the same code on another app responds in 14ms
how can this be?
On Oct 13, 2011, at 10:34 AM, andreas schmid wrote:
> hi,
>
> im having serious speed issues on a site.
> my app is a python app and im using torndadoweb to serve requests.
> the actual rendered html is also store in the datastore and memcache.
> a decorator on the GET request checks first if there is a memcache entry if
> it exists it writes the html out,
> if there is no memcache entry it tries to get it from the datastore and only
> if that doesnt exist too it executes the handler.
>
> what i noticed is that the simple get from the memcache until the page
> displays on the browser takes way too long and i actually dont understand how
> this is possible.
>
> here is my stats result:
> <Screen shot 2011-10-13 at 10.22.38 AM.png>
>
> what is actually taking 6seconds here????
>
> my decorator looks like this:
>
> def cache_page(with_keywords=False, keywords=None):
> def decorator(method):
> def wrapper(self, *args, **kwargs):
> uri = self.request.uri.strip()
> cachekey = '%s|%s' %(appversion, uri)
> cached = memcache.get(cachekey,
> namespace='cachedpage|%s'%appversion)
> if cached:
> self.write(cached)
> return
> page = CachedObject.all(keys_only=True).filter('appversion =',
> appversion) \
> .filter('uri =', uri).get()
>
> if page:
> p = db.get(str(page))
> self.write(p.html)
> memcache.set(cachekey, p.html,
> namespace='cachedpage|%s'%appversion)
> return
> else:
> ...
> return method(self, *args, **kwargs)
> return wrapper
> return decorator
>
>
> this shouldnt take that long right?
> any thoughts?
>
> thank you
<<inline: Screen shot 2011-10-13 at 11.36.17 AM.png>>
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