Most likely these are distributed cache operations and since they are all
synchronous, you wait for each of them one by one. You can try to batch your
updates to improve performance or use data streamer . It would be even
better if you used affinity collocation  and made sure that all the
updates are local and network is not used during the computation.
View this message in context:
Sent from the Apache Ignite Users mailing list archive at Nabble.com.