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The checkpoint uses ecFlow definition format, where writing to disk and reading it back into memory, can be done faster the boost or even Json serialisation.
In series 5 the server takes advantage of this by caching this as a string before writing it out as the checkpoint file.
This This effectively caches the de-serialisation cost .
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In the 4 series, whenever the GUI makes a change, it involves two calls to the server.
- Invoke the command
- call Call the sync command, This then syncs the changes from the server, into the client
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