1 files changed, 0 insertions, 126 deletions
diff --git a/qemu/scripts/kvm/kvm_flightrecorder b/qemu/scripts/kvm/kvm_flightrecorder
deleted file mode 100755
index 7fb1c2d1a..000000000
--- a/qemu/scripts/kvm/kvm_flightrecorder
+++ /dev/null
@@ -1,126 +0,0 @@
-#!/usr/bin/env python
-#
-# KVM Flight Recorder - ring buffer tracing script
-#
-# Copyright (C) 2012 IBM Corp
-#
-# Author: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-#
-# This script provides a command-line interface to kvm ftrace and is designed
-# to be used as a flight recorder that is always running.  To start in-memory
-# recording:
-#
-# sudo kvm_flightrecorder start 8192  # 8 MB per-cpu ring buffers
-#
-# The per-cpu ring buffer size can be given in KB as an optional argument to
-# the 'start' subcommand.
-#
-# To stop the flight recorder:
-#
-# sudo kvm_flightrecorder stop
-#
-# To dump the contents of the flight recorder (this can be done when the
-# recorder is stopped or while it is running):
-#
-# sudo kvm_flightrecorder dump >/path/to/dump.txt
-#
-# To observe the trace while it is running, use the 'tail' subcommand:
-#
-# sudo kvm_flightrecorder tail
-#
-# Note that the flight recorder may impact overall system performance by
-# consuming CPU cycles.  No disk I/O is performed since the ring buffer holds a
-# fixed-size in-memory trace.
-
-import sys
-import os
-
-tracing_dir = '/sys/kernel/debug/tracing'
-
-def trace_path(*args):
-    return os.path.join(tracing_dir, *args)
-
-def write_file(path, data):
-    open(path, 'wb').write(data)
-
-def enable_event(subsystem, event, enable):
-    write_file(trace_path('events', subsystem, event, 'enable'), '1' if enable else '0')
-
-def enable_subsystem(subsystem, enable):
-    write_file(trace_path('events', subsystem, 'enable'), '1' if enable else '0')
-
-def start_tracing():
-    enable_subsystem('kvm', True)
-    write_file(trace_path('tracing_on'), '1')
-
-def stop_tracing():
-    write_file(trace_path('tracing_on'), '0')
-    enable_subsystem('kvm', False)
-    write_file(trace_path('events', 'enable'), '0')
-    write_file(trace_path('current_tracer'), 'nop')
-
-def dump_trace():
-    tracefile = open(trace_path('trace'), 'r')
-    try:
-        lines = True
-        while lines:
-            lines = tracefile.readlines(64 * 1024)
-            sys.stdout.writelines(lines)
-    except KeyboardInterrupt:
-        pass
-
-def tail_trace():
-    try:
-        for line in open(trace_path('trace_pipe'), 'r'):
-            sys.stdout.write(line)
-    except KeyboardInterrupt:
-        pass
-
-def usage():
-    print 'Usage: %s start [buffer_size_kb] | stop | dump | tail' % sys.argv[0]
-    print 'Control the KVM flight recorder tracing.'
-    sys.exit(0)
-
-def main():
-    if len(sys.argv) < 2:
-        usage()
-
-    cmd = sys.argv[1]
-    if cmd == '--version':
-        print 'kvm_flightrecorder version 1.0'
-        sys.exit(0)
-
-    if not os.path.isdir(tracing_dir):
-        print 'Unable to tracing debugfs directory, try:'
-        print 'mount -t debugfs none /sys/kernel/debug'
-        sys.exit(1)
-    if not os.access(tracing_dir, os.W_OK):
-        print 'Unable to write to tracing debugfs directory, please run as root'
-        sys.exit(1)
-
-    if cmd == 'start':
-        stop_tracing() # clean up first
-
-        if len(sys.argv) == 3:
-            try:
-                buffer_size_kb = int(sys.argv[2])
-            except ValueError:
-                print 'Invalid per-cpu trace buffer size in KB'
-                sys.exit(1)
-            write_file(trace_path('buffer_size_kb'), str(buffer_size_kb))
-            print 'Per-CPU ring buffer size set to %d KB' % buffer_size_kb
-
-        start_tracing()
-        print 'KVM flight recorder enabled'
-    elif cmd == 'stop':
-        stop_tracing()
-        print 'KVM flight recorder disabled'
-    elif cmd == 'dump':
-        dump_trace()
-    elif cmd == 'tail':
-        tail_trace()
-    else:
-        usage()
-
-if __name__ == '__main__':
-    sys.exit(main())