First distro with a smp kernel?

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Stripe · #1 Post by **Stripe** » Sat 27 Nov 2010, 14:38

Hi all

Just a quick question to see what was the first puppy with a smp kernel, the earliest I have found is 431 does anyone know of anything earlier ?

Cheers
Stripe

rjbrewer · #2 Post by **rjbrewer** » Sat 27 Nov 2010, 14:49

There was a 4.1.2 ChoicePup version.

Stripe · #3 Post by **Stripe** » Sat 27 Nov 2010, 14:58

Thanks RJBrewer I will have a look for it

Cheers
Stripe

#4 Post by **Flash** » Sat 27 Nov 2010, 15:24

How can I tell if Puppy is making use of my dual-core AMD CPU? Is there an operational test I can run that will tell me whether both cores are being used as intended?

Stripe · #5 Post by **Stripe** » Sat 27 Nov 2010, 16:42

Hi Flash

As far as I know, I just use Htop and hardinfo (to see the number of chips and if they are being used), no doubt somebody will know if there are any command line options, but I am sorry I dont know that

Stripe

eastler_dart · #6 Post by **eastler_dart** » Sat 27 Nov 2010, 16:55

Hi all, hi stripe,

in my tests with puppy4.12 (Kernel 2.6.25.16)
I also had to check the kernel-sources.
There I had found some hints for you.

The kernel 2.6.25.16 for default boots in
single-cpu-mode.
But with the boot-parameter
maxcpus= [SMP]
( [SMP] is the maximum number of processors
that an SMP kernel should make use of)
the kernel tries to use more cpu-cores.
For example, with the boot-parameter (grub? in menu.lst?)
puppy ..... maxcpus=2
you can try it on a dual-core-cpu.

In the sources-doku of my old kernel 2.6.25.16 is also a hint,
that because on some platforms, the use of more than
one cpu could result in a hanging system, the default
is to boot in single-mode.

Search the internet for 'maxcpus' and 'nosmp' for more help.

But give it a try (I had never tested it

)

hope it helps

Eastler

Stripe · #7 Post by **Stripe** » Sat 27 Nov 2010, 16:59

Thanks eastler

4.2.1. also uses the 2.6.25.16 kernel so I might give that a try as well

Cheers
Stripe

#8 Post by **Flash** » Sun 28 Nov 2010, 02:15

Stripe wrote:As far as I know, I just use Htop and hardinfo (to see the number of chips and if they are being used)

I hadn't even tried Htop yet! Thanks for pointing it out. It's impressive, but at first glance I don't see where it's telling me how many chips or cores or whatever are being used.

trapster · #9 Post by **trapster** » Sun 28 Nov 2010, 12:44

menu - system - HardInfo should list something.
In Summary or Processor:

Devices

Processors
Intel(R) Atom(TM) CPU N280 @ 1.66GHz 1000.00MHz
Intel(R) Atom(TM) CPU N280 @ 1.66GHz 1667.00MHz

rjbrewer · #10 Post by **rjbrewer** » Sun 28 Nov 2010, 14:09

Flash wrote:
Stripe wrote:As far as I know, I just use Htop and hardinfo (to see the number of chips and if they are being used)
I hadn't even tried Htop yet! Thanks for pointing it out. It's impressive, but at first glance I don't see where it's telling me how many chips or cores or whatever are being used.

If it has more than one processor, Htop will show more than 1 cpu in
first line. (exceptions):

http://murga-linux.com/puppy/viewtopic.php?t=57241

#11 Post by **Flash** » Mon 29 Nov 2010, 03:04

Here's what Menu -> System -> Htop shows for my computer. I presume the lines numbered 1 and 2 in the upper left refer to the cores in the CPU.

After reading this post I tried to find syslinux.cfg but it's not anywhere in my computer. Is that because I'm running Puppy from a multisession DVD?

fluxit · #12 Post by **fluxit** » Wed 01 Dec 2010, 03:34

Plain old "top" will also show you your cpus/cores. Just press 1 while it's running.

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First distro with a smp kernel?

First distro with a smp kernel?