On Thu, Apr 14, 2011 at 08:13:06AM -0600, Dave Hajoglou wrote: > To list, > I built a new LFS 6.8 and everything is kosher save for some > slowness. I built an x86_64 kernel (2.6.38.2) all on a Xen host > (5.6.100) on a Quad Proc Xeon. It boots with no issues until I try to > configure a package. As an example, if I run the ./configure for the > openssh package, it takes around 5 min just to configure. Making with > -j4 tends to go well but still not as fast as I think it could. It > shouldn't be a Xen issue as my LFS build system was the LFS live CD. > Configuring under the liveCD proceeded at a normal rate. I've tried a > few different kernel options but none seem to make any difference. > Any help would be appreciated. I wouldn't expect the kernel config to make a lot of difference. The whole system is 64-bit ? It rather sounds like you might have masses of memory on a 32-bit system, and all the time is taken up in bounce-buffers (to address more than 4GB).
'top' might help - while configure is running, to see what where the cycles are being spent - a lot of time in wait might imply a disk or filesystem problem. Or, perhaps there is a lot of background activity. Maybe it's a question of configuring xen differently, e.g. pinning a cpu core (I see that mentioned in the Arch wiki, but I've no idea how to do it). ĸen -- das eine Mal als Tragödie, das andere Mal als Farce -- http://linuxfromscratch.org/mailman/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/lfs/faq.html Unsubscribe: See the above information page
