1 #!/usr/bin/env drgn
2 #
3 # Copyright (C) 2024 Tejun Heo <tj@kernel.org>
4 # Copyright (C) 2024 Meta Platforms, Inc. and affiliates.
5
6 desc = """
7 This is a drgn script to show the current sched_ext state.
8 For more info on drgn, visit https://github.com/osandov/drgn.
9 """
10
11 import drgn
12 import sys
13
14 def err(s):
15 print(s, file=sys.stderr, flush=True)
16 sys.exit(1)
17
18 def read_int(name):
19 return int(prog[name].value_())
20
21 def read_atomic(name):
22 return prog[name].counter.value_()
23
24 def read_static_key(name):
25 return prog[name].key.enabled.counter.value_()
26
27 def ops_state_str(state):
28 return prog['scx_ops_enable_state_str'][state].string_().decode()
29
30 ops = prog['scx_ops']
31 enable_state = read_atomic("scx_ops_enable_state_var")
32
33 print(f'ops : {ops.name.string_().decode()}')
34 print(f'enabled : {read_static_key("__scx_ops_enabled")}')
35 print(f'switching_all : {read_int("scx_switching_all")}')
36 print(f'switched_all : {read_static_key("__scx_switched_all")}')
37 print(f'enable_state : {ops_state_str(enable_state)} ({enable_state})')
38 print(f'bypass_depth : {read_atomic("scx_ops_bypass_depth")}')
39 print(f'nr_rejected : {read_atomic("scx_nr_rejected")}')
40 print(f'enable_seq : {read_atomic("scx_enable_seq")}')
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