Question

我查看了Google Chrome控制台的ajax请求时间。我在后端测量，mysql查询执行5毫秒。在Chrome控制台，我看到this picture

TTFB时间333.07毫秒。我有9个gunicorn worker，Django框架和REST框架。什么需要这么多时间？

例如，我的观点：

@api_view(['GET'])
def get_gallery(request, slug):
    query = Gallery.objects.filter(route__slug=slug, route__is_active=True)

    return JSONResponse(GallerySerializer(query, many=True).data)


class JSONResponse(HttpResponse):
    """
    An HttpResponse that renders its content into JSON.
    """
    def __init__(self, data, **kwargs):
        content = JSONRenderer().render(data)
        kwargs['content_type'] = 'application/json; charset=utf-8'
        super(JSONResponse, self).__init__(content, **kwargs)

我的序列化器：

class GallerySerializer(ModelSerializerWithAuth):
    image = serializers.ImageField(use_url=False)
    thumb = serializers.ImageField(use_url=False)

    class Meta:
        model = Gallery
        fields = ('id', 'image', 'thumb')

gunicorn配置：

bind = '127.0.0.1:9090'
errorlog = '/path/to/log'
timeout=120
user = 'user'

import multiprocessing
workers = multiprocessing.cpu_count() * 2 + 1

Answer 1

可能是时间格式化答案。默认情况下，响应是在内存中构建并发送到客户端。

可能的解决方案/解决方法是使用StreamingHttpResponse

Django + Gunicorn大TTFB时间

1 个答案: