvdchZE/view?usp=sharing Accurate Network Clock Synchronization at Scale] | ||
:- [https://drive.google.com/file/d/11MFIk9WWJ-cmjj8uWifKQnefEKvdchZE/view?usp=sharing Accurate Network Clock Synchronization at Scale] | :- [https://drive.google.com/file/d/1dpuhsC3aPNpJHD-iw0xq4K0cDjEMGG4q/view?usp=sharing Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization] | ||
:- [https://drive.google.com/file/d/1dpuhsC3aPNpJHD-iw0xq4K0cDjEMGG4q/view?usp=sharing Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization] | :- [https://drive.google.com/file/d/1OSdZfRiGYKSntjhorKdPtoP1ewQ_yKVW/view?usp=sharing SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks] | ||
:- [https://drive.google.com/file/d/1OSdZfRiGYKSntjhorKdPtoP1ewQ_yKVW/view?usp=sharing SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks] | :- [https://www.opencompute.org/blog/open-compute-project-foundation-issues-new-guidelines-for-inclusiveness New Guidelines for Inclusiveness] | ||
:- [https://www.opencompute.org/blog/open-compute-project-foundation-issues-new-guidelines-for-inclusiveness New Guidelines for Inclusiveness] |
Revision as of 20:00, 24 September 2021
Welcome
- Welcome to the OCP Time Appliances Project wiki.
- This Project is open to the public and we welcome all those who would like to be involved.
- Time is a key element to get the highest efficiency in a distributed system. The performance of a distributed system depends on the synchronization of its elements. Several industries such as telecom, mobile, power, industrial, professional audio and video and many more have embraced the need for highly accurate and more importantly reliable distribution and synchronization of time and frequency across packet networks. Although the use case scenario for each of the industries is different, they all share one common thing and that is, time synchronization. Since there is a diverse need for time synchronization across different industries, driven from different use cases and applications, managing the needs of this industry chain becomes a challenge.
Time Appliances Project (TAP) aims to provide a platform to bring together, discuss, standardize and share technologies and solutions across industries with the datacenter applications and datacenter network infrastructure as the main interest. The project aims to bring together the community of datacenter operators, application developers, and equipment and semiconductor companies together to enable datacenter time-sensitive applications such as consistency in distributed systems, edge computing, AR/VR and IoT. These applications will greatly benefit from high accuracy, reliable, and scalable distribution and synchronization of time.
IEEE 1588 Precision Timing Protocol (PTP) and other synchronization methods have been adopted by various industries to maximize the efficiency of various distributed system use cases. Each use case scenario comes with a set of requirements and configurations. These configurations are collected as a ‘PTP profile’. Time appliances project aims to support the development of a PTP profile for datacenter applications and datacenter network infrastructure. The profile will cover time-sensitive applications over OCP-compliant and PTP-aware networking infrastructure such as network switches, network clocks, network interface cards, timing modules & connectors, etc. Additionally, the profile will address various requirements for high accuracy and reliable distribution and synchronization of time, such as expected performance, networking, software API, data models, deployment and telemetry. The project also aims at openness and interoperability through the use of open-source PTP software implementations for timing appliances.
Datacenter applications are the primary target of time appliances project. In addition, the project extends to related topics on time synchronization in academia, research and other industries. The time appliances project brings together the community and will be highly collaborative through technical meetings and collaboration with other OCP Projects including the Networking, Storage, Server, and Telco Projects.
- Disclaimer: Please do not submit any confidential information to the Project Community. All presentation materials, proposals, meeting minutes and/or supporting documents are published by OCP and are open to the public in accordance to OCP's Bylaws and IP Policy. This can be found on the OCP OCP Policies page. If you have any questions please contact OCP.
