Hi Dennis, The following document will help you about global transactions: http://sites.google.com/site/slim3appengine/#gtx
Yasuo Higa On Thu, Jun 9, 2011 at 12:33 AM, Dennis Peterson <[email protected]> wrote: > Those multi-entity transactions are definitely interesting to me. There's > some overhead but no getting around that. > A while back I was playing around with some adhoc methods to do it in a > specific case, but I suspect Slim3 is more solid and maybe faster than what > I was doing. Definitely easier. When I get a chance I want to dig in and > find out how it works. > > On Wed, Jun 8, 2011 at 10:26 AM, Mike Lawrence <[email protected]> > wrote: >> >> I get... >> >> The number of entities: 10000 >> low level 1717 millis >> slim3 1502 millis >> objectify 2970 millis >> jdo 3485 millis >> >> probably should modify this example >> to do an average of several runs >> >> one important thing to note, is slim3 allows you >> to update multiple entity types >> in a single transaction. >> not possible with the other 3 APIs >> >> >> >> On Jun 7, 4:00 am, Ian Marshall <[email protected]> wrote: >> > The low-level API does indeed look very fast. >> > >> > Just a comment on JDO: repeat runs roughly halve the JDO run time. I >> > presume that this is because for repeat runs the JDO persistence >> > manager factory has already been constructed. >> > >> > On Jun 6, 8:44 pm, DennisP <[email protected]> wrote:> I'm >> > looking at this online demo:http://slim3demo.appspot.com/performance/ >> > >> > > Sample run: >> > > The number of entities: 10000 >> > > low-level API:get: 2 millis >> > > Slim3: 2490 millis >> > > JDO: 6030 millis >> > >> > > Is the low-level API really that much faster? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine for Java" 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-java?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" 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-java?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" 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-java?hl=en.
