TEST: add some random logging

Summary:
Testing OTEL in PyTorch to see what automation workflows break.
This change won't be commited into the main branch.

ghstack-source-id: 099915604e42c865b6de349fd66c99dc81885c3d
Pull Request resolved: #125176

BUILD.bazel

@@ -1640,6 +1640,7 @@ cc_library(
  ":torch",
  ":shm",
  "@pybind11",
+ "@io_opentelemetry_cpp//api",
  ],
 )
 

WORKSPACE

@@ -72,12 +72,20 @@ http_archive(
 )
 
 http_archive(
- name = "com_github_opentelemetry-cpp",
+ name = "io_opentelemetry_cpp",
+ sha256 = "c7e7801c9f6228751cdb9dd4724d0f04777ed53f524c8828e73bf4c9f894e0bd",
+ strip_prefix = "opentelemetry-cpp-1.14.2",
  urls = [
  "https://github.com/open-telemetry/opentelemetry-cpp/archive/refs/tags/v1.14.2.tar.gz",
  ],
 )
 
+new_local_repository(
+ name = "opentelemetry-api",
+ build_file = "//third_party:opentelemetry-cpp.BUILD",
+ path = "third_party/opentelemetry-cpp",
+)
+
 new_local_repository(
  name = "gloo",
  build_file = "//third_party:gloo.BUILD",

torch/csrc/serialization.cpp

@@ -5,6 +5,11 @@
 #include <c10/core/CPUAllocator.h>
 #include <torch/csrc/THP.h>
 #include <torch/csrc/serialization.h>
+#include <opentelemetry/common/timestamp.h>
+#include <opentelemetry/trace/tracer.h>
+#include <opentelemetry/metrics/noop.h>
+
+using opentelemetry::common::SystemTimestamp;
 
 template <class io>
 Py_ssize_t doPartialRead(io fildes, void* buf, size_t nbytes);
@@ -27,6 +32,15 @@ static Py_ssize_t doPartialPythonWrite(
 
 template <>
 Py_ssize_t doPartialRead<int>(int fildes, void* buf, size_t nbytes) {
+ opentelemetry::trace::StartSpanOptions start;
+ start.start_system_time = SystemTimestamp(std::chrono::nanoseconds(300));
+ std::shared_ptr<opentelemetry::metrics::Counter<uint64_t>> counter{
+ new opentelemetry::metrics::NoopCounter<uint64_t>("testi2", "none", "unitless")};
+
+ std::map<std::string, std::string> labels = {{"k1", "v1"}};
+ counter->Add(10, labels);
+ counter->Add(10, labels, opentelemetry::context::Context{});
+ counter->Add(2);
  return read(fildes, buf, nbytes);
 }