diff --git a/.github/workflows/pull.yml b/.github/workflows/pull.yml
index 38e79e874e1..e1fa14e66e9 100644
--- a/.github/workflows/pull.yml
+++ b/.github/workflows/pull.yml
@@ -729,12 +729,12 @@ jobs:
         setup_script_args=""
         if [[ ${{ matrix.os}} == "bare_metal" ]]; then
           toolchain_prefix=arm-none-eabi-
-          threshold="34000" # GCC 15.2, minimal PAL + nano baseline: 33372 bytes, 2026-10-27
+          threshold="35000" # GCC 15.2, minimal PAL + nano baseline: 32180 bytes, 2026-10-28
           toolchain_cmake=examples/arm/ethos-u-setup/arm-none-eabi-gcc.cmake
         elif [[ ${{ matrix.os}} == "zephyr-preset" ]]; then
           setup_script_args="--target-toolchain zephyr"
           toolchain_prefix=arm-zephyr-eabi-
-          threshold="57000" # Zephyr SDK 1.0.1, minimal PAL baseline: 55800 bytes, 2026-10-27
+          threshold="50000" # Zephyr SDK 1.0.1, minimal PAL baseline: 46112 bytes, 2026-10-28
           toolchain_cmake=examples/zephyr/x86_64-linux-arm-zephyr-eabi-gcc.cmake
         else
           echo "Unsupported OS selection: ${{ matrix.os }}"
diff --git a/runtime/executor/method.cpp b/runtime/executor/method.cpp
index 9b8b9e34008..fc46fc29814 100644
--- a/runtime/executor/method.cpp
+++ b/runtime/executor/method.cpp
@@ -13,7 +13,7 @@
 #include <array>
 #include <cinttypes> // @donotremove
 #include <cstdint>
-#include <cstdio>
+#include <cstring>
 
 #include <executorch/runtime/backend/interface.h>
 #include <executorch/runtime/core/event_tracer_hooks.h>
@@ -769,26 +769,29 @@ Error populate_operator_name(
 
   ET_CHECK_OR_RETURN_ERROR(
       op->name() != nullptr, InvalidProgram, "Missing operator name");
-  int cx = snprintf(
-      operator_name,
-      operator_name_size,
-      "%s%s%s",
-      op->name()->c_str(),
-      // Don't append any overload if the overload string is empty.
-      has_overload ? "." : "",
-      has_overload ? op->overload()->c_str() : "");
-  ET_CHECK_OR_RETURN_ERROR(cx >= 0, Internal, "snprintf failed: %d", cx);
+  // Avoid pulling printf formatting code into builds that otherwise omit it.
+  const size_t name_size = strlen(op->name()->c_str());
+  const size_t overload_size =
+      has_overload ? strlen(op->overload()->c_str()) : 0;
+  const uint64_t needed_size = static_cast<uint64_t>(name_size) +
+      overload_size + (has_overload ? 1 : 0) + 1;
   ET_CHECK_OR_RETURN_ERROR(
-      static_cast<size_t>(cx) < operator_name_size,
+      needed_size <= operator_name_size,
       Internal,
-      "Operator name %s%s%s with length %d "
-      "truncated to %" ET_PRIsize_t " due to internal buffer limit.",
+      "Operator name %s%s%s exceeds internal buffer limit of %" ET_PRIsize_t,
       op->name()->c_str(),
       has_overload ? "." : "",
       has_overload ? op->overload()->c_str() : "",
-      cx,
       operator_name_size);
 
+  memcpy(operator_name, op->name()->c_str(), name_size);
+  size_t pos = name_size;
+  if (has_overload) {
+    operator_name[pos++] = '.';
+    memcpy(operator_name + pos, op->overload()->c_str(), overload_size);
+    pos += overload_size;
+  }
+  operator_name[pos] = '\0';
   return Error::Ok;
 }
 } // namespace