On Wed, Aug 26, 2015 at 03:48:12PM +0000, James wrote: > Alec Ten Harmsel <alec <at> alectenharmsel.com> writes: > > 64-bit hardware with the no-multilib profile[1]. I have no "-bin" packages > > on my system, nor do I run any pre-built 3rd party applications, so I > > waste no time compiling worthless 32-bit libraries. Therefore, I need > > grub 2. > > Ok this is interesting. Is this only an AMD64 thing? On Arm64 you'd > most likely want to run 32 bit binaries.
I don't know anything about arm64, but if it is 64-bit, why would you need 32-bit binaries? > This is profile [11} right? > > default/linux/amd64/13.0/no-multilib Yes. > I'm OK with this, but what is the benefit of such profile selection:: > curiously I have no experience with the profile selection, despite > running quite a few amd64 system. What would the benefits be > running this profile on older amd64 hardware ? The main benefit is reduced compile times for some packages since I only compile the 64-bit versions, less stuff on the filesystem, etc. If you do not run any applications that use a 32-bit version of a library, that library is taking up disk space and compile time, but is never used. I also am a bit of a purist, and just run no-multilib because it is emotionally satisfying. > > > AMD64 Team; <amd64 <at> gentoo.org> > > > grub-1 is not available on no-multilib profiles; > > I had not seen this, but so I guess this is well documented......? > Does that profile selection prevent one from selecting grub-1 during > and installation? Yes, although just now was the first time I ever tried installing grub-1. > OFF TOPIC > On another note: have you seen spark-1.5 ? Cleaner build? > http://apache-spark-developers-list.1001551.n3.nabble.com/Fwd-ANNOUNCE-Spark-1-5-0-preview-package-td13683.html > .............................................................. I haven't looked at the new features of 1.5 specifically, but I know that the build process is basically the same. The API is nice, but it is definitely possible to write a faster job using Hadoop's API since it is lower-level and can be optimized more, so I spend more time writing jobs using Hadoop's API. Alec
