如何计算 Django 中视图的执行时间？

Question

这是我的观点：

def post_detail(request, year, month, day, slug):
post = get_object_or_404(models.Post, slug=slug, status='published',
                         publish__year=year, publish__month=month,
                         publish__day=day)

comment_form = forms.CommentForm()
comments = post.comments.filter(active=True)

context = {
    'comments': comments,
    'post': post,
    'comment_form': comment_form,
}
return render(request, 'blog/post_detail.html', context)

有什么方法可以计算 Django 中的执行时间吗？

Answer 1

您可以编写一个计时器装饰器来在控制台中输出结果

from functools import wraps
import time

def timer(func):
    """helper function to estimate view execution time"""

    @wraps(func)  # used for copying func metadata
    def wrapper(*args, **kwargs):
        # record start time
        start = time.time()

        # func execution
        result = func(*args, **kwargs)
        
        duration = (time.time() - start) * 1000
        # output execution time to console
        print('view {} takes {:.2f} ms'.format(
            func.__name__, 
            duration
            ))
        return result
    return wrapper

@timer
def your_view(request):
    pass