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korilius
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PostPosted: Thu Nov 14, 2013 2:09 pm    Post subject: Gentoo benchmark vs other Distros Reply with quote

Didn't see anything right off in searching for this, so here's a question:

Has anyone did any benchmark comparison with their Gentoo builds vs other distros? I'm curious has to what / how much gains were made speedwise and stabilitywise. Curious to see some results! Once I get a dedicated machine, I'm going to attempt this as well.
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schorsch_76
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PostPosted: Thu Nov 14, 2013 2:28 pm    Post subject: Reply with quote

Benchmarks always depend on the task to complete. I did some time some test in an other forum wirth "-march=native" Here is the result


Linpack Benchmark on i7 (Sandy Bridge) with -O3
Code:

cc -O3 -o linpack linpack.c -lm

./linpack
Enter array size (q to quit) [200]: 
Memory required:  315K.


LINPACK benchmark, Double precision.
Machine precision:  15 digits.
Array size 200 X 200.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
    1024   0.74  75.68%   4.05%  20.27%  2383548.023
    2048   1.48  83.11%   5.41%  11.49%  2147012.723
    4096   2.95  86.10%   2.03%  11.86%  2163528.205
    8192   5.91  82.06%   2.37%  15.57%  2254578.490
   16384  11.79  83.12%   2.63%  14.25%  2225587.867


Linpack Benchmark on i7 (Sandy Bridge) with -O3 -march=native

Code:
cc -O3 -march=native -o linpack linpack.c -lm

./linpack
Enter array size (q to quit) [200]: 
Memory required:  315K.


LINPACK benchmark, Double precision.
Machine precision:  15 digits.
Array size 200 X 200.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
    1024   0.82  75.61%   3.66%  20.73%  2163528.205
    2048   1.16  75.00%   3.45%  21.55%  3090754.579
    4096   2.33  79.83%   1.72%  18.45%  2960617.544
    8192   4.65  75.91%   2.80%  21.29%  3073865.209
   16384   9.31  78.09%   2.04%  19.87%  3016178.731
   32768  18.63  77.13%   2.42%  20.45%  3036530.814


[1] http://elinux.org/RPi_Performance
[2] http://debianforum.de/forum/viewtopic.php?f=15&t=142626&hilit=+elinux&start=15
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PostPosted: Thu Dec 05, 2013 8:47 pm    Post subject: Re: Gentoo benchmark vs other Distros Reply with quote

korilius wrote:
Didn't see anything right off in searching for this, so here's a question:

Has anyone did any benchmark comparison with their Gentoo builds vs other distros? I'm curious has to what / how much gains were made speedwise and stabilitywise. Curious to see some results! Once I get a dedicated machine, I'm going to attempt this as well.

Some months ago I did a Xonotic benchmark between Ubuntu and Gentoo. Both 64 bit systems. No difference in FPS. I have just one notebook, I can't waste much time with benchmarks so it was the only I did. Anyway, programs in Gentoo are smoother and quicker to open.

But when it comes to stability... Gentoo overkills Ubuntu! No strange bugs after months and no mysterious problems, Gentoo simple work. I have some ~amd64 packages and no problems, the Ubuntu PPA's sometimes give me problems. Now I don't use Ubuntu in my notebook anymore, just Gentoo.

tip: use phoronix-test-suit
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PostPosted: Thu Dec 05, 2013 9:18 pm    Post subject: Reply with quote

I recall reading a couple of articles in Linux Magazine a few years ago, but they were not comparing apples with apples:

Gentoo Optimizations Benchmarked, October 28, 2009

Gentoo Optimizations Benchmarked – Part 2, March 1, 2010
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PostPosted: Thu Dec 05, 2013 9:49 pm    Post subject: Reply with quote

I'm always concerned at boot time too: I give a proud smile when a windows user says how fast my pc boots...
We could start a specific thread about benchmarks with results, tips and how we've learned from our mistakes.
I don´t remember where I saw a simple test of 5000 digits PI calculate, but I'll edit this post when I find it.

HardInfo does many tests and upload results in an "online chart of speed champions" LOL...
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PostPosted: Fri Dec 06, 2013 1:34 am    Post subject: Reply with quote

Fitzcarraldo wrote:
I recall reading a couple of articles in Linux Magazine a few years ago, but they were not comparing apples with apples:

Gentoo Optimizations Benchmarked, October 28, 2009

Gentoo Optimizations Benchmarked – Part 2, March 1, 2010

Fitzcarraldo excellent, really excellent articles you linked! Maybe some fearless guy try to update them :roll:
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PostPosted: Fri Dec 06, 2013 1:47 am    Post subject: Reply with quote

Quote:
I'm always concerned at boot time too: I give a proud smile when a windows user says how fast my pc boots...

