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Direct MessagesDate/Time: Wed, 08 May 2024 21:54:16 +0000
Post From: Information: Denali Data Feed Lagging/Stopping Issues for Some Users
| [2020-09-08 17:49:41] |
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We have had a few reports recently of users reporting the Denali data feed lags or stops for them in particular around the market open. We have believed, that these are public Internet related issues. Once the public Internet is involved, there can be all kinds of problems. And when the market activity is very high at the open, there is a lot of data to be transmitted, and some amount of lag can be expected. We have been looking over these issues carefully and seeing what performance improvements can be made, and making those improvements, and analyzing the source of the problem. What we have determined, is that recent performance improvements are working well but not essential. There will still be more performance improvements to be made, but at best, these are reducing latency at the microsecond/small millisecond level which would go unnoticed by users. Most importantly, there is no lag or delay or any stopping issues coming out of the Denali data feed servers. None at all. These servers are very high-performance, and have a lot of excess capacity. Lagging data, and stopping data it is the result of public Internet connectivity. If the data is feed stops, it is the TCP protocol at the operating system level, which is stopping the transmission of data on specific connections due to remote acknowledgments not being received timely. This also can result in a lag because the TCP protocol will start to slow transmission of data. You can actually monitor the data related to this by referring to the information here: Prices / Data Falling Behind: 4.16 - Monitoring Sierra Chart Data Feed Performance from Perspective of Server (4.16) We are going to add a new setting to allow users to control the buffer timing. We will have controllable between 20 ms to 2000 seconds. The fewer packets that go out and the fewer remote acknowledgments that are needed, should reduce lagging/stopping we would hope. We will need more feedback on this. We will try to get this out before the end of the week. The other possibility is for us to compress the real-time data in some way. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2020-09-09 05:36:09
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