> Date: Sat, 13 Jan 2007 18:55:36 -0800 > From: Garrett Cooper <youshi10_at_u.washington.edu> > Sender: owner-freebsd-current_at_freebsd.org > > Before I do this, I have a few questions; I know that the bulk > majority of the documentation for my questions may exist online or in > /usr/src/UPDATING, but I was just curious of the major changes that I > can expect between 6 and 7: > > 1. What scheduler is currently the most complete for SMP/multi-core > capable processors? 4BSD is stable and works well. Jeff R just committed a major overhaul of ULE and it MAY now perform a bit better and has been reported to be stable, now. But it is still experimental d a work in p progress. > 2. Do I need to add some sort of compatibility layer for 6 going to 7 > (similar to compat_5)? There is COMPAT_FREEBSD6, but there is no compat_6x port at this time. Due to the instability of ABIs in current, be prepared to do a lot of port building. > 3. What are (briefly) some of the major changes for the ABI/API going > from 6 to 7? Someone mentioned some changes to the ABI when I emailed > the hackers_at_ list previously, so I was just curious. Lots of ABI changes. Read /usr/src/UPDATING for the details. ABI changes should all be mentioned there. > 4. How is SATA support for SIS motherboards under 7? Decent? No idea. I have neither a SIS mobo or a SATA system. > 5. Is 7 running gcc-4.x? Not yet, but it should be coming fairly soon. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman_at_es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
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