Added new logic for converting TSC event's timestamps to nanoseconds. This trace clock is used by default in host-guest tracing session in combination with KVM time sync plugin. The parameters for conversion are retrieved by the perf kernel interface. New option is added to "trace-cmd report" command to force displaying raw time stamps from the trace file, without any corrections to the time stamps. These changes depend on "Refactoring and improvements of time sync logic" patch set. v2 changes: - Added new trace clock "-C tsc2nsec", which does not depend on host-guest tracing use case. - A few minor improvements and fixes. Tzvetomir Stoyanov (VMware) (18): trace-cmd: Add initial perf interface in trace-cmd library trace-cmd: Extend trace-cmd dump subcommand to display the clock trace-cmd: Save only the selected clock in the trace.dat file trace-cmd: Add new trace-cmd clock tsc2nsec trace-cmd: Add a new option in trace file metadata for tsc2nsec conversion trace-cmd: Save information for tsc to nanoseconds conversion in trace file trace-cmd: Read information for tsc to nanoseconds conversion from trace file trace-cmd: Save tsc2nsec clock in trace.dat file trace-cmd: Append new options into guest trace file at the end of the tracing session trace-cmd: Remove unneeded multiply in events timestamp reading trace-cmd: Perform all timestamp corrections in a single function trace-cmd: Convert tsc timestamps to nanosecods when reading trace data from a file trace-cmd: Set order and priorities when applying timestamp corrections trace-cmd: Add a new flag to disable any timestamp corrections trace-cmd: Add new parameter "--raw-ts" to "trace-cmd report" command trace-cmd: Print times in TimeShift options as unsigned in trace-cmd dump trace-cmd: Use tsc clock for host-guest tracing, if available trace-cmd: Get current clock for host-guest tracing session Documentation/trace-cmd/trace-cmd-dump.1.txt | 2 + Makefile | 6 + lib/trace-cmd/Makefile | 3 + .../include/private/trace-cmd-private.h | 22 ++ lib/trace-cmd/trace-input.c | 103 +++-- lib/trace-cmd/trace-output.c | 65 ++- lib/trace-cmd/trace-perf.c | 105 +++++ lib/trace-cmd/trace-timesync.c | 1 - tracecmd/include/trace-local.h | 7 + tracecmd/trace-dump.c | 55 ++- tracecmd/trace-read.c | 9 +- tracecmd/trace-record.c | 372 +++++++++++++++--- tracecmd/trace-usage.c | 1 + 13 files changed, 649 insertions(+), 102 deletions(-) create mode 100644 lib/trace-cmd/trace-perf.c -- 2.30.2