[GR-80215] Add focused POSIX operation benchmarks.

graalpython/com.oracle.graal.python.benchmarks/python/micro/posix-lseek.py

@@ -0,0 +1,71 @@
+# Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# The Universal Permissive License (UPL), Version 1.0
+#
+# Subject to the condition set forth below, permission is hereby granted to any
+# person obtaining a copy of this software, associated documentation and/or
+# data (collectively the "Software"), free of charge and under any and all
+# copyright rights in the Software, and any and all patent rights owned or
+# freely licensable by each licensor hereunder covering either (i) the
+# unmodified Software as contributed to or provided by such licensor, or (ii)
+# the Larger Works (as defined below), to deal in both
+#
+# (a) the Software, and
+#
+# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+# one is included with the Software each a "Larger Work" to which the Software
+# is contributed by such licensors),
+#
+# without restriction, including without limitation the rights to copy, create
+# derivative works of, display, perform, and distribute the Software and make,
+# use, sell, offer for sale, import, export, have made, and have sold the
+# Software and the Larger Work(s), and to sublicense the foregoing rights on
+# either these or other terms.
+#
+# This license is subject to the following condition:
+#
+# The above copyright notice and either this complete permission notice or at a
+# minimum a reference to the UPL must be included in all copies or substantial
+# portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+"""Reposition an open descriptor within a cached file."""
+
+import os
+import tempfile
+
+_DIRECTORY = None
+_FD = None
+
+
+def __setup__(num=40000):
+    global _DIRECTORY, _FD
+    _DIRECTORY = tempfile.TemporaryDirectory(prefix="graalpy-posix-lseek-")
+    path = os.path.join(_DIRECTORY.name, "data")
+    _FD = os.open(path, os.O_CREAT | os.O_RDWR, 0o600)
+    os.ftruncate(_FD, 4 * 1024 * 1024)
+
+
+def __benchmark__(num=40000):
+    total = 0
+    for i in range(num):
+        total += os.lseek(_FD, (i & 1023) * 4096, os.SEEK_SET)
+    return total
+
+
+def __teardown__():
+    global _DIRECTORY, _FD
+    if _FD is not None:
+        os.close(_FD)
+        _FD = None
+    if _DIRECTORY is not None:
+        _DIRECTORY.cleanup()
+        _DIRECTORY = None

graalpython/com.oracle.graal.python.benchmarks/python/micro/posix-open-close.py

@@ -0,0 +1,69 @@
+# Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# The Universal Permissive License (UPL), Version 1.0
+#
+# Subject to the condition set forth below, permission is hereby granted to any
+# person obtaining a copy of this software, associated documentation and/or
+# data (collectively the "Software"), free of charge and under any and all
+# copyright rights in the Software, and any and all patent rights owned or
+# freely licensable by each licensor hereunder covering either (i) the
+# unmodified Software as contributed to or provided by such licensor, or (ii)
+# the Larger Works (as defined below), to deal in both
+#
+# (a) the Software, and
+#
+# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+# one is included with the Software each a "Larger Work" to which the Software
+# is contributed by such licensors),
+#
+# without restriction, including without limitation the rights to copy, create
+# derivative works of, display, perform, and distribute the Software and make,
+# use, sell, offer for sale, import, export, have made, and have sold the
+# Software and the Larger Work(s), and to sublicense the foregoing rights on
+# either these or other terms.
+#
+# This license is subject to the following condition:
+#
+# The above copyright notice and either this complete permission notice or at a
+# minimum a reference to the UPL must be included in all copies or substantial
+# portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+"""Open and close an existing cached file by pathname."""
+
+import os
+import tempfile
+
+_DIRECTORY = None
+_PATH = None
+
+
+def __setup__(num=20000):
+    global _DIRECTORY, _PATH
+    _DIRECTORY = tempfile.TemporaryDirectory(prefix="graalpy-posix-open-")
+    _PATH = os.path.join(_DIRECTORY.name, "data")
+    with open(_PATH, "wb") as stream:
+        stream.write(b"x")
+
+
+def __benchmark__(num=20000):
+    for _ in range(num):
+        fd = os.open(_PATH, os.O_RDONLY)
+        os.close(fd)
+    return num
+
+
+def __teardown__():
+    global _DIRECTORY, _PATH
+    _PATH = None
+    if _DIRECTORY is not None:
+        _DIRECTORY.cleanup()
+        _DIRECTORY = None

