Date: Wed, 10 Apr 2013 09:53:41 +0300 From: Daniel Braniss <danny@cs.huji.ac.il> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-hackers@freebsd.org, Amit Rawat <aamitr4@gmail.com> Subject: Re: GSOC 2013 project " Kernel Size Reduction for Embedded System " Message-ID: <E1UPoub-000PiJ-DI@kabab.cs.huji.ac.il> In-Reply-To: <alpine.BSF.2.00.1304091935490.13342@wojtek.tensor.gdynia.pl> References: <CAOhv3dpTM9J9oiLpdw8xOAToXT_tQ3VW4Mv1F%2B8n7xhG%2BJK93w@mail.gmail.com> <alpine.BSF.2.00.1304091935490.13342@wojtek.tensor.gdynia.pl>
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> > happy that FreeBSD is among the selected organization.
> >
> > I am a third year student interested to work in the field of embedded
> > system. I applied last year and the title of my project was " Kernel Size
> why only in embedded system. smaller programs are always good :)
>
> And yes FreeBSD kernel is huge. doesn't really matter with 1GB or more
> RAM but yes - it is huge even relative to linux.
>
hum,
Copyright (c) 1992-2012 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.1-PRERELEASE #2: Wed Dec 12 13:15:53 IST 2012
danny@rnd:/home/obj/rnd/alix/i386.i386/r+d/stable/9/sys/ALIX i386
CPU: Geode(TM) Integrated Processor by AMD PCS (498.06-MHz 586-class CPU)
Origin = "AuthenticAMD" Id = 0x5a2 Family = 0x5 Model = 0xa Stepping = 2
Features=0x88a93d<FPU,DE,PSE,TSC,MSR,CX8,SEP,PGE,CMOV,CLFLUSH,MMX>
AMD Features=0xc0400000<MMX+,3DNow!+,3DNow!>
real memory = 268435456 (256 MB)
avail memory = 253120512 (241 MB)
pnpbios: Bad PnP BIOS data checksum
K6-family MTRR support enabled (2 registers)
cryptosoft0: <software crypto> on motherboard
pcib0 pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
Geode LX: PC Engines ALIX.3 v0.99h tinyBIOS V1.4a (C)1997-2007
and top:
last pid: 31829; load averages: 0.00, 0.00, 0.00 up 60+17:07:18 09:52:20
24 processes: 1 running, 23 sleeping
CPU: 0.0% user, 0.0% nice, 0.4% system, 0.0% interrupt, 99.6% idle
Mem: 17M Active, 56M Inact, 33M Wired, 34M Buf, 136M Free
Swap: 512M Total, 512M Free
PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
31829 danny 1 21 0 9784K 2004K RUN 0:00 1.86% top
4288 danny 1 21 0 13160K 5128K select 0:01 1.37% xterm
21604 root 1 20 0 21940K 12796K select 16:51 0.00% python
687 root 1 20 0 11160K 2660K select 5:55 0.00% ntpd
3967 danny 1 20 0 13024K 4364K select 1:55 0.00% elockd
537 root 1 20 0 9592K 9612K select 1:54 0.00% amd-6.2a3
...
this host can run x11 apps!
so 'Huge' is a relative matter, my first PDP11/45 has 64K :-)
danny
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