v1.7.0

Features

• Adds metric event support for heterogenous architectures like Intel Alder Lake

Fixes

• Fixes PMU event handling for scale and units
• Fixes excessive permission requirement when HW_BREAKPOINT_COMPAT is used
• Fixes missing error messages when time synchronization fails
• Fixes exception handling that leads to crashes before the root cause is logged
• Fixes missing name for a thread when the process name could be used instead
• Fixes man-page installation
• Fixes excessive logging of libbfd errors when lo2s isn't set to debug output
• Fixes syscall name aggregation on some platforms
• Fixes sampling information lost when threads are short lived

v1.6.0

• Fix HAVE_PERF_RECORD_LOST_SAMPLES
• Add support for libsensors metrics (-S, --sensors)
• Add Syscall recording (-s, --syscall)
• Add performance tuning knobs to man-page
• Fix a possible occurence of Unknown Thread` in system monitoring
• Fix unintentional overriding of user input to CMake

v1.5.0

• Adds a property to the trace that shows a human-readable time string of when measuring started
• Fixes accidentally enabled instruction sampling in system monitoring mode
• Fixes time_enabled/time_running metrics
• Adds userspace metric reading
• Adds Block I/O tracing
• Adds cgroup filtering
• Update to OTF2 3.0
• Improved messages on SIGINT / ctrl-C
• Fixes debug builds
• Improves metadata of traces
• Code improvements

v1.4.0

• Removed Boost dependency
• Fixed a bug in event parsing

v1.3.1

• Fixes the changed interface of libbfd
• Improved listing of available events by monitoring mode
• Fixes possible race-conditions
• Allow raw perf events with any length
• Internal refactorings

v1.3.0

• Improved x86_adapt knob listing (requires recent x86_adapt library)
• Adds time interval based metric recording
• Improved error messages
• Adds a check for perf_paranoid setting of 3
• Adds selection of sampling event based on a hypervisor check
• Fix various issues in system monitoring mode

v1.2.2

• Adds special PEBS clock (see --list-clock)
• Adds SystemTreeNodeDomain definitions to output trace
• Fixes parsing of sysfs events with numbers in their name
• Temporary workaround for a race condition in the trace structure
• Fixes intervals over 1 second in poll monitor

v1.2.1

• Fixes locations in system monitoring
• Silence warning about PollMonitor already not joinable
• Fixes scaling of x86_energy metrics
• Fixes incorrect calling contexts are written to trace

v1.2.0

Changes

• Always write thread_begin events
• Use PERF_RECORD_SWITCH and PERF_RECORD_COMM events for system monitoring mode
  • This allows using system monitoring mode without access to the debugfs
• Improved feature checks at build time
• Improved naming of unresolvable functions
• In system monitoring mode, use the same location for samples and scheduling information
• Improved monitoring to reduced system load during monitoring

v1.1.1

Fixes

• Name of Travis generated release tarball