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Fix examples/clone_plot to use new syntax and pylibbpf API

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Pragyansh Chaturvedi
2025-10-22 20:54:59 +05:30
parent b24b3ed250
commit cb1ad15f43
1 changed files with 6 additions and 7 deletions
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13
examples/clone_plot.py
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@ -3,7 +3,6 @@ import time
from pythonbpf import bpf, map, section, bpfglobal, BPF from pythonbpf import bpf, map, section, bpfglobal, BPF
from pythonbpf.helper import pid from pythonbpf.helper import pid
from pythonbpf.maps import HashMap from pythonbpf.maps import HashMap
from pylibbpf import BpfMap
from ctypes import c_void_p, c_int64, c_uint64, c_int32 from ctypes import c_void_p, c_int64, c_uint64, c_int32
import matplotlib.pyplot as plt import matplotlib.pyplot as plt
@ -26,14 +25,14 @@ def hist() -> HashMap:
def hello(ctx: c_void_p) -> c_int64: def hello(ctx: c_void_p) -> c_int64:
process_id = pid() process_id = pid()
one = 1 one = 1
prev = hist().lookup(process_id) prev = hist.lookup(process_id)
if prev: if prev:
previous_value = prev + 1 previous_value = prev + 1
print(f"count: {previous_value} with {process_id}") print(f"count: {previous_value} with {process_id}")
hist().update(process_id, previous_value) hist.update(process_id, previous_value)
return c_int64(0) return c_int64(0)
else: else:
hist().update(process_id, one) hist.update(process_id, one)
return c_int64(0) return c_int64(0)
@ -44,12 +43,12 @@ def LICENSE() -> str:
b = BPF() b = BPF()
b.load_and_attach() b.load()
hist = BpfMap(b, hist) b.attach_all()
print("Recording") print("Recording")
time.sleep(10) time.sleep(10)
counts = list(hist.values()) counts = list(b["hist"].values())
plt.hist(counts, bins=20) plt.hist(counts, bins=20)
plt.xlabel("Clone calls per PID") plt.xlabel("Clone calls per PID")