On 30-08-2011 18:27, Fulvio Senore wrote: > > Now I have installed Ubuntu 10.04 LTS 64 bit in my laptop, formatting > the disk partitions with the ext4 file system. > When I use the same program to open my catalog, it takes about 23 > seconds. That is in incredibly long time and I really cannot imagine how > can it be so slow. For the whole 23 seconds the hard disk works > continuously and cpu usage is very low. If I close the program and I > open the catalog again, it takes the same 23 seconds again. > When opening a catalog the program executes only SELECT queries, so it > is only reading the database. > It looks like Firefox reads are not cached, but this is very strange. > Disk reads are usually cached: if I open a large program for the first > time the hard disk works, if I open it again the disk does not work any > more, so those reads are cached. > I cannot imagine why Firebird disk reads are not cached, but this could > be an explanation. >
Are you sure you're not executing each query in a different transaction? Please also try to set the database to async mode (forced write off) and see if it changes. Adriano ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
