[ https://issues.jboss.org/browse/JGRP-1980?page=com.atlassian.jira.plugin.... ] Bela Ban commented on JGRP-1980: -------------------------------- Possible improvements in {{UFC}} ({{MFC}} is not really used by Infinispan, therefore we'll look at it later): * {{FlowControl$Credit.needsToSendCreditRequest()}} uses the same lock as {{decrementIfEnoughCredits()}} and {{increment()}}. Since this method is called *for every sent message*, using a separate lock will remove roughly 50% of the lock access: ** Every send calls {{decrementIfEnoughCredits()}}: ca. 50% ** Every send calls {{needsToSendCreditRequest()}}: ca. 50% ** A replenishment calls {{increment()}}: ca. 2%. This is not called frequently and depends on the max number of credits, the size of the messages and the number of sender threads -- This message was sent by Atlassian JIRA (v6.4.11#64026)