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Modding, Mission Design, and Coding => FS2 Open Tools => Topic started by: Rear_Admiral_Tarsus on January 02, 2017, 08:22:12 pm

Title: FS2 Trace viewer pre-release
Post by: Rear_Admiral_Tarsus on January 02, 2017, 08:22:12 pm
Hello all (especially devs),

Have you ever wondered why freespace froze at a given point in time, but had a hard time tracking down why? This may be the help you need.

I've been working on a trace viewer called Space Compass.

You can get the software here:


From the program just go to file->open and open the trace.json from freespace2. I suggest using a launcher to enable tracing with a checkbox.

If you want to go even deeper, you can have a system trace using LTTng in Linux or the windows performance toolkit in Windows. LTTng generates a CTF trace that can be natively imported by trace compass. Windows did not release the specs to the trace format as far as I know, so an additional step is required. You can get the trace (not sure how) but then convert the ETW to CTF using this project https://github.com/fwininger/ETW2CTF . Then it can be imported.

So what is so interesting about this? You will correlate a system trace to the Freespace trace. You will know what is pre-empting your program and why.

I sincerely hope this helps,

Please feel free to suggest features/bugs/splash screens/other.

TL;DR: get this https://github.com/TheMatthew/spacecompass/releases if you need a trace viewer and want to see something other than Google Chrome/Chromium.