Hi Ivan, You are right! I should make legacyChanged volatile as well. I will get it tested it with tier-1 and get back to you tomorrow.
Letu On 8/21/19, 12:08 AM, "Ivan Gerasimov" <ivan.gerasi...@oracle.com> wrote: Hi Letu! The fix introduces a read of non-volatile variable legacyChanged outside of synchronized block, which is not guaranteed to produce consistent results. (Please note that in the mentioned fix for JDK-7092821 the variable servicesChanged was made volatile, so that it could be accessed outside the synchronized blocks.) With kind regards, Ivan On 8/20/19 10:18 PM, Yang, Letu wrote: > Hi, > > Please review the fix of https://bugs.openjdk.java.net/browse/JDK-8229958 where I made the change to allow majority of calls don't have to acquire the locks when checking the availability of the Provider object. Similar effort had been made in fixing https://bugs.openjdk.java.net/browse/JDK-7092821 , but it only helped the calls for new encryption algorithms. Xin had helped me to upload the CR: https://cr.openjdk.java.net/~xliu/8229958/webrev/ . > > I had run tier-1 tests, and also a JMH test to confirm its performance improvement. We have also had it running in a load test environment of an application for a couple of days, and the improvement was confirmed as well. > > Best regards, > Letu > -- With kind regards, Ivan Gerasimov