feat: anonymised telemetry to track usage patterns

fam/llm/fast_inference.py

@@ -29,6 +29,10 @@
     get_device,
     normalize_text,
 )
+from fam.telemetry import TelemetryEvent
+from fam.telemetry.posthog import PosthogClient
+
+posthog = PosthogClient()  # see fam/telemetry/README.md for more information
 
 
 class TTS:
@@ -68,7 +72,7 @@ def __init__(
         os.makedirs(self.output_dir, exist_ok=True)
         if first_stage_path:
             print(f"Overriding first stage checkpoint via provided model: {first_stage_path}")
-        first_stage_ckpt = first_stage_path or f"{self._model_dir}/first_stage.pt"
+        self._first_stage_ckpt = first_stage_path or f"{self._model_dir}/first_stage.pt"
 
         second_stage_ckpt_path = f"{self._model_dir}/second_stage.pt"
         config_second_stage = InferenceConfig(
@@ -90,13 +94,16 @@ def __init__(
         self.precision = {"float16": torch.float16, "bfloat16": torch.bfloat16}[self._dtype]
         self.model, self.tokenizer, self.smodel, self.model_size = build_model(
             precision=self.precision,
-            checkpoint_path=Path(first_stage_ckpt),
+            checkpoint_path=Path(self._first_stage_ckpt),
             spk_emb_ckpt_path=Path(f"{self._model_dir}/speaker_encoder.pt"),
             device=self._device,
             compile=True,
             compile_prefill=True,
             quantisation_mode=quantisation_mode,
         )
+        self._seed = seed
+        self._quantisation_mode = quantisation_mode
+        self._model_name = model_name
 
     def synthesise(self, text: str, spk_ref_path: str, top_p=0.95, guidance_scale=3.0, temperature=1.0) -> str:
         """
@@ -156,8 +163,28 @@ def synthesise(self, text: str, spk_ref_path: str, top_p=0.95, guidance_scale=3.
         time_to_synth_s = time.time() - start
         audio, sr = librosa.load(str(wav_file) + ".wav")
         duration_s = librosa.get_duration(y=audio, sr=sr)
+        real_time_factor = time_to_synth_s / duration_s
         print(f"\nTotal time to synth (s): {time_to_synth_s}")
-        print(f"Real-time factor: {time_to_synth_s / duration_s:.2f}")
+        print(f"Real-time factor: {real_time_factor:.2f}")
+
+        posthog.capture(
+            TelemetryEvent(
+                name="user_ran_tts",
+                properties={
+                    "text": text,
+                    "temperature": temperature,
+                    "guidance_scale": guidance_scale,
+                    "top_p": top_p,
+                    "spk_ref_path": spk_ref_path,
+                    "speech_duration_s": duration_s,
+                    "time_to_synth_s": time_to_synth_s,
+                    "real_time_factor": round(real_time_factor, 2),
+                    "quantisation_mode": self._quantisation_mode,
+                    "seed": self._seed,
+                    "first_stage_ckpt": self._first_stage_ckpt,
+                },
+            )
+        )
 
         return str(wav_file) + ".wav"
 

fam/llm/finetune.py

@@ -4,8 +4,8 @@
 
 import itertools
 import math
-from pathlib import Path
 import time
+from pathlib import Path
 from typing import Any, Dict, Optional
 
 import click
@@ -19,7 +19,12 @@
 from fam.llm.model import GPT, GPTConfig
 from fam.llm.preprocessing.audio_token_mode import get_params_for_mode
 from fam.llm.preprocessing.data_pipeline import get_training_tuple
+from fam.llm.utils import hash_dictionary
+from fam.telemetry import TelemetryEvent
+from fam.telemetry.posthog import PosthogClient
 
+# see fam/telemetry/README.md for more information
+posthog = PosthogClient()
 
 dtype: Literal["bfloat16", "float16", "tfloat32", "float32"] = (
     "bfloat16" if torch.cuda.is_available() and torch.cuda.is_bf16_supported() else "float16"
@@ -50,11 +55,13 @@
     ckpts_save_dir = ckpts_base_dir / out_dir
     os.makedirs(ckpts_save_dir, exist_ok=True)
 
+
 def get_globals_state():
-    """ Return entirety of configuration global state which can be used for logging. """
+    """Return entirety of configuration global state which can be used for logging."""
     config_keys = [k for k, v in globals().items() if not k.startswith("_") and isinstance(v, (int, float, bool, str))]
     return {k: globals()[k] for k in config_keys}  # will be useful for logging
 
+
 model_args: dict = dict(
     n_layer=n_layer,
     n_head=n_head,
@@ -72,6 +79,7 @@ def get_globals_state():
     swiglu_multiple_of=swiglu_multiple_of,
 )  # start with model_args from command line
 
