Time-Appliance-Project
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Time-Appliance-Project | onload | |
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13 | 7 | |
1,291 | 489 | |
1.9% | 4.5% | |
9.2 | 9.6 | |
5 days ago | 6 days ago | |
C | C | |
MIT License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Time-Appliance-Project
- Time Card Mini Adds Pi, GPS, and OXCO to Your PC
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Meta's Reality Labs lost $3.99 billion last year, bringing its total losses since 2020 to $30 billion
Even just specific projects under that have been impactful. For example the open time server project.
- What’s the most granular magnitude of time (Picosecond, Femtosecond, etc.) that a CPU can return when it’s queried for system time?
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New atomic clock loses only one second every 300B years
Facebooks Time Card is a good starting point if you want to start looking into how higher end timing devices are built: https://github.com/opencomputeproject/Time-Appliance-Project...
Afaik its not currently available for purchase, so it is more of a diy route. If you want a standalone unit, it probably wouldn't be too big of hassle to ducktape that Time Card to e.g. Raspberry Pi CM4 or similar module with pcie and drive a display (or whatev) that way. Or that FPGA on the Time Card probably has enough spare capacity to do it directly too, for a simplified architecture (and maybe better hard realtime control).
- Time Appliance Project
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Host your own Stratum 1 NTP (network time protocol) server using a $12 USD USB GPS to keep all your other servers synchronized
Now you can get/build your own atomic pcie clock for ~$300-2000 for your rack!
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Time Card
Time Card is an open-source solution for PTP-enabled networks that provides the accurate time via GNSS—with a high stability (and holdover) oscillator such as an atomic clock as a backup in the event of GNSS failure. zeroibis recommends it for those who "need to go the full self-hosted NTP route."
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NTP - Help!
On a related note if you need to go the full self hosted NTP route: https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card
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Facebook open-sourcing a more precise time server
Really nice of them to release this. However, unless I'm missing something, the HDL for the FPGA on the Time Card is not part of the release. It looks like it uses a proprietary IP core from NetTimeLogic
https://github.com/opencomputeproject/Time-Appliance-Project...
They do include FPGA bit streams, but it's disingenuous to claim a fully open source release.
onload
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latency and optimizations for gaming ?
Other than that, I heard there's some 3rd party network libraries that are generally considered lower latency, one of them I believe either redhat uses for one of their systems, or it is sponsored by them: https://github.com/Xilinx-CNS/onload
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Arbitrage and efficient data storage
I mean really you want to be doing some kind of (kernel network bypass with some sort of system programming language like C++ for low latency trading systems like this. Arb trading is usually not worth it unless you have a ton of expertise or some crazy mathematical edge that can offset. Plus you need to be guaranteed to execute the trade you ask for which most average joes don't have.
- Linux Kernel vs. DPDK: HTTP Performance Showdown
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Facebook open-sourcing a more precise time server
How about the x2 series from Xilinx?
It comes from solarflare who have a long pedigree of low-latency smartnics. They used to supply Cloudflare, and also supply like 50% of fintechs/financial markets.
You can also just use openonload to accelerate your programs. In this case just doing straight linux socket programming, which can be accelerated without dpdk. Or just use the generic linux driver if necessary.
https://github.com/Xilinx-CNS/onload
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AMA: We are Akhi, Alexandra, Islam, and Dimitris from the DFINITY Execution team. Ask us anything about building the execution layer.
Ahki SingHania - Akhi is the engineering manager for the Execution team. He has a background in operating systems and networking. Before working on the Internet Computer, he worked on OpenOnload and Barrelfish.
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Looking for recommendations on opensource user-space TCP stack implementations that are optimized for latency, not throughput.
https://github.com/Xilinx-CNS/onload any good?
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Tcp Offload Woes
It used to be openonload.org which seems to redirect to https://github.com/Xilinx-CNS/onload for the source to onload.
What are some alternatives?
fboss - Facebook Open Switching System Software for controlling network switches.
openonload - git import of openonload.org https://gist.github.com/majek/ae188ae72e63470652c9