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Fix examples/clone_plot to use new syntax and pylibbpf API

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This commit is contained in:
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.helper import pid
from pythonbpf.maps import HashMap
from pylibbpf import BpfMap
from ctypes import c_void_p, c_int64, c_uint64, c_int32
import matplotlib.pyplot as plt
@ -26,14 +25,14 @@ def hist() -> HashMap:
def hello(ctx: c_void_p) -> c_int64:
process_id = pid()
one = 1
prev = hist().lookup(process_id)
prev = hist.lookup(process_id)
if prev:
previous_value = prev + 1
print(f"count: {previous_value} with {process_id}")
hist().update(process_id, previous_value)
hist.update(process_id, previous_value)
return c_int64(0)
else:
hist().update(process_id, one)
hist.update(process_id, one)
return c_int64(0)
@ -44,12 +43,12 @@ def LICENSE() -> str:
b = BPF()
b.load_and_attach()
hist = BpfMap(b, hist)
b.load()
b.attach_all()
print("Recording")
time.sleep(10)
counts = list(hist.values())
counts = list(b["hist"].values())
plt.hist(counts, bins=20)
plt.xlabel("Clone calls per PID")