+
 def strip_prefix(state_dict: Dict[str, Any], unwanted_prefix: str):
     # TODO: this also appears in fast_inference_utils._load_model, it should be moved to a common place.
     for k, v in list(state_dict.items()):
@@ -146,19 +154,13 @@ def main(train: Path, val: Path, model_id: str, ckpt: Optional[Path], spk_emb_ck
         allow_ops_in_compiled_graph()
         model = torch.compile(model)  # type: ignore
 
-    def estimate_loss(dataset, iters: int=eval_iters):
-        """ Estimate loss on a dataset by running on `iters` batches. """
+    def estimate_loss(dataset, iters: int = eval_iters):
+        """Estimate loss on a dataset by running on `iters` batches."""
         if dataset is None:
             return torch.nan
         losses = []
         for _, batch in zip(tqdm(range(iters)), dataset):
-            X, Y, SE = get_training_tuple(
-                batch,
-                causal,
-                num_codebooks,
-                speaker_cond,
-                device
-            )
+            X, Y, SE = get_training_tuple(batch, causal, num_codebooks, speaker_cond, device)
             with ctx:
                 _, loss = model(X, Y, speaker_embs=SE, speaker_emb_mask=None)
             losses.append(loss.item())
@@ -206,9 +208,7 @@ def get_lr(it):
         mode_params["ctx_window"],
         device,
     )
-    train_dataloader = itertools.cycle(
-        DataLoader(train_dataset, batch_size, shuffle=True)
-    )
+    train_dataloader = itertools.cycle(DataLoader(train_dataset, batch_size, shuffle=True))
     train_data = iter(train_dataloader)
     # we do not perform any explicit checks for dataset overlap & leave it to the user
     # to handle this
@@ -219,13 +219,7 @@ def get_lr(it):
     eval_train_data = DataLoader(train_dataset, batch_size, shuffle=True)
 
     batch = next(train_data)
-    X, Y, SE = get_training_tuple(
-        batch,
-        causal,
-        num_codebooks,
-        speaker_cond,
-        device
-    )
+    X, Y, SE = get_training_tuple(batch, causal, num_codebooks, speaker_cond, device)
 
     t0 = time.time()
     local_iter_num = 0  # number of iterations in the lifetime of this process
@@ -244,11 +238,29 @@ def get_lr(it):
     for param in model.parameters():
         param.requires_grad = False
     for param in itertools.chain(
-        model.transformer.ln_f.parameters(), model.transformer.h[last_n_blocks_to_finetune*-1:].parameters()
+        model.transformer.ln_f.parameters(), model.transformer.h[last_n_blocks_to_finetune * -1 :].parameters()
     ):
         param.requires_grad = True
     print(f"After freezing excl. last {last_n_blocks_to_finetune} transformer blocks: {trainable_count(model)=}...")
 
+    # log start of finetuning event
+    properties = {
+        **config,
+        **model_args,
+        "train": str(train),
+        "val": str(val),
+        "model_id": model_id,
+        "ckpt": ckpt,
+        "spk_emb_ckpt": spk_emb_ckpt,
+    }
+    finetune_jobid = hash_dictionary(properties)
+    posthog.capture(
+        TelemetryEvent(
+            name="user_started_finetuning",
+            properties={"finetune_jobid": finetune_jobid, **properties},
+        )
+    )
+
     while True:
         lr = get_lr(iter_num) if decay_lr else learning_rate
         for param_group in optimizer.param_groups:
@@ -278,7 +290,9 @@ def get_lr(it):
                 if losses["val"] < best_val_loss:
                     best_val_loss = losses["val"]
                     if iter_num > 0:
-                        ckpt_save_name = ckpt_save_name.replace(".pt", f"_bestval_{best_val_loss}".replace(".", "_") + ".pt")
+                        ckpt_save_name = ckpt_save_name.replace(
+                            ".pt", f"_bestval_{best_val_loss}".replace(".", "_") + ".pt"
+                        )
                         save_checkpoint = True
 
                 save_checkpoint = save_checkpoint or iter_num % save_interval == 0
@@ -352,7 +366,14 @@ def get_lr(it):
 
             # termination conditions
             if iter_num > max_iters:
-                break
+                # log end of finetuning event
+                posthog.capture(
+                    TelemetryEvent(
+                        name="user_completed_finetuning",
+                        properties={"finetune_jobid": finetune_jobid},
+                    )
+                )
+
 
 if __name__ == "__main__":
     main()

fam/llm/inference.py

@@ -402,8 +402,8 @@ def get_cached_file(file_or_uri: str):
         # hash the file path to get the cache name
         _cache_name = "audio_" + hashlib.md5(file_or_uri.encode("utf-8")).hexdigest() + ext
 
