From c2ee8e729ad53b781093790ce987e7c514655ec2 Mon Sep 17 00:00:00 2001
From: maurycy <5383+maurycy@users.noreply.github.com>
Date: Fri, 8 May 2026 13:35:46 +0200
Subject: [PATCH 1/3] eh?

---
 Modules/_remote_debugging/frames.c  | 2 +-
 Modules/_remote_debugging/threads.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Modules/_remote_debugging/frames.c b/Modules/_remote_debugging/frames.c
index bbdfce3f7201d9..7e56576392737b 100644
--- a/Modules/_remote_debugging/frames.c
+++ b/Modules/_remote_debugging/frames.c
@@ -197,7 +197,7 @@ parse_frame_object(
     char frame[SIZEOF_INTERP_FRAME];
     *address_of_code_object = 0;
 
-    Py_ssize_t bytes_read = _Py_RemoteDebug_PagedReadRemoteMemory(
+    Py_ssize_t bytes_read = _Py_RemoteDebug_ReadRemoteMemory(
         &unwinder->handle,
         address,
         SIZEOF_INTERP_FRAME,
diff --git a/Modules/_remote_debugging/threads.c b/Modules/_remote_debugging/threads.c
index 4daa5e5f92bcd9..31d83f561a8ddf 100644
--- a/Modules/_remote_debugging/threads.c
+++ b/Modules/_remote_debugging/threads.c
@@ -303,7 +303,7 @@ unwind_stack_for_thread(
     StackChunkList chunks = {0};
 
     char ts[SIZEOF_THREAD_STATE];
-    int bytes_read = _Py_RemoteDebug_PagedReadRemoteMemory(
+    int bytes_read = _Py_RemoteDebug_ReadRemoteMemory(
         &unwinder->handle, *current_tstate, (size_t)unwinder->debug_offsets.thread_state.size, ts);
     if (bytes_read < 0) {
         set_exception_cause(unwinder, PyExc_RuntimeError, "Failed to read thread state");

From 7606bb1fffe758777a7bbfb5a85f6f3c927120da Mon Sep 17 00:00:00 2001
From: maurycy <5383+maurycy@users.noreply.github.com>
Date: Fri, 8 May 2026 13:37:59 +0200
Subject: [PATCH 2/3] eh!

---
 Modules/_remote_debugging/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/_remote_debugging/module.c b/Modules/_remote_debugging/module.c
index 172f8711a2a2a0..f034fbbf15fbc9 100644
--- a/Modules/_remote_debugging/module.c
+++ b/Modules/_remote_debugging/module.c
@@ -537,7 +537,7 @@ _remote_debugging_RemoteUnwinder_get_stack_trace_impl(RemoteUnwinderObject *self
     while (current_interpreter != 0) {
         // Read interpreter state to get the interpreter ID
         char interp_state_buffer[INTERP_STATE_BUFFER_SIZE];
-        if (_Py_RemoteDebug_PagedReadRemoteMemory(
+        if (_Py_RemoteDebug_ReadRemoteMemory(
                 &self->handle,
                 current_interpreter,
                 INTERP_STATE_BUFFER_SIZE,

From 43f0dc56072acbebc6ac00c3fca624d683962c2a Mon Sep 17 00:00:00 2001
From: maurycy <5383+maurycy@users.noreply.github.com>
Date: Sat, 9 May 2026 01:30:18 +0200
Subject: [PATCH 3/3] blurp

---
 .../next/Library/2026-05-09-01-30-13.gh-issue-149584.yqz8x3.rst | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2026-05-09-01-30-13.gh-issue-149584.yqz8x3.rst

diff --git a/Misc/NEWS.d/next/Library/2026-05-09-01-30-13.gh-issue-149584.yqz8x3.rst b/Misc/NEWS.d/next/Library/2026-05-09-01-30-13.gh-issue-149584.yqz8x3.rst
new file mode 100644
index 00000000000000..491d98eeb333ec
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-05-09-01-30-13.gh-issue-149584.yqz8x3.rst
@@ -0,0 +1,2 @@
+Improve the performance of the Tachyon profiler by avoiding full page reads
+of remote process memory. Patch by Maurycy Pawłowski-Wieroński.