@Singi Reddy Sreeja (CIS) Welcome to Microsoft Q&A, Thank you for posting your query!
Firstly, apologies for the delay in responding here and any inconvenience this issue may have caused.
There is no way to fetch the User details in perf hence it is not directly fetched exactly you will have to capture such information via powershell or cron job and paste it to a file then collect that log file via custom logs that's the only workaround, no direct method to achieve your requirement
If you wish and interested in this kind of feature, I would request you to post your feedback here. All the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure: https://feedback.azure.com/forums/34192--general-feedback
Hope this helps!
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