Support Board
Date/Time: Sat, 23 Nov 2024 05:43:32 +0000
Post From: Data Feed Stopping/Lagging Issue (non-Denali specific)
| [2020-09-22 06:00:42] |
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We are now releasing version 2172 which supports data feed compression. This has only been released for the Denali data feed. It has been well tested. This will reduce bandwidth by 50% or more. If performance is good we can work on higher compression ratios. The performance is good and you can see what it is through the detailed heartbeat logging. More information about this: Prices / Data Falling Behind: 4.16 - Monitoring Sierra Chart Data Feed Performance from Perspective of Server Here is an example: SC Data - All Services | Heartbeat from server | ServerReceivedClientHeartbeatSecondsAgo=9, NumberOfOutstandingSendBuffers=1, TransmissionDelayInMilliseconds=20, ServerSendBufferSizeInBytes=192, ActualMessageDelay=0.2 seconds, DataCompRatio=2.52, UncompressedBytes=322032, CompressionTime=0.004706, NumCompressions=538 | 2020-09-22 01:58:39.491 In testing, we see performance of compressing over 6 MB as 2000 separate compressions for a total time of 9 ms. We do see higher compression times above. We will look into how this can be improved upon but still this is acceptable and will not introduce any lag because the time per compression is 8 µs approximately. 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: 2020-09-22 09:36:04
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