thx for the source, now i will study a bit(googleeee) to learn how to "memcache" in JAVA
and then i show the results, "My app without and with Memcache" 2012/2/1 Brandon Wirtz <[email protected]> > > http://bjk5.com/post/11766098283/app-engine-performance-hacks-youll-probably-never > **** > > ** ** > > *Brandon Wirtz > *BlackWaterOps: President / Lead Mercenary **** > > [image: Description: > http://www.linkedin.com/img/signature/bg_slate_385x42.jpg]**** > > *Work:* 510-992-6548 > *Toll Free:* 866-400-4536 **** > > *IM:* [email protected] (Google Talk) > *Skype:* drakegreene > *YouTube:* BlackWaterOpsDotCom<http://www.youtube.com/blackwateropsdotcom> > ** > ****** > > BlackWater Ops <http://www.blackwaterops.com/> > > Cloud On A String Mastermind Group <http://www.cloudonastring.com/>* > > ***** > > ** ** > > ** ** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Leandro Rezende > *Sent:* Wednesday, February 01, 2012 4:38 AM > > *To:* [email protected] > *Subject:* Re: [google-appengine] Saving Datastore Read**** > > ** ** > > Thanks Brandon, **** > > So before i "GetObjectbyId()", i will search at Memcache, if the record > isnt there, i will "GetoBjectById()" to get data, and them store it into > Memcache.**** > > ** ** > > 2012/2/1 Brandon Wirtz <[email protected]>**** > > Memcache is per App. All instances of an app will share the memcahce so > if instance 1 writes, instance 3 can read.**** > > **** > > *Brandon Wirtz > *BlackWaterOps: President / Lead Mercenary **** > > [image: Description: > http://www.linkedin.com/img/signature/bg_slate_385x42.jpg]**** > > *Work:* 510-992-6548 > *Toll Free:* 866-400-4536 **** > > *IM:* [email protected] (Google Talk) > *Skype:* drakegreene > *YouTube:* BlackWaterOpsDotCom<http://www.youtube.com/blackwateropsdotcom> > **** > > BlackWater Ops <http://www.blackwaterops.com/> > > Cloud On A String Mastermind Group <http://www.cloudonastring.com/>**** > > **** > > **** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Leandro Rezende > *Sent:* Wednesday, February 01, 2012 3:28 AM > *To:* [email protected] > *Subject:* Re: [google-appengine] Saving Datastore Read**** > > **** > > Thx for the answer Robert, i was thinking about Memcache too, but i never > implemented it.**** > > **** > > Do u know if the data cached on memcache is public for every instance? or > its "private" for each browser user?**** > > **** > > thank you**** > > 2012/2/1 Robert Kluin <[email protected]>**** > > Hi Leandro, > Think about the relative frequency of events. It is probably > massively more common to list game info than for a player to change > their name / image, especially once they have a lot of data. If > that's the case, denormalizing might be a very good choice. If > someone does change their name/image you can easily use the taskqueue > to update all their game info. > > Depending on the data, you may also be able to keep the normalized > model but reduce the number of reads. Just gather a list of all > entities you need to fetch, remove any duplicates, then get the info > from those entities. If there are some players who's stuff is very > often displayed, use memcache to store their details. > > > Robert**** > > > > > > > On Tue, Jan 31, 2012 at 07:51, Leandro Rezende > <[email protected]> wrote: > > if i have 2 "Tables", > > > > "Table Player" , (Fields - PlayerKey, PlayerName, PlayerUrlPhoto) > > "Table PlayerGames", (Fields - PlayerGameKey, PlayerKey, GameDate) > > > > if i wanna list all games, i will create a query in "PlayerGames", and to > > show the "Players" info, i will have to "GetObjectbyID" to read > PlayerName > > and PLayerUrlPhoto. > > > > What is the best way to do this? > > > > 1 - Using GetObjectByID is the right way (spending 1 "datastore read" > more > > for each "PlayerGame" record) > > 2 - Store at "PlayerGames" the fields that i know that i will need to > list > > in the future? (as playername and playerurlphoto, Saving the "DataStore > > read" to get Player info) > > 3 - Other way... > > > > * reminding that the player can change his name and his photo, so if i > store > > the name and photo at "PlayerGames" i will have to update all the records > > too. (and will spend alot of DataStore Writes) > > > > Can someone give me a tip about this? > > > > thx > >**** > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine" group. > > To post to this group, send email to [email protected]. > > 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. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > 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.**** > > **** > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > 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.**** > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > 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.**** > > ** ** > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > 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.**** > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > 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. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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