How to Troubleshoot SLOW backends using TCP dump and Wireshark

Sample JS code to create a simple node js server
Screen capture from Postman after the call
Screen capture from Wireshark after the call
Postman screen capture for sending a bigger file
Wireshark output for the connection 1
Wireshark output for the connection 2

Reasons behind the slow backend

  1. Due to the application’s data consumption rate
  1. https://www.youtube.com/watch?v=Ca9ZRyzeauo&t=17s
  2. https://osqa-ask.wireshark.org/questions/28438/why-i-cant-add-window-size-as-column-in-wireshark-129/

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Upulie Handalage

Upulie Handalage

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