Date: Mon, 02 Nov 1998 10:25:52 -0800 From: John Polstra <jdp@polstra.com> To: akm@zeus.theinternet.com.au Cc: current@FreeBSD.ORG Subject: Re: Memory Usage under -current Message-ID: <199811021825.KAA07897@austin.polstra.com> In-Reply-To: <199811021418.AAA25420@zeus.theinternet.com.au> References: <199811021418.AAA25420@zeus.theinternet.com.au>
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In article <199811021418.AAA25420@zeus.theinternet.com.au>,
Andrew Kenneth Milton <akm@zeus.theinternet.com.au> wrote:
> I'm just comparing the sizes of processes under an ELF -current
> and a 2.2.5 system, and my recollections of what my machine used to look
> like.
>
> It seems that a lot more memory is being consumed by the ELF system..
>
> I expected there to be more used by the ELF system, but, not quite
> that much...
>
> e.g.
>
> 2.2.5 - Release.
>
> PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
> 294 root 3 0 180K 88K ttyin 0:00 0.00% 0.00% getty
> 295 root 3 0 180K 88K ttyin 0:00 0.00% 0.00% getty
> 296 root 3 0 180K 88K ttyin 0:00 0.00% 0.00% getty
> 18784 akm 18 0 572K 200K pause 0:00 0.00% 0.00% zsh
>
>
> 3.0 - Current.
>
> PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
> 224 root 3 0 1004K 340K ttyin 0:00 0.00% 0.00% getty
> 223 root 3 0 1004K 340K ttyin 0:00 0.00% 0.00% getty
> 243 akm 2 0 14084K 10772K select 5:45 7.29% 7.29% XF86_S3V
> 259 akm 18 0 1228K 592K pause 0:00 0.00% 0.00% zsh
>
> Even with more used, I would expect the resident portion to be pretty
> close to the 2.2.5 a.out.
I submit that some of these numbers are bogus -- probably the ones
from 2.2.5. To do a valid comparison, you have to compare a.out and
ELF on the same system. I built an a.out getty and installed it as
"agetty". (The ELF version is "getty".) Here's what "top" showed:
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
1482 root 3 0 804K 556K ttyin 0:00 0.00% 0.00% agetty
230 root 3 0 824K 440K ttyin 0:00 0.00% 0.00% getty
232 root 3 0 824K 440K ttyin 0:00 0.00% 0.00% getty
John
--
John Polstra jdp@polstra.com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Nobody ever went broke underestimating the taste of the American public."
-- H. L. Mencken
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