Re: [firebird-support] how Firebird uses the cores of the microprossesor?
HiIt is expected, as Firebird do not have parallelism on single connection. Then the best results is with high power core rather then multiple cores. Multiple cores are used by multiple connections. And in this case FB3 is the winner, as it spread jobs better then FB2.5.But in your case you should look more on that stored proc, as 15 minutes is long time. I have changed many sp into single query with cte, recursive cte or by using window or psql function in fb3Regards,Karol Bieniaszewski null
[firebird-support] how Firebird uses the cores of the microprossesor?
Hello! I use FB 2.5. I have a PC with 4 cores (I attach a link to an image of the task manager). https://www.five-oceans-images.com/articulos-web/1/Captura.JPG https://www.five-oceans-images.com/articulos-web/1/Captura.JPG When I run a query which takes about 15 minutes to run, I see that just one core is at 100% and the other 3 are almost without activity. Is this the expected behavior? I'm asking this because in my customer's PC, the same query takes more than one hour and I wonder if there's something I can do. I'm also trying to optimize my query (it's a stored procedure), but so far, I can't find anything... Do you thing that upgrading to FB 3 would improve the performance? It's a quite big database... and I never did a migration before. Do you think it will be a pain to migrate the database? I use Delphi XE2 and IBDAC. Don't know if I will have to change on the client side as well... Thanks a millon!!! Sergio
