Anatoliy Balakirev ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5c62d60... ) *commented* on HV-1933 ( https://hibernate.atlassian.net/browse/HV-1933?atlOrigin=eyJpIjoiM2RmNDQ4... ) Re: Performance issue for validating list with 20k elements ( https://hibernate.atlassian.net/browse/HV-1933?atlOrigin=eyJpIjoiM2RmNDQ4... ) Hi Marko. Thanks for the hint! Indeed, when I remove those not needed @Valid annotations - it gets much much faster. Goes all the way down to the sub-second range (around 700ms) from 20-50 seconds and that’s even without https://hibernate.atlassian.net/browse/HV-1831 ( https://hibernate.atlassian.net/browse/HV-1831 )... Now I only need to figure out how to make openapi-generator-maven-plugin not to generate those 🙂 But that’s a separate story anyway. Thanks for the help and I guess this ticket can be closed as duplicated then. ( https://hibernate.atlassian.net/browse/HV-1933#add-comment?atlOrigin=eyJp... ) Add Comment ( https://hibernate.atlassian.net/browse/HV-1933#add-comment?atlOrigin=eyJp... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100213- sha1:cca7326 )