Lessons learned from debugging application performance in Cloud
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Lift and shift migration using tools like Cloudendure is the fastest way to migrate 'on premises' systems to Google Cloud. When the migration is complete, the environment can be refactored to use cloud-native capabilities. During application testing after a recent automated migration using Cloudendure to GCP, a legacy web application started to show a heavy performance hit. It took 40 seconds to load the perl web page compared to 5 seconds loading time in 'on premises' system. System side load was very minimal. While debugging in client browser side, I found that most of the time is spend as idle!!
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