Am new to Spring and installed Eclipse STS plugin and working with services seem to be dead slow with CPU spiking in usage. The laptop just heats up and literally the fan runs like a Jet engine responding directly to the start/ stop of the services.

Although following have really ironed out all of the Eclipse performance issues with Spring STS for me, the actual daily development is just so slow where the services literally take minutes to start and Eclipse keeps freezing while debugging the code and normal code navigation also would freeze Eclipse while the services are UP.

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  I believe the problem really being with 'Launch Configurations', where it introduces 'build and refresh' of the 'Run Configurations' that have been put into launch groups. I'm sure there would be some good reason for Eclipse to have done this, but that really did not work for me in this case. Each time I start/ restart services using launch configurations, the 'Launch Configuration' is just triggering 'build' for all 9 Spring projects, and this adds up to Eclipse workload freezing it for good 6-10 minutes (as that is the project build time) before handing over control to STS plugin, which further takes few minutes to start all the services.

  

  Once I stopped using 'Launch Configurations', 'start/ restart' of each service via the STS plugin is just seconds, not even minutes.

  What a ride it had been! Hope this helps someone!!