I've always wondered how they measure Windows boot time. I have Windows at work, when it boots it takes rather long time after the GUI is loaded to get functional network, not sure what else is lagging behind. It takes a few seconds for my Gentoo to boot into CLI login (root on SSD) with all services and daemons ready to serve.
And Windows at work takes forever to shut down, what the heck is it doing? Gentoo shuts down in a jiffy.
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PostPosted: Fri Dec 06, 2013 2:08 pm    Post subject: Reply with quote

Jaglover wrote:
I've always wondered how they measure Windows boot time.


Some programs measures in seconds and says what is delaying boot. Micro$oft has fooling the windows users: they show login screen before all the services are loaded; so the user has a "fast" login, but the machine stays busy after the login, loading more services (a lot of them).
Shutdown time is annoying!

My gentoo boot is terrible long (it stucks at ethernet part) but is 1 sec faster than windows.
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PostPosted: Sat Dec 07, 2013 1:23 pm    Post subject: Reply with quote

Another even older test can be found here, using BIND + queryperf:
http://ftp.isc.org/isc/dns_perf/ISC-TN-2008-1.html#results
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ak47gen
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PostPosted: Tue Dec 17, 2013 9:12 pm    Post subject: Reply with quote

As a benchmark I don't think you get a lot more speed then other distros, you just get a lot more customization. For benchmarks on the Linux side I would start with Phoronix. On their other site openbenchmarking.org some people did comparisons already of gentoo VS other Distros. As for boot speed you can get a lot more with gentoo strictly because you build the OS from ground up allowing you to strip anything you don't need. I made a video 5 years ago with 11 second boot time. https://www.youtube.com/watch?v=ozA2ie10A6w
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PostPosted: Tue Dec 17, 2013 10:36 pm    Post subject: Reply with quote

No thread on benchmarking Gentoo would be complete without that link.
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PostPosted: Tue Dec 17, 2013 11:57 pm    Post subject: Reply with quote

Best page ever! :lol:

I never understood the obsession with boot times. I mean who sits at their keyboard "OMG OMG OMG FASTER DAMN IT PEOPLE ARE GOING TO DIE IF YOU DONT BOOT NOW! OMG DHCP! DIEEEE"

Uptime is the only time I care about :P
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PostPosted: Wed Dec 18, 2013 12:05 am    Post subject: Reply with quote

shazeal wrote:
I never understood the obsession with boot times. I mean who sits at their keyboard "OMG OMG OMG FASTER DAMN IT PEOPLE ARE GOING TO DIE IF YOU DONT BOOT NOW! OMG DHCP! DIEEEE"


LoL :lol:

Quote:
Uptime is the only time I care about :P


Indeed
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PostPosted: Wed Dec 18, 2013 12:07 am    Post subject: Reply with quote

My dedicated MythTV fronend machine under the TV is an appliance, so it needs fast turn-on.

So I don't shut it down, I suspend it. The power button on the remote triggers a suspend script, and the system is set for wake-on-USB.

If you're really concerned about fast boot times, (and if you're plugged into the AC) don't shutdown and boot, suspend and wake.
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PostPosted: Wed Dec 18, 2013 2:36 am    Post subject: Reply with quote

My favorite benchmark is how often I curse an operating systems for its rank stupidity.
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PostPosted: Wed Dec 18, 2013 7:39 am    Post subject: Reply with quote

My favourite one is how often I agree with Hypnos.
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PostPosted: Wed Dec 18, 2013 9:41 am    Post subject: Reply with quote

depontius wrote:

So I don't shut it down, I suspend it. The power button on the remote triggers a suspend script, and the system is set for wake-on-USB.
yeah, that's a good trick. I've also heard about computers starting from read-only hibernation image - in case you want to actually power down and still have fast boot.
For machines running for a week (or several months) without shutdown making boot 1 sec faster is ridiculous though :D
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PostPosted: Wed Dec 18, 2013 2:44 pm    Post subject: Reply with quote

aCOSwt wrote:
My favourite one is how often I agree with Hypnos.

Curmudgeons unite!

In case anyone is wondering what the heck I'm on about, clarity of function and ease of maintainability are almost always more important than outright speed or good looks. In high performance applications, they're still just as important if the application is important at all (perhaps games are not).

