Hi Alex, Does your script load up a lot of modules when it starts? It's possible that these are the CPU warnings you are seeing. You may be seeing them inconsistently since this would only happen when a new interpreter for your script is fired up. The basic process is described here: http://code.google.com/appengine/docs/python/appcaching.html
-Marzia On Sat, Dec 6, 2008 at 9:30 AM, Sharp-Developer.Net < [EMAIL PROTECTED]> wrote: > > Hi, > > I've enabled complete page content caching and surprisingly see high > CPU for requests that utilize the memcache with a single call to the > memcache. > > As you could see from log & code below there are just single call to > memcache and a call to users.get_current_user() > > I have a Django middleware handler as well. But as I understand it > should work on every request and it's fairly simple - doing > configuration basing on request parameters - no DB calls. > > Any thouts on reason of such a big difference in numbers? > -- > Alex > http://sharp-developer.net/ > > Example from log: > =========================================================== > 1. 12-06 09:11AM 17.294 / 200 1097ms 3725mcycles 27kb > 86.41.125.175 - - [06/12/2008:09:11:18 -0800] "GET / HTTP/1.1" > 200 27103 - - > > 2. D 12-06 09:11AM 18.388 > Page taken from MEMCACHE by key: page5/ > > -------------------------------------------------------------------------------------------------------------------- > what strange is that sometimes I get very good results for the same > request: > > -------------------------------------------------------------------------------------------------------------------- > 1. 12-06 09:22AM 40.639 / 200 15ms 14mcycles 27kb > 86.41.125.175 - - [06/12/2008:09:22:40 -0800] "GET / HTTP/1.1" > 200 27103 - - > > 2. D 12-06 09:22AM 40.650 > Page taken from MEMCACHE by key: page5/ > =========================================================== > > > where code for caching is: > > ==================== > @cache.memorize_page() > def index(request): > # some code here > return render_to_response('root_index.html', > payload, > context_instance=RequestContext > (request)) > def memorize_page(name=None, time=60*60*12): > def memorize_fn(fn): > def new_fn(*a, **kw): > request = a[0] > # We are caching whole page just for GET requests > if request.method != "GET": > return fn(*a, **kw) > prefix = "page5" > key = "%s%s" % (prefix, request.path) > user = get_current_user() > if user: > key = "u=%s/%s" % (user.key(), key) > if request.GET.has_key("cache") and request.GET["cache"] > == "reset": > memcache.delete(key) > LOG.debug("Page delete from MEMCACHE by key: %s", key) > else: > response_content = memcache.get(key) > if response_content is not None: > LOG.debug("Page taken from MEMCACHE by key: %s", > key) > return HttpResponse(content=response_content) > #return res > > res = fn(*a, **kw) > memcache.set(key, res.content, time=time) > LOG.debug("Page stored to MEMCACHE with key: %s" % key) > return res > return new_fn > return memorize_fn > ---------------------------------------- > def get_current_user(): > guser = users.get_current_user() > if not guser: > return None > #my code here for authorized users > # in cache use case we work with unauthorized request > ==================== > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
