Processing time for stamps export

What is the expected processing time for stamps export?
I’m using the snap2stamps workflow on a full subswath of S1 data, coregistration/ifg formation completed on average just under 30 minutes but the export step is taking 3-4 hours per scene. I’m processing 98 scenes and it’s about 60% done after running for the last 10 days so it should be done sometime next week.
I was under the impression the most time consuming step was in the co-registration so I just want to check with how long the stamps export is supposed to take and what other people have seen.

It doesn’t seem to be too cpu or memory intensive so i’m assuming the bottleneck is in the disk read/write. I’m exporting it to an external hardrive (Backup Plus Portable Drive 4TB Blue) with usb 3.0.

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COMPUTING RESOURCES TO EMPLOY

CPU=8
CACHE=19G
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facing the same situation with a complete subswath of S1A. Coregistration and interferometric time for one slave is about 490s, and then I am still in waiting of the first export to finish.

I would be happy to understand what happens during the export step. Obviously, it is not just a procedure of compatibility between formats, as “export” might be thought of.
It looks like it does some major calculations in that step.

@ABraun, Can you please shed some light on the subject?

Thank you

I am not a developer so I’m afraid I can’t tell much.

Here’s the code to the module, maybe this helps: https://github.com/senbox-org/s1tbx/blob/master/s1tbx-op-insar/src/main/java/org/esa/s1tbx/insar/gpf/StampsExportOp.java

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I have a same experience a few days ago.
In my case, the problem is my HDD data transfer rate is low (external HDD with USB 3.0). Then, I changed my working directory to new HDD with transfer rate 6GB/s and connect with SATA (not USB). The processing speed (stamps export) using new HDD was increased 10-15 times than previous HDD.

Dear @mdelgado @ABraun InSnap2stamps (Python code) all the steps are running with high speed but Stamps_export.py is running very very slow and time-consuming (for one it is taking 3hours ) even I’m using a 128GB RAM server. Is there any method to improve the speed?

If it still running try to do the stamps export with SNAP 8 and let me know.
Best,

I’m updating SNAP every time, Stamps_export is running on SNAP8

which are the PC/laptop resources? how large is your AOI (IWs, bursts)?

I’m using entire IW1

Then it may take some time depending on your PC/laptop resources.
I usually work on smaller AOIs (2-4) bursts