[Ovmsdev] Console output batched up while command is run #32

Stephen Casner casner at acm.org
Tue Apr 10 23:12:47 HKT 2018


This phenomenon is a consequence of the Mongoose behavior of buffering
all the data rather than sending immediately.  We talked about some
approaches for an option to control that behavior, but I did not
implement any at the time since we were running with an unmodified
Mongoose at that point and we were not hitting memory crashes after
the adjustments we had made with tasks and stacks.

Subsequently we did decide to maintain some modifications to Mongoose,
so perhaps now I should implement an option for immediate sending.

                                                        -- Steve

On Tue, 10 Apr 2018, Mark Webb-Johnson wrote:

> Another one for Steve:
> https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/32 <https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/32>
> When running commands in ssh console (maybe others), the output is batched up and only output when the command has finished running.
> An example is:
> 	test sd
> But also:
> 	ota flash http
> It would be better if it could be output as the command is run.
> The issue is that we get no output when the command is run, then 30 seconds later (when command finishes) everything comes in one big batch output. The progress messages issued while the command runs are batched up.
> I don’t know how easy this is (I fear it is fundamental), but please have a look.
> Thanks, Mark.

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