Adding Langsmith trace processor introduces huge latency to chat

[kmariunas]

Describe the bug

Hey, when we add a langsmith trace processor, our latency goes through the roof. We have a suspicion, that tracing is not done asynchronously. Is there a way to make it async?

This is before and after we removed langsmith (but kept openai) tracing:

Debug information

• Agents SDK version: (e.g. v0.0.6)
• Python version (e.g. Python 3.12.8)

Repro steps

from agents import (
    add_trace_processor,
)
from langsmith.wrappers import OpenAIAgentsTracingProcessor
add_trace_processor(OpenAIAgentsTracingProcessor())

Expected behavior

Tracing does not intrduce any latency to the system

[rm-openai]

@baskaryan, you added this integration - any ideas?

Tracing isn't sync. It gathers events on the same thread/task, but the expectation is that exports occur in the background.