Hi All,

First, I would like to thank Bill and George for their answers.

The following is only to help the team, so do not see any negative idea in it.

I am using an Intel Core 2 Duo CPU (E8400) at 3GHz, this is not the latest I7, 
but not too old... Not an AMD anyway.

FYI my test conditions are :
- WSJT-X : r7405
- FTol = 200Hz
- Decode : DEEP.

With these conditions, the CPU load is around 40% so I have the feeling that I 
have plenty. But, I wanted to try George's recommandations, so I reduced the 
FTol to 100Hz.
Now, the CPU load dropped to 32%, but the graphics fills up to 30s.

I have never tried to build from sources in Windows, but I did it with Linux 
(quite a while ago). So do you think that this problem could be solved by using 
Linux ? Or is there a newer version available under Linux that could overcome 
this problem ? 

Another question : using FTol = 100Hz does not leave much room for the 
transceiver frequency error (I am using a FT-2000 on 6m so it should be ok).

Thanks for your help.

Very 73 

Patrick, F1EBK




----- Mail original -----
De: "George J Molnar" <geo...@molnar.com>
À: "WSJT software development" <wsjt-devel@lists.sourceforge.net>
Envoyé: Mercredi 1 Mars 2017 14:22:27
Objet: Re: [wsjt-devel] problem with MSK-144

Patrick, you may need to reduce the FTol value if your CPU is being overtaxed. 
50 or 100 should be plenty. Switching from "deep" to "normal" decodes may also 
help. I'm not sure about Europe, but in North America, we seem to have settled 
on 
15 second cycles, too. 

Good luck! Hope to see you during Es season.

George J. Molnar
@GJMolnar

> On Mar 1, 2017, at 4:03 AM, Bill Somerville <g4...@classdesign.com> wrote:
> 
>> On 01/03/2017 10:05, Patrick wrote:
>> if I start WSJT-X in MSK-144 with a 30s period, the graph fills
>> up, but never reach the 30s, it stops between 22 and 26, sometimes 28s,
>> but never completes.
>> 
>> I don't now if I did something wrong, but any idea would be welcome.
> 
> Hi Patrick,
> 
> there are some issues with the MSK144 mode in the WSJT-X v1,7.0 GA 
> release. If you are able to build WSJT-X from sources I would recommend 
> the latest development sources (with the usual caveats about support and 
> fitness for use on air) for MSK144 usage.
> 
> There may be another issue, we have had reports of the WSJT-X MSK144 
> mode having severe CPU performance issues on at least some AMD CPUs, 
> what processor does your PC have?
> 
> 73
> Bill
> G4WJS.
> 
> 
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