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[v3,06/11] trace-cruncher: Add ftracefy example

Message ID 20210701111418.18386-7-y.karadz@gmail.com (mailing list archive)
State Superseded
Headers show
Series Build trace-cruncher as Python pakage | expand

Commit Message

Yordan Karadzhov July 1, 2021, 11:14 a.m. UTC 
This is the most basic possible example. To be considered as an
equivalent of a "Hello world" program.

Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
---
 examples/start_tracing.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100755 examples/start_tracing.py
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Patch

diff --git a/examples/start_tracing.py b/examples/start_tracing.py
new file mode 100755
index 0000000..da36164
--- /dev/null
+++ b/examples/start_tracing.py
@@ -0,0 +1,20 @@ 
+#!/usr/bin/env python3
+
+"""
+SPDX-License-Identifier: CC-BY-4.0
+
+Copyright (C) 2021 VMware Inc, Yordan Karadzhov (VMware) <y.karadz@gmail.com>
+"""
+
+import tracecruncher.ftracepy as ft
+
+# Create new Ftrace instance to work in.
+inst = ft.create_instance()
+
+# Enable all static events from systems "sched" and "irq".
+ft.enable_events(instance=inst,
+                 systems=['sched', 'irq'],
+                 events=[['sched_switch'],['all']])
+
+# Print the stream of trace events. "Ctrl+c" to stop tracing.
+ft.read_trace(instance=inst)