Judge Judy: "Beauty fades, dumb is forever!"
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PostPosted: Wed Dec 18, 2013 4:23 pm    Post subject: Reply with quote

Before we had internet I bought cd's with suse,redhat,mandrake etc.
I don't remember how I discovered Gentoo 10 years ago.
I never used another distro since.
I recently bought a new Epson printer because my 6 years old RX560 started to have problems.
Linux support is bad compared to what it once was.
I ended up d/ling a src rpm which made it possible to install.
It still doesn't work well with gutenprint,can't print photo's borderless.
So on a spare partition I installed openSuse and d/led and installed the rpm driver.
Same problem.

What I noticed though was how slow KDE is compared to Gentoo.
Gerard.
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PostPosted: Wed Dec 18, 2013 5:24 pm    Post subject: Reply with quote

Before we had broadband I bought cds from Cheapbytes, starting with RedHat 4.1, and kept buying them for several years. Sometimes I bought several revisions of a release, notably RedHat 5.0, in order to get slipstreamed fixes.

Then when RedHat 8 came out and it wasn't RedHat 8.0, I got this unsettled feeling in the pit of my stomach, and started distro-shopping. At first I was thinking in terms of servicability and searched in that mode. Then I remembered that "This is a hobby, it's supposed to be FUN!" and went looking for one of the geekiest distributions I could find.

I started with Gentoo right at the cusp between 1.2 and 1.4, and have been with it ever since. I've installed Ubuntu and Mint for my kids, so they could function independently of me, and I run RedHat Enterprise at work, but I've run straight Gentoo at home.

Until now.

This whole "forced march to systemd" thing has me thinking about Slackware. I have to install another server imminently, but I think I'm going to put Gentoo on it. There is some hurry to this, and there is less of my time involved with a Gentoo install, whereas Slackware would be a big learning experience.

And perhaps systemd won't be forced down our throats, and I can stick with Gentoo.

Or perhaps someone who understands "The Unix Way" will reimplement systemd, correctly.
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PostPosted: Wed Dec 18, 2013 6:40 pm    Post subject: Reply with quote

gerard82 wrote:
What I noticed though was how slow KDE is compared to Gentoo.
Gerard.


SuSE is one of the slowest distros I've seen ever. Only FreeBSD and Vista slower than SuSE.

shazeal wrote:

I never understood the obsession with boot times. I mean who sits at their keyboard "OMG OMG OMG FASTER DAMN IT PEOPLE ARE GOING TO DIE IF YOU DONT BOOT NOW! OMG DHCP! DIEEEE"


Boot time is an indicator of the health of your system.
When someone says that there is no need for quick booting, and uptime is the most important thing - it resembles a fat man who descended into the courtyard of flats in the morning, says that there is no need to climb back up to the evening. He just does not want to admit that his health is not fine, and it would be hard and unpleasant to climb up the stairs, so the idea is thrown: it does not matter how fast he can climb.
Regarding me, I reinstall the system if boot time exceeds 20 secs.
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PostPosted: Thu Dec 19, 2013 3:42 am    Post subject: Reply with quote

creaker wrote:
Boot time is an indicator of the health of your system. [...] Regarding me, I reinstall the system if boot time exceeds 20 secs.

:!: Please tell us you don't do this on Gentoo, when you can just use rc-update.
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PostPosted: Thu Dec 19, 2013 4:20 am    Post subject: Reply with quote

creaker wrote:
When someone says that there is no need for quick booting, and uptime is the most important thing
Regarding me, I reinstall the system if boot time exceeds 20 secs.


My system need 4+ minutes to boot (estimate time, i never really count ; mostly eaten when loading my card raid kernel, discover, check and assemble arrays), so yes my system uptime is important for me, more than my boot time.
I have never be in needs to reinstall my system, in fact my gentoo install experience is limited to 18-20 times, the hosts i have install gentoo on.

And your health indicator is strange : so a system that is in a reboot loop... is healthy if it take 5s between each attempt ?
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PostPosted: Thu Dec 19, 2013 5:42 am    Post subject: Reply with quote

Hypnos wrote:
creaker wrote:
Boot time is an indicator of the health of your system. [...] Regarding me, I reinstall the system if boot time exceeds 20 secs.

:!: Please tell us you don't do this on Gentoo, when you can just use rc-update.
[ironic]Another good way would be systemd in parallel mode.[/ironic]
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PostPosted: Thu Dec 19, 2013 6:20 am    Post subject: Reply with quote

rudregues wrote:
[ironic]Another good way would be systemd in parallel mode.[/ironic]

Yeah it's like the fat man running up many staircases at once!
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