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bradcarter n00b
Joined: 12 Nov 2002 Posts: 53
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Posted: Tue Nov 12, 2002 5:25 pm Post subject: preinstall questions |
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I am making a move possibly away from Mandrake and would like some advice
Which stage do you recomend? I am thinking of stage 2, how much benifit is gained from doing the bootstrapping on this machiene in otherwords starting at stage 1?
finally what should my expected downtime be on a 1.4 GHz T-Bird with 320MB ram? I kind of get the shakes when I can not be typing away
Thanks I look forward to giving gentoo a try |
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garo Bodhisattva
Joined: 15 Jul 2002 Posts: 860 Location: Edegem,BELGIUM
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Posted: Tue Nov 12, 2002 5:56 pm Post subject: |
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if you use stage1, you can optimize the software for your system, but if you start from stage2 or even 3 it's faster and you can still optimize your system if you update/re-install your software later,that way you have a good system in a small amount of time.
when i installed starting from 1 on 1.4gig P IV with 256 sd-ram, it took me +- 1 day to install a working system with X, no extra software |
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Luder99 n00b
Joined: 29 Sep 2002 Posts: 41
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Posted: Tue Nov 12, 2002 11:31 pm Post subject: |
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Can anyone confirm a faster system by running stage 1 vs the others?
I'm not too confident a system would run faster, although I can see where compile times would be better when starting from stage 1.
Anyone? Anyone? |
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masseya Bodhisattva
Joined: 17 Apr 2002 Posts: 2602 Location: Baltimore, MD
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Posted: Wed Nov 13, 2002 1:37 am Post subject: |
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There's a discussion of Compile Times here, so let's not duplicate that effort.
For what it's worth I think that if you are going to build a gentoo system you might as well bootstrap the thing. It's going to take some time to put a gentoo box together unless you've already compiled the programs you want to use. What's another 3 hours? Why not just make sure you have done everything you can to have a fast system? Now, I know there are always time constraints. I'm just saying that for me it's a good trade since I'm going to have to spend about a day on it anyway. Might as well take the time to bootstrap. _________________ if i never try anything, i never learn anything..
if i never take a risk, i stay where i am.. |
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Luder99 n00b
Joined: 29 Sep 2002 Posts: 41
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Posted: Wed Nov 13, 2002 2:05 am Post subject: |
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Understood... I'm just trying to get to the bottom of this question...
Will a stage 1 yield a faster machine, or just faster compile times.
My limited knowledge tells me just faster compile times. A stage 3 build should produce the same output as a stage 1 build for any given app, however stage 1 could compile the app faster.
I know this is way off topic, maybe it should be it's own thread...
Thanks for the info..
KARL |
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masseya Bodhisattva
Joined: 17 Apr 2002 Posts: 2602 Location: Baltimore, MD
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Posted: Wed Nov 13, 2002 2:14 am Post subject: |
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Luder99 wrote: | I know this is way off topic, maybe it should be it's own thread... |
You're fine. I would like to see some hard statistics on this as well. I just didn't want to see it get cluttered with posts about how long it took to compile KDE. That doesn't help all by itself. What would be ideal is for someone with an extra system (and a week or so of free time..) to install it both ways (bootstrapped and from stage 2) and time the progress. _________________ if i never try anything, i never learn anything..
if i never take a risk, i stay where i am.. |
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rac Bodhisattva
Joined: 30 May 2002 Posts: 6553 Location: Japanifornia
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Posted: Wed Nov 13, 2002 2:34 am Post subject: |
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Luder99 wrote: | Will a stage 1 yield a faster machine, or just faster compile times.
My limited knowledge tells me just faster compile times. |
I vote just the opposite - compile times will be the same, because GCC is very picky about the optimizations used to build itself, and throws all of your CFLAGS out the window. I suppose that an optimized glibc might make GCC go a teeny bit faster, but I'd be surprised if it were noticeable.
On the other hand,
Quote: | A stage 3 build should produce the same output as a stage 1 build for any given app |
True, but only if you recompile said app. For apps that you just use as compiled in the stage 3 tarball, they may run slower than if you had compiled them yourself. And if you're going to recompile everything that was in the stage 3 tarball yourself, you've effectively done a stage 1 install. _________________ For every higher wall, there is a taller ladder |
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Luder99 n00b
Joined: 29 Sep 2002 Posts: 41
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Posted: Wed Nov 13, 2002 2:54 am Post subject: |
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So, you're basically saying in addition to gcc and say gclib, we are also going to compile cfdisk, etc as part of a stage1 and not stage 3, therefore those might run faster.
I see... I know were talking a negligible amount, especially on a "standard" system.
The reason I am so curious is I wanted to tweak every last ounce of speed out of an old laptop (120Mhz Pentium) and couldn't build from stage 1. Kept on crapping out, so I opted for a stage 3. It's nice, but if you're telling me it could be faster, maybe I'll need to try harder to bootstrap.
Thanks...
KARL |
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rac Bodhisattva
Joined: 30 May 2002 Posts: 6553 Location: Japanifornia
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Posted: Wed Nov 13, 2002 3:50 am Post subject: |
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More importantly than performance, Luder99 wrote: | Kept on crapping out, so I opted for a stage 3. |
...every time I hear this, I think there's a hardware unreliability problem lurking in the background. The Gentoo bootstrap is an extremely demanding hardware test suite. _________________ For every higher wall, there is a taller ladder |
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Luder99 n00b
Joined: 29 Sep 2002 Posts: 41
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Posted: Wed Nov 13, 2002 2:15 pm Post subject: |
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I would probably agree with you... It's a COMPAQ LTE 5250. Pentium 120 which is when, 1996? 1994? Maybe older? I'm probably lucky it still turns on, but hey, it's free! |
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bradcarter n00b
Joined: 12 Nov 2002 Posts: 53
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Posted: Wed Nov 13, 2002 10:02 pm Post subject: |
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Thanks for the responces, I decided to start from stage one, as was said what is three hours I am on stage three now and things are going well, 3 hours to bootstrap and just shy of an hour for stage 2.
So in other words the major time is for X and KDE, I like fluxbox best but I always install kde first then fluxbox |
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