> On 5 Apr 2005, at 20:53, Jeffrey Buell wrote: > > > I installed FC4 test1 and xen0 straight from Fedora and ran > some simple > > kernel microbenchmarks (loops over getpid, fork/wait, signal, etc.) > > and the > > results are pretty ugly compared to a 2.6.1 install. FC4 > ranges from > > 1.5X to > > 20X slower, while xen0 is about 2X to 6X slower. Is this > expected? I'm > > looking for configuration differences now, but I'm wondering if > > anybody can > > comment on how FC4 and xen0 were built. debug? asserts? One > difference > > between FC4 and xen0 is that FC4 was configured with > HIGHMEM and xen0 > > wasn't. > > Did you moved /lib/tls to /lib/tls.disabled? Yes. Also, xen0 is configured with SMP and FC4 wasn't. My 2.6.1 has neither SMP or HIGHMEM, but these things shouldn't have that much effect, or could they? Jeff
