Alex Roytman ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiYTMxNzQ0N2Qy... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-13979?atlOrigin=eyJpIjoiYTMxNz... ) HHH-13979 ( https://hibernate.atlassian.net/browse/HHH-13979?atlOrigin=eyJpIjoiYTMxNz... ) Performance with JCache/EhCache v3 is three times slower than with old ehcache ( https://hibernate.atlassian.net/browse/HHH-13979?atlOrigin=eyJpIjoiYTMxNz... ) Change By: Alex Roytman ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) We migrated from Hibernate 4.3.8 to 5.4.14 and migrated from old ehcache 2 to jcache with ehcache 3 based secondary cache. we noticed application being terrible slow. A simple test of bulk reading our entities and iterating over their collections showed following: with no secondary caching - 10 sec with old ehcache provider - 13 sec with new jcache/ehcache 3 - 32 sec with Apache JCS - 28 sec Hibernate is 5.4.14, EhCache 3.8.1 my default cache config is consistent for both. in case of jcache it is {code:xml}<config xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://www.ehcache.org/v3' xmlns:jsr107='http://www.ehcache.org/v3/jsr107' xsi:schemaLocation=" http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core-3.8.xsd http://www.ehcache.org/v3/jsr107 http://www.ehcache.org/schema/ehcache-107-ext-3.8.xsd"> <service> <jsr107:defaults default-template="defaultCache" enable-management="false" enable-statistics="false"> </jsr107:defaults> </service> <cache-template name="defaultCache"> <expiry> <ttl unit="minutes">60</ttl> </expiry> <heap unit="entries">20000</heap> </cache-template> <cache alias="default-query-results-region"> <expiry> <ttl unit="minutes">30</ttl> </expiry> <heap unit="entries">200</heap> </cache> <cache alias="default-update-timestamps-region"> <expiry> <ttl unit="minutes">600</ttl> </expiry> <heap unit="entries">50000</heap> </cache> </config>{code} I would appreciate any input Thank you, Alex ( https://hibernate.atlassian.net/browse/HHH-13979#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-13979#add-comment?atlOrigin=ey... ) 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#100125- sha1:63ccdc5 )