Re: [RFR]: Per thread IO statistics in JFR

2019-01-23 Thread Haug, Gunter
Hi Alan, David Here are the results of the measurements. As mentioned before, I had measured some of the standard Java benchmarks and there was no impact. This is probably not surprising to anybody as the overhead up-calls is minuscule in comparison to the calculations that take place and is fa

Re: [RFR]: Per thread IO statistics in JFR

2019-01-17 Thread Haug, Gunter
>Today we have File Read, File Write, Socket Read, and Socket Write > events. The hook points are added to the JDK using bytecode >instrumentation. This happens when you start a JFR recording, so there >is no overhead unless you use it. > >Erik However, in this context it's