diff --git a/trash/pt02 b/trash/pt02
new file mode 100755
index 0000000..f3c927c
--- /dev/null
+++ b/trash/pt02
@@ -0,0 +1,117 @@
+#!/usr/bin/env python3
+
+from ctypes import CDLL
+from time import sleep
+import os
+
+"""
+    Execute the command
+    find /sys/fs/cgroup -name memory.pressure
+    to find available memory.pressue files (except /proc/pressure/memory).
+    (actual for cgroup2)
+
+
+
+"""
+
+psi_path = '/proc/pressure/memory'
+
+
+
+def mlockall():
+
+    MCL_CURRENT = 1
+    MCL_FUTURE = 2
+    MCL_ONFAULT = 4
+
+    libc = CDLL('libc.so.6', use_errno=True)
+
+    result = libc.mlockall(
+        MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT
+    )
+    if result != 0:
+        result = libc.mlockall(
+            MCL_CURRENT | MCL_FUTURE
+        )
+        if result != 0:
+            print('WARNING: cannot lock all memory')
+        else:
+            pass
+    else:
+        pass
+
+
+mlockall()
+
+
+def psi_path_to_metrics(psi_path):
+
+    with open(psi_path) as f:
+        psi_list = f.readlines()
+    # print(psi_list)
+    some_list, full_list = psi_list[0].split(' '), psi_list[1].split(' ')
+    #print(some_list, full_list)
+    some_avg10 = some_list[1].split('=')[1]
+    some_avg60 = some_list[2].split('=')[1]
+    some_avg300 = some_list[3].split('=')[1]
+
+    full_avg10 = full_list[1].split('=')[1]
+    full_avg60 = full_list[1].split('=')[1]
+    full_avg300 = full_list[1].split('=')[1]
+
+    return (some_avg10, some_avg60, some_avg300,
+            full_avg10, full_avg60, full_avg300)
+
+
+
+(some_avg10, some_avg60, some_avg300, full_avg10, full_avg60, full_avg300
+ ) = psi_path_to_metrics(psi_path)
+
+def cgroup2_root():
+    """
+    """
+    with open('/proc/mounts') as f:
+        for line in f:
+            if line.startswith('cgroup2 '):
+                return line[7:].rpartition(' cgroup2 ')[0]
+
+
+
+
+i = cgroup2_root()
+
+
+print(i)
+
+def get_psi_mem_files(cgroup2_path):
+    """
+    """
+
+    path_list = []
+
+    for root, dirs, files in os.walk(cgroup2_path):
+        for file in files:
+            path = os.path.join(root, file)
+            if path.endswith('/memory.pressure'):
+                path_list.append(path)
+
+    return path_list
+
+
+if i is not None:
+    print(get_psi_mem_files(i))
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+