graalpython/com.oracle.graal.python.benchmarks/python/micro/posix-operations.py

@@ -0,0 +1,97 @@
+# Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# The Universal Permissive License (UPL), Version 1.0
+#
+# Subject to the condition set forth below, permission is hereby granted to any
+# person obtaining a copy of this software, associated documentation and/or
+# data (collectively the "Software"), free of charge and under any and all
+# copyright rights in the Software, and any and all patent rights owned or
+# freely licensable by each licensor hereunder covering either (i) the
+# unmodified Software as contributed to or provided by such licensor, or (ii)
+# the Larger Works (as defined below), to deal in both
+#
+# (a) the Software, and
+#
+# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+# one is included with the Software each a "Larger Work" to which the Software
+# is contributed by such licensors),
+#
+# without restriction, including without limitation the rights to copy, create
+# derivative works of, display, perform, and distribute the Software and make,
+# use, sell, offer for sale, import, export, have made, and have sold the
+# Software and the Larger Work(s), and to sublicense the foregoing rights on
+# either these or other terms.
+#
+# This license is subject to the following condition:
+#
+# The above copyright notice and either this complete permission notice or at a
+# minimum a reference to the UPL must be included in all copies or substantial
+# portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+"""Benchmark POSIX file and directory operations; also used for native-runtime PGO training."""
+
+import os
+import tempfile
+
+
+def __benchmark__(num=2000):
+    # Repeated runtime calls make the native successors of PreInitPosixSupport's phase checks hot.
+    # Both path types also exercise the backend selection used by string conversion nodes.
+    data = b"posix-pgo"
+    with tempfile.TemporaryDirectory(prefix="graalpy-pgo-posix-") as directory:
+        filename = os.path.join(directory, "data")
+        with open(filename, "wb") as stream:
+            stream.write(data)
+        os.mkdir(os.path.join(directory, "subdir"))
+        paths = (filename, os.fsencode(filename))
+        directories = (directory, os.fsencode(directory))
+        statvfs = getattr(os, "statvfs", None)
+        fstatvfs = getattr(os, "fstatvfs", None)
+        for iteration in range(num):
+            path = paths[iteration % 2]
+            directory_path = directories[iteration % 2]
+            fd = os.open(path, os.O_RDWR)
+            try:
+                os.set_inheritable(fd, False)
+                os.lseek(fd, 0, os.SEEK_SET)
+                read_data = os.read(fd, len(data))
+                assert read_data == data
+                os.lseek(fd, 0, os.SEEK_SET)
+                written = os.write(fd, data)
+                fd_stat = os.fstat(fd)
+                path_stat = os.stat(path)
+                link_stat = os.lstat(path)
+                assert written == fd_stat.st_size == path_stat.st_size == link_stat.st_size == len(data)
+                if statvfs is not None:
+                    statvfs(path)
+                if fstatvfs is not None:
+                    fstatvfs(fd)
+            finally:
+                os.close(fd)
+
+            with os.scandir(directory_path) as entries:
+                for entry in entries:
+                    assert entry.name
+                    entry.stat()
+                    entry.is_file()
+                    entry.is_dir()
+            names = os.listdir(directory_path)
+            assert len(names) == 2
+            if os.listdir in os.supports_fd:
+                directory_fd = os.open(directory_path, os.O_RDONLY)
+                try:
+                    # listdir(fd) rewinds the directory stream before closing it.
+                    names = os.listdir(directory_fd)
+                    assert len(names) == 2
+                finally:
+                    os.close(directory_fd)
+    return num

