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Date/Time: Wed, 01 May 2024 23:28:20 +0000



Post From: Chart Update Interval

[2019-08-05 03:19:59]
Sierra Chart Engineering - Posts: 104368
The file remains open, and Sierra Chart is only reading the last record in the file when disconnected from the data feed. Which is about 24 bytes. This is all that happens. And Windows is not so inefficient, that that is an expensive call. It is not.

When you say externally updated it sounds like your updating the files when data arrives and the charts individually poll the OS file cache for updates which is an expensive Syscall. Also with my setup it's happening at 1500 times a second. It would be nice to see this be done differently.
No, this is not what happens. There is an internal cache that is used when a chart file is being updated during trading activity. There are no direct reads of the underlying file in this case.
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:
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Date Time Of Last Edit: 2019-08-05 03:20:43