On Fri, Apr 27, 2012 at 6:37 PM, Emmanuel Lécharny <[email protected]>wrote:
> Hi guys, > > so this is the end of the week, and I have done some experiments with my > Index branch (this branch has been created to remove the oneLevel and > subLevel index, and to use the RdnIndex instead). > > First of all, the server is working just fine without those two indexes. I > still have on-going improvements to get the full advantage of those removal > (currently, we have some issues with JDBM when we want to update the keys > to stoe the number of children/descendant each entry has, but this is > something we are discussing atm), but baseline, the perfs are pretty much > on par with trunks. > > That includes searches, not only modifications. > > Today, I did some profiling with the latest version of Yourkit, and I was > able to tweak the server here and there to get some speed improvement. Here > are the results I get : > > on Trunk : > > OBJECT level search, 19 680 entries returned per second (we only get one > entry) > ONE level search, 27 900 entries returned per second (we get five entries) > SUBTREE level search, 17870 entries returned per second (we get 10 entries) > > Keep in mind that those tests are done with an embedded server, it does > not go through any network layer. So to speak, it gives the raw caacity of > the server to deliver entries, no more. > > On the branch now : > OBJECT level search, 33 373 entries returned per second (we only get one > entry) : this is a 70% improvement ! > ONE level search, 45 695 entries returned per second (we get five > entries): this is a 63% improvement ! > SUBTREE level search, 35 300 entries returned per second (we get 10 > entries): this is a 97% improvement !!! > > This is awesome. Nice job man! -- Best Regards, -- Alex
