diff --git a/copyparty/authsrv.py b/copyparty/authsrv.py
index 3d92b7e1..01b79884 100644
--- a/copyparty/authsrv.py
+++ b/copyparty/authsrv.py
@@ -228,21 +228,19 @@ class VFS(object):
             for f in [{"vp": v, "ap": a, "st": n[1]} for v, a, n in files]:
                 yield f
 
-    def user_tree(self, uname, readable=False, writable=False, admin=False):
-        ret = []
-        opt1 = readable and (uname in self.uread or "*" in self.uread)
-        opt2 = writable and (uname in self.uwrite or "*" in self.uwrite)
-        if admin:
-            if opt1 and opt2:
-                ret.append(self.vpath)
-        else:
-            if opt1 or opt2:
-                ret.append(self.vpath)
+    def user_tree(self, uname, readable, writable, admin):
+        is_readable = False
+        if uname in self.uread or "*" in self.uread:
+            readable.append(self.vpath)
+            is_readable = True
+
+        if uname in self.uwrite or "*" in self.uwrite:
+            writable.append(self.vpath)
+            if is_readable:
+                admin.append(self.vpath)
 
         for _, vn in sorted(self.nodes.items()):
-            ret.extend(vn.user_tree(uname, readable, writable, admin))
-
-        return ret
+            vn.user_tree(uname, readable, writable, admin)
 
 
 class AuthSrv(object):
diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index 989f52d4..1554956f 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -153,10 +153,8 @@ class HttpCli(object):
 
         pwd = uparam.get("pw")
         self.uname = self.auth.iuser.get(pwd, "*")
-        if self.uname:
-            self.rvol = self.auth.vfs.user_tree(self.uname, readable=True)
-            self.wvol = self.auth.vfs.user_tree(self.uname, writable=True)
-            self.avol = self.auth.vfs.user_tree(self.uname, True, True, True)
+        self.rvol, self.wvol, self.avol = [[], [], []]
+        self.auth.vfs.user_tree(self.uname, self.rvol, self.wvol, self.avol)
 
         ua = self.headers.get("user-agent", "")
         self.is_rclone = ua.startswith("rclone/")
diff --git a/scripts/profile.py b/scripts/profile.py
new file mode 100644
index 00000000..baf0da2f
--- /dev/null
+++ b/scripts/profile.py
@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+
+import sys
+
+sys.path.insert(0, ".")
+cmd = sys.argv[1]
+
+if cmd == "cpp":
+    from copyparty.__main__ import main
+
+    argv = ["__main__", "-v", "srv::r", "-v", "../../yt:yt:r"]
+    main(argv=argv)
+
+elif cmd == "test":
+    from unittest import main
+
+    argv = ["__main__", "discover", "-s", "tests"]
+    main(module=None, argv=argv)
+
+else:
+    raise Exception()
+
+# import dis; print(dis.dis(main))
+
+
+# macos:
+#   option1) python3.9 -m pip install --user -U vmprof==0.4.9
+#   option2) python3.9 -m pip install --user -U https://github.com/vmprof/vmprof-python/archive/refs/heads/master.zip
+#
+# python -m vmprof -o prof --lines ./scripts/profile.py test
+
+# linux: ~/.local/bin/vmprofshow prof tree | grep -vF '[1m  0.'
+# macos: ~/Library/Python/3.9/bin/vmprofshow prof tree | grep -vF '[1m  0.'
+#   win: %appdata%\..\Roaming\Python\Python39\Scripts\vmprofshow.exe prof tree
diff --git a/tests/test_httpcli.py b/tests/test_httpcli.py
index 7d4edcc4..7e740763 100644
--- a/tests/test_httpcli.py
+++ b/tests/test_httpcli.py
@@ -10,12 +10,11 @@ import pprint
 import tarfile
 import tempfile
 import unittest
-
 from argparse import Namespace
-from copyparty.authsrv import AuthSrv
-from copyparty.httpcli import HttpCli
 
 from tests import util as tu
+from copyparty.authsrv import AuthSrv
+from copyparty.httpcli import HttpCli
 
 
 def hdr(query):
diff --git a/tests/test_vfs.py b/tests/test_vfs.py
index 633eca35..de15a91e 100644
--- a/tests/test_vfs.py
+++ b/tests/test_vfs.py
@@ -7,13 +7,12 @@ import json
 import shutil
 import tempfile
 import unittest
-
 from textwrap import dedent
 from argparse import Namespace
-from copyparty.authsrv import AuthSrv
-from copyparty import util
 
 from tests import util as tu
+from copyparty.authsrv import AuthSrv
+from copyparty import util
 
 
 class Cfg(Namespace):
diff --git a/tests/util.py b/tests/util.py
index da5537b9..1a24ac2e 100644
--- a/tests/util.py
+++ b/tests/util.py
@@ -1,17 +1,36 @@
 import os
+import sys
 import time
 import shutil
 import jinja2
 import tempfile
+import platform
 import subprocess as sp
 
-from copyparty.util import Unrecv
 
+WINDOWS = platform.system() == "Windows"
+ANYWIN = WINDOWS or sys.platform in ["msys"]
+MACOS = platform.system() == "Darwin"
 
 J2_ENV = jinja2.Environment(loader=jinja2.BaseLoader)
 J2_FILES = J2_ENV.from_string("{{ files|join('\n') }}")
 
 
+def nah(*a, **ka):
+    return False
+
+
+if MACOS:
+    import posixpath
+
+    posixpath.islink = nah
+    os.path.islink = nah
+    # 25% faster; until any tests do symlink stuff
+
+
+from copyparty.util import Unrecv
+
+
 def runcmd(*argv):
     p = sp.Popen(argv, stdout=sp.PIPE, stderr=sp.PIPE)
     stdout, stderr = p.communicate()