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Old 02-21-2013, 03:49 PM   #151
ruario
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Quote:
Originally Posted by audriusk View Post
32-bit Slackware is still useful on a small VPS (up to 2GB RAM), I do have one from Linode (512MB RAM).
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Originally Posted by audriusk View Post
Also I'll repeat myself, that 32-bit Slackware is a smart choice for a small VPS with a limited amount of RAM, if one wants to squeeze more out of it (64-bit applications consume more RAM).
Yep, exactly the same situation for me. I'm also with Linode by the way.
 
Old 02-21-2013, 03:51 PM   #152
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Quote:
Originally Posted by H_TeXMeX_H View Post
I am against moving to i686. Why would you do it ? People still want to run old hardware with Slackware and that's the whole point of the 32-bit part. If you want performance you choose 64-bit.
Not true for the VPS scenario. In fact it isn't true for those with hardware that can't do 64-Bit either but are using i686.
 
Old 02-22-2013, 04:28 AM   #153
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Quote:
Originally Posted by ruario View Post
Not true for the VPS scenario. In fact it isn't true for those with hardware that can't do 64-Bit either but are using i686.
Why isn't it true ?
 
Old 02-22-2013, 05:42 AM   #154
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With regards to my VPS, as mentioned previously my linode package is the cheapest one they offer and hence has 512Mb of RAM allocated to it. audriusk has the same plan and hence the same situation, as do others I am sure. Many of the entry level VPS packages provide very little RAM. When using one of these it is better to run 32-Bit is it not?

Regarding those that have actual i686 chips (not x86_64), they would get better performance (in some apps) if Slackware was complied for i686, without being held back for i486. I know that Slackware uses -O2 -march=i486 -mtune=i686 but if I understand correctly full optimisation for i686 would likely be better for those users.
 
Old 02-22-2013, 06:34 AM   #155
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Quote:
Originally Posted by ruario View Post
Regarding those that have actual i686 chips (not x86_64), they would get better performance (in some apps) if Slackware was complied for i686, without being held back for i486. I know that Slackware uses -O2 -march=i486 -mtune=i686 but if I understand correctly full optimisation for i686 would likely be better for those users.
As you can see here, the performance increase when compiling for i686 instead of i486 is in most benchmarks negligible, as long as you don't compile for your specific CPU (including advanced features like MMX, SSE, ...).
For those people it would be nice if Slackware could be compiled from scratch with -march=native, but since that is (currently?) not possible people that really need the performance on their 32 bit machines should use Gentoo or other source based distros.

Although I too would be interested, just for fun, in a Slackware that can be compiled from scratch .
 
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Old 02-22-2013, 07:13 AM   #156
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Sure it isn't massive but there is some performance gain. From the summary of the article you linked to:

Code:
The results of the tests show that the biggest jump in performance is from i486 to i686 and that there is not much extra to gain from then on.
That said, I am not actually suggesting Slackware dropping i486 and moving to i686. I was just playing devil's advocate.

However on the VPS side I do think 32-Bit continues to be reasonable choice if you only have a limited amount of RAM available for the package you are renting. So the reasons for keeping 32-Bit are not just old hardware or because of certain 32-Bit only packages (where the user does not want to consider multilib).
 
Old 02-22-2013, 08:23 AM   #157
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Quote:
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However on the VPS side I do think 32-Bit continues to be reasonable choice if you only have a limited amount of RAM available for the package you are renting.
Not only on VPS. I use an Atom 330 with 1GB of RAM and it runs 32 bit just fine, no need for 64 bit here and since the bottleneck here is the network connection I wouldn't get better performance with 64 bit.
 
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Old 02-22-2013, 09:16 AM   #158
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I recommend doing benchmarks before assuming that 64-bit will not be better. You will have to switch to 64-bit one day, and it's not too far off.
 
Old 02-22-2013, 10:34 AM   #159
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Well 64-bit applications will certainly use more memory.

http://www.akamaras.com/linux/32bit-...r-low-end-vps/
http://www.webhostingtalk.com/showthread.php?t=1202447
http://superuser.com/questions/25682...-512mb-ram-vps
 
Old 02-22-2013, 10:42 AM   #160
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Quote:
Originally Posted by H_TeXMeX_H View Post
You will have to switch to 64-bit one day, and it's not too far off.
It remains pretty far of for as long as the low end VPS accounts offer only 256 or 512Mb of RAM.
 
Old 02-22-2013, 10:46 AM   #161
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Yes, from what I see it uses about 20-30% more RAM, but NOT twice as much like rumors suggest.

Depending on the application, performance benefits can be many times faster, especially for encryption and multimedia encoding.
http://www.phoronix.com/scan.php?pag...204_3264&num=1

Atom processors benefit greatly from both compiling for the Atom processor and 64-bit if it supports it.
 
Old 02-22-2013, 02:14 PM   #162
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Still using Slack 14 32 bit for a file server and thinking of adding a BBS.
 
Old 02-22-2013, 06:17 PM   #163
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The main reason for me to use 32-bit is software support. The occasional use I make of Skype (someone mentioned it in this thread) comes to mind.

I could try multilib (one of those things I've never read about), but not just now. Maybe in the next Slackware version.

compassnet.
 
Old 02-25-2013, 01:46 PM   #164
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Quote:
For those people it would be nice if Slackware could be compiled from scratch with -march=native, but since that is (currently?)
Although I too would be interested, just for fun, in a Slackware that can be compiled from scratch .

I tried once , needs too much work to add -march=native
 
Old 02-25-2013, 01:57 PM   #165
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I do not care as 64-bits support >4GB better
 
  


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