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Update api.py 同步方法异步化,防止请求之间在服务层相互阻塞,增加api调用的并发性能 #1340

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Update api.py 同步方法异步化,防止请求之间在服务层相互阻塞,增加api调用的并发性能 #1340

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044cf32
Update api.py
aleimu Jul 18, 2023
6ba39b4
Update api.py
aleimu Jul 18, 2023
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41 changes: 23 additions & 18 deletions api.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
from transformers import AutoTokenizer, AutoModel
import uvicorn, json, datetime
import torch
import asyncio

DEVICE = "cuda"
DEVICE_ID = "0"
Expand Down Expand Up @@ -29,24 +30,28 @@ async def create_item(request: Request):
max_length = json_post_list.get('max_length')
top_p = json_post_list.get('top_p')
temperature = json_post_list.get('temperature')
response, history = model.chat(tokenizer,
prompt,
history=history,
max_length=max_length if max_length else 2048,
top_p=top_p if top_p else 0.7,
temperature=temperature if temperature else 0.95)
now = datetime.datetime.now()
time = now.strftime("%Y-%m-%d %H:%M:%S")
answer = {
"response": response,
"history": history,
"status": 200,
"time": time
}
log = "[" + time + "] " + '", prompt:"' + prompt + '", response:"' + repr(response) + '"'
print(log)
torch_gc()
return answer

def _sync_chat(history):
response, history = model.chat(tokenizer,
prompt,
history=history,
max_length=max_length if max_length else 2048,
top_p=top_p if top_p else 0.7,
temperature=temperature if temperature else 0.95)
now = datetime.datetime.now()
time = now.strftime("%Y-%m-%d %H:%M:%S")
answer = {
"response": response,
"history": history,
"status": 200,
"time": time
}
log = "[" + time + "] " + '", prompt:"' + prompt + '", response:"' + repr(response) + '"'
print(log)
torch_gc()
return answer

return await asyncio.to_thread(_sync_chat, history=history)


if __name__ == '__main__':
Expand Down