Hi Roger, The reason of slowdown might be the fact, that Ignite by default consumes 80% of available memory, which forces OS to start a lot of swapping, so all memory operations limited by disk speed. Try to reduce memory size [1].
[1] https://apacheignite.readme.io/v2.1/docs/memory-configuration#memory-policies Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Strange-problems-with-Ignite-native-Persistence-when-Data-exceeds-Memory-tp16187p16336.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.