diff mbox series

[1/2] trace-cmd: Enable TS correction by default

Message ID 20210304131112.204294-2-tz.stoyanov@gmail.com (mailing list archive)
State Accepted
Headers show
Series trace-cmd: Apply time stamp corrections by default | expand

Commit Message

Tzvetomir Stoyanov (VMware) March 4, 2021, 1:11 p.m. UTC 
When opening a trace.dat file with trace-cmd library, apply time stamps
corrections from the file's metadata by default. This default behaviour
can be disabled with flag TRACECMD_FL_IGNORE_DATE using tracecmd_set_flag()
API, before reading the tracing data. There is also a "trace-cmd report"
option for ignoring any timestamp corrections: "--nodate".

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 lib/trace-cmd/trace-input.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index 9ef7b9f1..134f6220 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -1167,6 +1167,9 @@  static unsigned long long timestamp_correct(unsigned long long ts,
 	struct host_trace_info	*host = &handle->host;
 	int min, mid, max;
 
+	if (handle->flags & TRACECMD_FL_IGNORE_DATE)
+		return ts;
+
 	if (handle->ts_offset)
 		return ts + handle->ts_offset;
 
@@ -2585,6 +2588,7 @@  static int handle_options(struct tracecmd_input *handle)
 			if (!handle->host.ts_samples)
 				return -ENOMEM;
 			tsync_offset_load(handle, buf + 16);
+			tracecmd_enable_tsync(handle, true);
 			break;
 		case TRACECMD_OPTION_CPUSTAT:
 			buf[size-1] = '\n';