graalpython/com.oracle.graal.python.benchmarks/python/micro/posix-read.py

@@ -0,0 +1,76 @@
+# Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# The Universal Permissive License (UPL), Version 1.0
+#
+# Subject to the condition set forth below, permission is hereby granted to any
+# person obtaining a copy of this software, associated documentation and/or
+# data (collectively the "Software"), free of charge and under any and all
+# copyright rights in the Software, and any and all patent rights owned or
+# freely licensable by each licensor hereunder covering either (i) the
+# unmodified Software as contributed to or provided by such licensor, or (ii)
+# the Larger Works (as defined below), to deal in both
+#
+# (a) the Software, and
+#
+# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+# one is included with the Software each a "Larger Work" to which the Software
+# is contributed by such licensors),
+#
+# without restriction, including without limitation the rights to copy, create
+# derivative works of, display, perform, and distribute the Software and make,
+# use, sell, offer for sale, import, export, have made, and have sold the
+# Software and the Larger Work(s), and to sublicense the foregoing rights on
+# either these or other terms.
+#
+# This license is subject to the following condition:
+#
+# The above copyright notice and either this complete permission notice or at a
+# minimum a reference to the UPL must be included in all copies or substantial
+# portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+"""Read a cached file in 4 KiB chunks with an already-open descriptor."""
+
+import os
+import tempfile
+
+_DIRECTORY = None
+_FD = None
+_CHUNK_SIZE = 4096
+
+
+def __setup__(num=16384):
+    global _DIRECTORY, _FD
+    _DIRECTORY = tempfile.TemporaryDirectory(prefix="graalpy-posix-read-")
+    path = os.path.join(_DIRECTORY.name, "data")
+    _FD = os.open(path, os.O_CREAT | os.O_RDWR, 0o600)
+    os.write(_FD, b"x" * (max(num, 1) * _CHUNK_SIZE))
+
+
+def __benchmark__(num=16384):
+    os.lseek(_FD, 0, os.SEEK_SET)
+    total = 0
+    for _ in range(num):
+        data = os.read(_FD, _CHUNK_SIZE)
+        if len(data) != _CHUNK_SIZE:
+            raise AssertionError("unexpected end of file")
+        total += data[0]
+    return total
+
+
+def __teardown__():
+    global _DIRECTORY, _FD
+    if _FD is not None:
+        os.close(_FD)
+        _FD = None
+    if _DIRECTORY is not None:
+        _DIRECTORY.cleanup()
+        _DIRECTORY = None

graalpython/com.oracle.graal.python.benchmarks/python/micro/posix-scandir.py

@@ -0,0 +1,70 @@
+# Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# The Universal Permissive License (UPL), Version 1.0
+#
+# Subject to the condition set forth below, permission is hereby granted to any
+# person obtaining a copy of this software, associated documentation and/or
+# data (collectively the "Software"), free of charge and under any and all
+# copyright rights in the Software, and any and all patent rights owned or
+# freely licensable by each licensor hereunder covering either (i) the
+# unmodified Software as contributed to or provided by such licensor, or (ii)
+# the Larger Works (as defined below), to deal in both
+#
+# (a) the Software, and
+#
+# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+# one is included with the Software each a "Larger Work" to which the Software
+# is contributed by such licensors),
+#
+# without restriction, including without limitation the rights to copy, create
+# derivative works of, display, perform, and distribute the Software and make,
+# use, sell, offer for sale, import, export, have made, and have sold the
+# Software and the Larger Work(s), and to sublicense the foregoing rights on
+# either these or other terms.
+#
+# This license is subject to the following condition:
+#
+# The above copyright notice and either this complete permission notice or at a
+# minimum a reference to the UPL must be included in all copies or substantial
+# portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+"""Iterate directory entries and materialize their names."""
+
+import os
+import tempfile
+
+_DIRECTORY = None
+
+
+def __setup__(num=1200):
+    global _DIRECTORY
+    _DIRECTORY = tempfile.TemporaryDirectory(prefix="graalpy-posix-scandir-")
+    for i in range(64):
+        path = os.path.join(_DIRECTORY.name, "file-%02d" % i)
+        with open(path, "wb"):
+            pass
+
+
+def __benchmark__(num=1200):
+    total = 0
+    for _ in range(num):
+        with os.scandir(_DIRECTORY.name) as entries:
+            for entry in entries:
+                total += len(entry.name)
+    return total
+
+
+def __teardown__():
+    global _DIRECTORY
+    if _DIRECTORY is not None:
+        _DIRECTORY.cleanup()
+        _DIRECTORY = None