Am I wasting my time with from source compiles?

Greetings all,
I have a question, and it may be silly. I'm a gamer but not a hardcore "zOMG I needZ moRe powAh tHan I actUAlly n33d!" type.
I've used Gentoo from 2002 - 2006.
I started using Arch Linux in fall of 2006 and have used it since.
Couple days ago I "upgraded" from my AMD 64 x2 - 2Ghz system, to a Intel Core 2 Duo E8400 3Ghz system with 4 GB Ram and Geforce 560 Ti. I installed Arch Linux and then I installed Gentoo just for nostalgic and curiosities sake, I had a working Gentoo install within a few hours. I'm not noticing that much of a difference in performance between the two, X seems to load a bit faster on Gentoo but other apps in general load the same, have same performance quality and games have about the same exact framerates. Reguardless if I use "default" USE flags or "all dependencies" USE flags (I tend to be an all dependencies type of guy -- but I did both types for my testings) im not seeing that much, if any at all, performance differences.
I should also note that: Phoronix Test Suite actually provided better performance numbers in Arch Linux than in Gentoo Linux.
Now my "silly" question and I want true answers and not just speculative answers.
Am I wasting my time with Gentoo and from source compiles in general? If I generally tend to do all dep compiles, and im not seeing any performance difference reguardless if I do or don't do the all deps USE flags approach, simular gaming framerates, etc... am I really wasting my time with all the compiles and compile time? Thanks in advance.
Last edited by Chaniyth (2011-11-21 17:08:26)

Chaniyth wrote:.....I installed Arch Linux and then I installed Gentoo just for nostalgic and curiosities sake, I had a working Gentoo install within a few hours. I'm not noticing that much of a difference in performance between the two.....I should also note that: Phoronix Test Suite actually provided better performance numbers in Arch Linux than in Gentoo Linux. ..... Am I wasting my time with .. source compiles..?
IME yes, if your goal is overall performance you ARE wasting your time. I have the same results in benchmarking stock Archlinux vs. the same system recompiled with CFLAGS="-march=native etc." on Sandy Bridge. The recompiled system ran slightly slower on some tests. Quite a bit faster on bzip2 compression. Better x264 performance. Much lower latencies, measured using the interbench package from AUR. But the lower latency depends primarily on the kernel.  I use linux-lqx with arch=native; it is better than linux-ck or linux-pf in my tests.
I compile everything on my Archlinux system, using xmonad/lxpanel/rox as desktop or, when I'm in an alternate mood, KDE/rox. I don't compile from source for speed (except for math packages like sage-mathematics which can sometimes take advantage of the extra registers and SIMD instructions). I compile from source so that I have a complete system on hand. I once lived off-grid (in a cabin in the Ozark National Forest) and got in the habit of keeping my system ready for self-reliance. I enjoy having source code available for perusal and I modify a few of my packages. I use my own build script that uses meld to help me quickly bring forward my modifications into updated PKGBUILDs from the Arch repository (hey, there's no USE flags but I find that just modifying the PKGBUILD is actually cleaner, less baroque than the circular mess that can happen in Gentoo.)
One word of caution on your Phoronix benchmarks. Phoronix Test Suite was invented for comparing hardware. It uses its own binaries for many of the tests. When looking for the effect of software changes on the same hardware you should use the changed software (obviously). To do this with PTS you need to go into the ~/.phoronix-test-suite/installed-tests/pts/<test>/ folder and move aside the folder containing the phoronix version of the binary being tested and link to your /usr directory. For example, in the sqlite test folder I move aside "sqlite_" and "ln -s /usr sqlite_"  You can figure how to get each test to run local software by looking at the script in the test folder. If you don't do this, IMO you're getting misleading results from the PTS.

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    Solved!
    Go to Solution.

    gv wrote:
    1. To contact Linksys, call support.
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    Thank you for the reference.  For the sake of others who may read this thread, the current draft of multicast DNS is at http://www.ietf.org/id/draft-cheshire-dnsext-multicastdns-14.txt. 
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  • Keeping the time code from the source material

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  • Building eveything from source with ABS

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    Arthanis wrote:Sorry, it´s because i didn´t know how to move the post, I saw that if fit in another part of the forum
    Don't worry too much.  I suppose I was being mean given you are new here. It is just that help tends to be better when clustered in one place. 
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