From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH 00/12] TSC trace clock to nanosecond conversion
Date: Mon, 15 Mar 2021 08:18:20 +0200 [thread overview]
Message-ID: <20210315061832.168495-1-tz.stoyanov@gmail.com> (raw)
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
--
2.29.2
next reply other threads:[~2021-03-15 6:19 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 6:18 Tzvetomir Stoyanov (VMware) [this message]
2021-03-15 6:18 ` [PATCH 01/12] trace-cmd: Add initial perf interface in trace-cmd library Tzvetomir Stoyanov (VMware)
2021-03-15 21:59 ` Steven Rostedt
2021-03-15 6:18 ` [PATCH 02/12] trace-cmd: Add logic for TSC to nanosecond conversion Tzvetomir Stoyanov (VMware)
2021-03-16 21:17 ` Steven Rostedt
2021-03-17 9:57 ` Tzvetomir Stoyanov
2021-03-17 21:49 ` Steven Rostedt
2021-03-18 3:42 ` Tzvetomir Stoyanov
2021-03-18 13:59 ` Steven Rostedt
2021-03-15 6:18 ` [PATCH 03/12] trace-cmd: Append new options into guest trace file at the end of the tracing session Tzvetomir Stoyanov (VMware)
2021-03-15 6:18 ` [PATCH 04/12] trace-cmd: Add a new option in trace file metadata for tsc2nsec conversion Tzvetomir Stoyanov (VMware)
2021-03-15 6:18 ` [PATCH 05/12] trace-cmd: Save information for tsc to nanoseconds conversion in trace file Tzvetomir Stoyanov (VMware)
2021-03-15 6:18 ` [PATCH 06/12] trace-cmd: Read information for tsc to nanoseconds conversion from " Tzvetomir Stoyanov (VMware)
2021-03-15 6:18 ` [PATCH 07/12] trace-cmd: Remove unneeded multiply in events timestamp reading Tzvetomir Stoyanov (VMware)
2021-03-15 6:18 ` [PATCH 08/12] trace-cmd: Perform all timestamp corrections in a single function Tzvetomir Stoyanov (VMware)
2021-03-15 6:18 ` [PATCH 09/12] trace-cmd: Convert tsc timestamps to nanosecods when reading trace data from a file Tzvetomir Stoyanov (VMware)
2021-03-16 21:25 ` Steven Rostedt
2021-03-15 6:18 ` [PATCH 10/12] trace-cmd: Set order and priorities when applying timestamp corrections Tzvetomir Stoyanov (VMware)
2021-03-16 21:28 ` Steven Rostedt
2021-03-15 6:18 ` [PATCH 11/12] trace-cmd: Add a new flag to disable any " Tzvetomir Stoyanov (VMware)
2021-03-15 6:18 ` [PATCH 12/12] trace-cmd: Add new parameter "--raw-ts" to "trace-cmd report" command Tzvetomir Stoyanov (VMware)
2021-03-16 21:29 ` Steven Rostedt
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