On 15 October 2010 23:49, syrnick <[email protected]> wrote: > Hi all, > > We're trying to upgrade to DM 1.0.2 to keep up with progress. After > upgrading the db and the code we ran into a huge performance issue. > Everything was working 2-3 times slower. I don't know the reason, but > we had to roll back and return back to investigation. > > The time difference is easily reproducible on our unit tests, but I > can't completely isolate it. I have these tests so far: > http://gist.github.com/629001 > . They clearly show 2x performance degradation in saving and reading > json, but not much else. > > As I've seen around 3x slowdown, I can't say I nailed the root cause. > > Any thoughts on what could be the cause and suggestions on how to > isolate the problem are greatly appreciated. > > Thanks! > Alex > > > > I've seen similar numbers some time ago with my benchmarks (only tested on JRuby). DM was ~2x times slower than AR, Sequel in similar test cases.
-- pozdrawiam / best regards, Piotr Gęga (pietia) microblog: http://twitter.com/piotrgega open source: http://www.github.com/pietia linkedin: http://pl.linkedin.com/in/piotrgega goldenline: http://www.goldenline.pl/piotr-gega -- You received this message because you are subscribed to the Google Groups "DataMapper" 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/datamapper?hl=en.
