Mohamed Zayed <zaye...@...> writes: > > Hi, > ... > The problem is, when I do this on : > Linux 2.6.9-34.ELsmp #1 SMP Sun Mar 19 13:54:02 CST 2006 i686 i686 i386 > GNU/Linux > > it takes less than 10 minutes > > However when, I do it on : > Linux 2.6.18-53.el5 #1 SMP Mon Nov 12 02:14:55 EST 2007 x86_64 x86_64 x86_64 > GNU/Linux > > it takes about 2 hours ?!!!! > > which is abnormal !!! > > I observed that the difference between these two cases is that the CPU is > well used (about 80 % ) in the first configuration. > But in the second configuration, the CPU usage is very slow (about 5%) !!!! > > By the way, the second configuration uses a newer material than the first > one > > do you have any ideas ?! > > thank you,
I note the difference in OS - 32 bit vs. 64 bit. Does the CPU in 64-bit mode have to do 32-bit emulation and alignment fixups of 32-bit software? I remember it had to do this for Itanium running Win64, and it was 30% of the speed. MikeW _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
