So basically, what you demonstrate is not Tomcat vs Undertow vs Webflux performance but Spring default for Tomcat vs Spring default for Undertow vs Spring default for Webflux.
You compare default settings for Spring servlet engines implementation rather than servlet engines themselves, it would be fair to make a note about this.
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So basically, what you demonstrate is not Tomcat vs Undertow vs Webflux performance but Spring default for Tomcat vs Spring default for Undertow vs Spring default for Webflux.
You compare default settings for Spring servlet engines implementation rather than servlet engines themselves, it would be fair to make a note about this.