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.
Tzvetomir Stoyanov (VMware) (12):
trace-cmd: Add initial perf interface in trace-cmd library
trace-cmd: Add logic for TSC to nanosecond conversion
trace-cmd: Append new options into guest trace file at the end of the
tracing session
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: 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
lib/trace-cmd/Makefile | 1 +
.../include/private/trace-cmd-private.h | 16 ++
lib/trace-cmd/trace-input.c | 96 ++++++++---
lib/trace-cmd/trace-perf.c | 105 ++++++++++++
lib/trace-cmd/trace-timesync.c | 1 -
tracecmd/include/trace-local.h | 7 +
tracecmd/trace-dump.c | 18 ++
tracecmd/trace-read.c | 9 +-
tracecmd/trace-record.c | 155 +++++++++++++++---
9 files changed, 358 insertions(+), 50 deletions(-)
create mode 100644 lib/trace-cmd/trace-perf.c
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2.29.2
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