• DTrace
• 15September2016

DTrace Hangout 15 Sep 2016

• George asks about the test suite and whether or not Apple runs these as well. According to James, Samuel is working to improve this. The biggest issue is around the safety tests which abuse the systems rather heavily. There are updates to the suite from Apple which will be in the next public source release. George will integrate these as appropriate.
• Arun asks if we can get Mac OS running in a VM so we can run the tests on there.
• An interesting possible integration might be Apple's Logging system with DTrace.
• Discussion of having multiple levels of privacy in the DTrace data. This is not part of the original design but it might be an appropriate extension.
• We all agree that we want a mode where probes can actually block so that we do not lose data, even at the risk of a panic. It's possible the blocking mode that Mac OS has may be usable generally for this.
• George will push his example de-printf branch which includes the removal of much of the IPsec logging in favor of SDTs.
• Arun asks about better internals documentation for DTrace.
• Mark has added a SIGINFO handler to the dtrace(1) command to print aggregations when you hit Ctrl-T.
• We're going to look into using the Request for Discussion (RFD) process for general DTrace development.