-        os.makedirs(os.path.expanduser("~/.cache/fam/"), exist_ok=True)
-        cache_path = os.path.expanduser(f"~/.cache/fam/{_cache_name}")
+        os.makedirs(os.path.expanduser("~/.cache/metavoice/"), exist_ok=True)
+        cache_path = os.path.expanduser(f"~/.cache/metavoice/{_cache_name}")
 
         if not os.path.exists(cache_path):
             command = f"curl -o {cache_path} {file_or_uri}"

fam/llm/utils.py

@@ -1,3 +1,5 @@
+import hashlib
+import json
 import os
 import re
 import subprocess
@@ -87,3 +89,15 @@ def get_default_dtype() -> str:
 
 def get_device() -> str:
     return "cuda" if torch.cuda.is_available() else "cpu"
+
+
+def hash_dictionary(d: dict):
+    # Serialize the dictionary into JSON with sorted keys to ensure consistency
+    serialized = json.dumps(d, sort_keys=True)
+    # Encode the serialized string to bytes
+    encoded = serialized.encode()
+    # Create a hash object (you can also use sha1, sha512, etc.)
+    hash_object = hashlib.sha256(encoded)
+    # Get the hexadecimal digest of the hash
+    hash_digest = hash_object.hexdigest()
+    return hash_digest

fam/telemetry/README.md

@@ -0,0 +1,5 @@
+# Telemetry
+
+This directory holds all the telemetry for MetaVoice. We, MetaVoice, capture anonymized telemetry to understand usage patterns.
+
+If you prefer to opt out of telemetry, set `ANONYMIZED_TELEMETRY=False` in an .env file at the root level of this repo.

fam/telemetry/__init__.py

@@ -0,0 +1,43 @@
+import abc
+from abc import abstractmethod
+from dataclasses import dataclass
+import os
+import uuid
+from pathlib import Path
+
+
+@dataclass(frozen=True)
+class TelemetryEvent:
+    name: str
+    properties: dict
+
+
+class TelemetryClient(abc.ABC):
+    USER_ID_PATH = str(Path.home() / ".cache" / "metavoice" / "telemetry_user_id")
+    UNKNOWN_USER_ID = "UNKNOWN"
+    _curr_user_id = None
+
+    @abstractmethod
+    def capture(self, event: TelemetryEvent) -> None:
+        pass
+
+    @property
+    def user_id(self) -> str:
+        if self._curr_user_id:
+            return self._curr_user_id
+
+        # File access may fail due to permissions or other reasons. We don't want to
+        # crash so we catch all exceptions.
+        try:
+            if not os.path.exists(self.USER_ID_PATH):
+                os.makedirs(os.path.dirname(self.USER_ID_PATH), exist_ok=True)
+                with open(self.USER_ID_PATH, "w") as f:
+                    new_user_id = str(uuid.uuid4())
+                    f.write(new_user_id)
+                self._curr_user_id = new_user_id
+            else:
+                with open(self.USER_ID_PATH, "r") as f:
+                    self._curr_user_id = f.read()
+        except Exception:
+            self._curr_user_id = self.UNKNOWN_USER_ID
+        return self._curr_user_id

fam/telemetry/posthog.py

@@ -0,0 +1,40 @@
+import logging
+import os
+import sys
+
+from dotenv import load_dotenv
+from posthog import Posthog
+
+from fam.telemetry import TelemetryClient, TelemetryEvent
+
+load_dotenv()
+logger = logging.getLogger(__name__)
+logging.basicConfig(level=logging.INFO, handlers=[logging.StreamHandler(sys.stdout), logging.StreamHandler(sys.stderr)])
+
+
+class PosthogClient(TelemetryClient):
+    def __init__(self):
+        self._posthog = Posthog(
+            project_api_key="phc_tk7IUlV7Q7lEa9LNbXxyC1sMWlCqiW6DkHyhJrbWMCS", host="https://eu.posthog.com"
+        )
+
+        if not os.getenv("ANONYMIZED_TELEMETRY", True) or "pytest" in sys.modules:
+            self._posthog.disabled = True
+            logger.info("Anonymized telemetry disabled. See fam/telemetry/README.md for more information.")
+        else:
+            logger.info("Anonymized telemetry enabled. See fam/telemetry/README.md for more information.")
+
+        posthog_logger = logging.getLogger("posthog")
+        posthog_logger.disabled = True  # Silence posthog's logging
+
+        super().__init__()
+
+    def capture(self, event: TelemetryEvent) -> None:
+        try:
+            self._posthog.capture(
+                self.user_id,
+                event.name,
+                {**event.properties},
+            )
+        except Exception as e:
+            logger.error(f"Failed to send telemetry event {event.name}: {e}")