2 Commits

Author	SHA1	Message	Date
Todd Fiala	2cd84c905d	added Linux support for test timeout sampling ... This is the Linux counterpart to the sampling support I added on the macOS side. This change also introduces zip-file compression if the size of the sample output is greater than 10 KB. The Linux side can be quite large and the textual content is averaging over a 10x compression factor on tests that I force to time out. When compression takes place, the filename becomes: {session_dir}/{TestFilename.py}-{pid}.sample.zip This support relies on the linux 'perf' tool. If it isn't present, the behavior is to ignore pre-kill processing of the timed out test process. Note calling the perf tool under the timeout command appears to nuke the profiled process. This was causing the timeout kill logic to fail due to the process having disappeared. I modified the kill logic to catch the case of the process not existing, and I have it ignore the kill request in that case. Any other exception is still raised. Reviewers: labath Subscribers: lldb-commits Differential Revision: https://reviews.llvm.org/D24890 llvm-svn: 282436	2016-09-26 20:25:47 +00:00
Todd Fiala	72525622b2	add hook for calling platform-dependent pre-kill action on a timed out test ... differential review: https://reviews.llvm.org/D24850 reviewers: clayborg, labath llvm-svn: 282258	2016-09-23 16:10:01 +00:00