What's the meaning of the number after "D" in logs?

HOOPS Communicator
1

Hello,
Here’s the log after running a quick_start “convert_file.bat”. As topic, what’s the meaning of “1306529097”, “272028448” ，etc？

Thanks.

[07/15/2025 09-21-27-880 D:1306529097 PID:10408 M:16MB:]INFO: HOOPS Converter v25.4 - SC v76 Build 004b324
[07/15/2025 09-21-27-881 D:000000 PID:10408 M:16MB:]INFO: Component initialization
[07/15/2025 09-21-27-881 D:272028448 PID:10408 M:16MB:]INFO: Initializing HPS::World
[07/15/2025 09-21-28-013 D:1306529097 PID:10408 M:23MB:]INFO: Initializing Exchange
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[07/15/2025 09-21-30-578 D:000000 PID:10408 M:32MB:]INFO: Initializing HPS
[07/15/2025 09-21-30-578 D:002698 PID:10408 M:32MB:]INFO: Component initialization done
[07/15/2025 09-21-30-578 D:1306529097 PID:10408 M:32MB:]INFO: Loading
[07/15/2025 09-21-49-841 D:271871429 PID:10408 M:260MB:]INFO: GetModelFileInfo: Start
[07/15/2025 09-21-49-918 D:1306529097 PID:10408 M:267MB:]INFO: GetModelFileInfo: Complete
[07/15/2025 09-21-49-918 D:019339 PID:10408 M:267MB:]INFO: Loading [07/15/2025 09-21-49-918 D:1306529097 PID:10408 M:267MB:]INFO: Exporting
[07/15/2025 09-21-49-918 D:98481521 PID:10408 M:267MB:]INFO: Saving PNG: F:\jiaojie\exchange\HOOPS_Communicator_2025.4.0\quick_start\converted_models\user\images\ [07/15/2025 09-21-51-371 D:001452 PID:10408 M:417MB:]INFO: Saving PNG done: F:\jiaojie\exchange\HOOPS_Communicator_2025.4.0\quick_start\converted_models\user\images
[07/15/2025 09-21-51-371 D:1306529097 PID:10408 M:417MB:]INFO: Saving SC Model: F:\jiaojie\exchange\HOOPS_Communicator_2025.4.0\quick_start\converted_models\user\sc_models\ [07/15/2025 09-21-53-776 D:272069552 PID:10408 M:419MB:]INFO: Simplify analytic curve & surface data
[07/15/2025 09-21-53-831 D:000054 PID:10408 M:419MB:]INFO: Simplify analytic curve & surface data done
[07/15/2025 09-21-54-019 D:000086 PID:10408 M:421MB:]INFO: Number of assembly nodes : 831
[07/15/2025 09-21-54-019 D:1306529097 PID:10408 M:421MB:]INFO: Number of parts : 676
[07/15/2025 09-21-56-179 D:004808 PID:10408 M:466MB:]INFO: Saving SC Model done: F:\jiaojie\exchange\HOOPS_Communicator_2025.4.0\quick_start\converted_models\user\sc_models\ [07/15/2025 09-21-56-179 D:006261 PID:10408 M:466MB:]INFO: Exporting done
[07/15/2025 09-21-56-370 D:028489 PID:10408 M:249MB:]INFO: Exiting: Conversion successful

2

Furthermore,
Here’s a full log file of converting a model(size:4.5G), after hours of time it still running without return a success, is there anything wrong according to the log file.

Thanks.
log.zip (622.5 KB)

3

Per our Converter docs, the “D” represents:

milliseconds passed since begining of last block (blocks are stacked).

A CAD source file that is 4.5 GB falls on the high end of the typical size range. Our suggestion is to be a bit more judicious on the which and how much options are chosen for a single converter operation. For example, perhaps one converter call can generate the Stream Cache so that it will be available first to load in the Web Viewer. Generating a PNG can take awhile for large files so putting that on a different conversion would be better.

4

Thanks,
we do put generate SC and generate PNG in different conversions.

Can you find anything wrong according to the log file? It ran about 8+ hours, what can we do? just waiting?

5

The log file you provided is über-dense. I searched for “error” and “exception” and there were no results.

You said that PNG and SC were on different conversions. However I see the following entries in the logfile in your initial description:

[07/15/2025 09-21-49-918 D:98481521 PID:10408 M:267MB:]INFO: Saving PNG:
[07/15/2025 09-21-51-371 D:1306529097 PID:10408 M:417MB:]INFO: Saving SC Model:

6

The log file in initial description is after running a quick_start “convert_file.bat”, it’s your sample application.

7

Unfortunately, there isn’t much in the way of speeding up the conversion process for a file of that size. Not only does converter need to load the file but it needs to create the Stream Cache.

In cases where the conversion fails to complete after some time, the source file might be corrupt. If possible, loading the CAD file in a native viewer could help in that regard.