Linux 5.14 brought a new system call
memfd_secret in order to mitigate speculative attack by preventing the kernel from being able to peek at these memory segments. Let’s use this syscall from the JVM with the JEP-419 API.
JDK 17 is coming and with the incubating JEP-412, let’s have a practical look at this API that should supersede JNI.
JDK 16 is coming and with the incubating JEP-389, let’s have a practical look at this API that should supersede JNI.
It all started when opening a JFR recording, I noticed a very large and growing number of very short lived threads.
Understand the RSS of a JVM leveraging the horsepower underneath
ps with the help of one or two JVM diagnostic command.