On Fri, May 01, 2015 at 05:26:25PM -0500, Douglas R. Reno wrote: > Hello all, > > Before I can begin tagging for GCC 5 (and doing the Xorg Updates > ticket), I have to ask a question. I initially built this system with > the --with-pic option in Binutils 2.25 in Chapter 6, and therefore I > have -fPIC and -DPIC enabled by default by the compiler. I plan on > rebuilding Binutils and GCC without PIC before I begin tagging and > updating packages on this system. Are there any issues that may arise > from this? > I'm not aware of any, but everything can be an adventure. I guess you'll be updating in place : if it goes bad, backups are your friend.
> On a side note, it appears that my SBU value has increased by an > additional 20 seconds with GCC 5. Is that odd? (It could be the fact > that I am watching a movie on another monitor and I have a text > editor and Seamonkey open, but I don't think that it should have that > much of an impact...). I will correct this value before I run through > the Xorg ticket. > > Thank you, and input is definitely welcome! > Building with newer versions, I expect the SBU to take longer. I already noted that my kernel compiles seem to take a little longer with gcc-5, but I've been pleasantly surprised by the overall speed of my desktop scripts (using -j4 -O for make, but not for the tests). If I'm going to use a system to measure packages for BLFS, I always repeat the SBU calculation after it has booted. In my latest system, I'm not intending to use it to measure anything - I'll still use 7.7 for that - but I reran the calculation anyway : it went from 158.268s (using 7.7 and a 4.1-rc kernel to 167.646s using itself and 4.0.1). Don't be fooled by the 3 decimal places, on this machine (which might be doing other things during the initial build) I would regard a difference of less than 10 seconds as probably noise. 'top' is usually helpful in determining if the system is under pressure (typically, swapping) - the current version is quite nice once you've fixed up what it shows to be more like the older versions. ĸen -- Nanny Ogg usually went to bed early. After all, she was an old lady. Sometimes she went to bed as early as 6 a.m. -- http://lists.linuxfromscratch.org/listinfo/blfs-dev FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