Mission Statement
- 1. Create specifications and references for Data Center Timing appliances, applications and networking infrastructure
- 2. Promote openness in Timing Appliances and interfaces through open-source implementations
Project Leadership
- - Lead: Ahmad Byagowi, Ph.D. (OCP TAP / Facebook)
- - Incubation Committee: Elad Wind (OCP / NVIDIA)
Workstreams
Project | Objective | POC | Meeting Schedule | |
---|---|---|---|---|
#1 | Open Time Server | Development of an open time server for DC and Edge systems | Oleg Obleukhov & Dotan Levi |
discussed during project calls |
#2 | Data Center PTP Profile | Development of a PTP Profile tailored for data center applications | Michel Ouellette | |
#3 | Precision Time API | Time APIs to disseminate the time error (error bound) and bring accurate time to the user space | Georgi Chalakov | |
#4 | Oscillators | Classification and measuring of oscillators | Gary Giust |
Get Involved
Documents
Worstream | Name | Format | Version | Date |
---|---|---|---|---|
#1 | Open Time Server | Reference Architecture | v1 | July 28, 2021 |
Time Card | Spec and design package | v1 | July 28, 2021 | |
TAP Software | Software | July 28, 2021 | ||
#2 | Data Center PTP Profile | Spec | v1 | August 31, 2021 |
Regular Project Calls
- - Wednesdays at 11am PST, starting on July 15th, 2020. Repeats every 2 weeks following that
- - Please contact Kelvin Chukwu to propose any agenda items
Join the meeting from your computer, tablet or smartphone:
https://global.gotomeeting.com/join/565185493
Dial in:
United States (Toll Free): +1 877 309 2073 United States: +1 571 317-3129 Access Code: 565-185-493
Upcoming Calls
Date | Topics | Speakers | |
---|---|---|---|
#36 | Dec-1, 2021 | Application of Physical Layer Synchronization/Syntonization in a Data Center Environment | Med Belhadj |
#35 | Nov-17, 2021 | Oscillator Workstream Update | Gary Guist, Ph.D. |
#34 | Nov-3, 2021 | Sync for Virtualized Software | Dotan Levi |
#33 | Oct-20, 2021 | Lasse Johnsen | |
#32 | Oct-6, 2021 | Validating PTP follower clock accuracy | Alon Regev |
Recordings from Past Calls
Presentations & Videos
- - TAP Vision
- - TAP Presentation
- - GTC 2021: Time Synchronization in Distributed Data Centers Video Slides
- - September 2nd 2021 IC Presentation (Contribution of TAP DC Profile)
- - August 5th, 2021 IC Presentation (Contribution of TAP Time Card and Open Time Server)
- - 2020 OCP Tech Week
- - Kickoff: Video Slides
- - Synchronized Data Centers - Why Bother? Video Slides
- - Hardware Timestamping Revolution (Alternatives to Vanilla PTP): Video Slides
- - Measurement and Testing Challenges in Data Centers: Video Slides Part 1 Part 2
- - Data Center PTP Profile: Video Slides
- - Open Source Time Server (Grandmaster): Video Slides
- - Tech Demo - Open Source Time Server (Grandmaster): Video Slides
- - Impact of Oscillator Noise on PTP Time Error – Part 1
- - Impact of Oscillator Noise on PTP Time Error – Part 2
- - ELPROMA TAP Remarks Oct 7 2020
Recordings from Workstream Calls
Workstream | Recordings | Slides |
---|---|---|
#4 Oscillators | Aug-11, 2021; Aug-25, 2021 | |
Jul-21, 2021 | ||
Jun-2, 2021;Jun-9, 2021; Jun-23, 2021 | ||
May-5, 2021; May-12, 2021; May-19, 2021, May-26 2021 | ||
Apr-7, 2021; Apr-14, 2021;Apr-21, 2021;Apr-28, 2021; | ||
Mar-18, 2021; Mar-31, 2021; | Mar-18, 2021 |
TAP Media References
- - "Why is this PCIe Card RADIOACTIVE?" video from Linus Tech Tips Youtube Channel highlighting the TAP Time Card
- - "The most accurate Raspberry Pi clock IN THE WORLD! Can it do PTP?" video from Jeff Geerling Youtube Channel highlighting the TAP Time Card
- - "Put An Atomic Clock in Your PC - Open Source Time Card" video from Gary Explains Youtube Channel explains the TAP Time Card
- - "Facebook shares its Time Card atomic clock tech to speed internet services" article from C|Net
- - "Supercharges Precision Timing for Facebook’s Next-Generation Time Keeping" developer blog from NVIDIA
References & External Links
- - Spanner, TrueTime & The CAP Theorem by Eric Brewer, Google
- - Sundial: Fault-tolerant Clock Synchronization for Datacenters by Google Inc. and Harvard University
- - Practical Uses of Synchronized Clocks in Distributed Systems by Barbara Liskov
- - Stanford Paper
- - On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks
- - Accurate Network Clock Synchronization at Scale
- - Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization
- - SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks
- - New Guidelines for Inclusiveness