DHCP version

[Dave Taht]

On Thu, Mar 1, 2012 at 6:32 PM, Francis Dupont <fdupont at isc.org> wrote:
> Taken from the make log:
>
> gcc  -g3 -O0  -I../bind/include   -o dhcrelay dhcrelay.o ../common/libdhcp.a ../omapip/libomapi.a ../bind/lib/libdns.a ../bind/lib/libisc.a
>
> so with shared libraries we can save 30MB in the flash and > 1MB of memory.

I note that very little CPE ships with more than 16MB of flash, and
that the bulk of that is used up by things like the OS, busybox,
routing daemons, a web based configuration service, ntp, and things
like samba, sometimes even a printer daemon.  While compression is
used, at best that is a 2x1 ratio and at least some flash is required
for configuration information and upgrades.

Also the shared libisc and lisccfg as distributed in 9.9 are
of reasonable size.

84308 Feb 29 20:09 libisccfg.so.90.0.1
44668 Feb 29 20:09 libbind9.so.90.0.2
310252 Feb 29 20:09 libisc.so.90.1.0
482076 Feb 29 20:09 /usr/sbin/named

166805 Feb 29 19:46 /usr/sbin/dnsmasq

And dibbler-client is rather large (and depends also
on a rather large C++ lib that is only a subset of the full
stdc++lib.

858277 Feb 29 20:08 /usr/sbin/dibbler-client



> IMHO it is forth to spend some hours on this, Francisco will say when
> (I think if we can wait, i.e., we have no oversize issue, we should defer
> this to the next phase, i.e., next month or at the next opportunity...)
>
> Regards
>
> Francis Dupont <fdupont at isc.org>
>
> PS: ls -alg on my Fedora 16 64 bit:
> -rw-r--r--. 1 dupont dupont  8442142 Mar  1 18:19 ../bind/lib/libdns.a
> -rw-r--r--. 1 dupont dupont  1859796 Mar  1 18:19 ../bind/lib/libisc.a
> -rw-rw-r--. 1 dupont dupont 12939192 Mar  1 18:19 ../common/libdhcp.a
> -rw-rw-r--. 1 dupont dupont  9213808 Mar  1 18:19 ../omapip/libomapi.a

I do note that .a files contain lots of symbol info that is stripped
out during the linkage process.

This is the rough layout of processes running on one box that I have
with 64MB ram. There is 22MB of ram free, named is idle at the moment
but is hard limited to 22MB or so (leaving ~10 to play in)

  PID USER       VSZ STAT COMMAND
    1 root      1696 S    init
    2 root         0 SW   [kthreadd]
    3 root         0 SW   [ksoftirqd/0]
    5 root         0 SW   [kworker/u:0]
    6 root         0 SW<  [khelper]
    7 root         0 SW   [kworker/u:1]
   73 root         0 SW   [sync_supers]
   75 root         0 SW   [bdi-default]
   77 root         0 SW<  [kblockd]
  109 root         0 SW   [kswapd0]
  157 root         0 SW   [fsnotify_mark]
  170 root         0 SW<  [ath79-spi]
  182 root         0 SW   [mtdblock0]
  187 root         0 SW   [mtdblock1]
  192 root         0 SW   [mtdblock2]
  197 root         0 SW   [mtdblock3]
  202 root         0 SW   [mtdblock4]
  207 root         0 SW   [mtdblock5]
  212 root         0 SW   [mtdblock6]
  255 root         0 SW   [kworker/0:1]
  466 root         0 SWN  [jffs2_gcd_mtd4]
  493 root         0 SW   [khubd]
  520 root      1732 S    {rcS} /bin/sh /etc/init.d/rcS S boot
  521 root      1696 S    init
  523 root      1688 S    logger -s -p 6 -t sysinit
  574 root         0 SW<  [crypto]
  580 root         0 SW<  [cfg80211]
  764 root      1700 S    /sbin/syslogd -C16
  766 root      1680 S    /sbin/klogd
  774 root       820 S    /sbin/hotplug2 --override --persistent --set-worker
 1640 root         0 SW   [kworker/0:2]
 1671 root      3272 S    hostapd -P /var/run/wifi-phy0.pid -B /var/run/hostap
 2208 root      3280 S    hostapd -P /var/run/wifi-phy1.pid -B /var/run/hostap
 3680 www-data  3480 S    lighttpd -f /etc/lighttpd/cerowrt.conf
 3690 nobody    4136 S <  /usr/sbin/gpsd -n -P /var/run/gpsd.pid -S 2947 -G /d
 3697 root      3472 S    /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
 3699 root      3844 S    /usr/sbin/mrd6 -f /etc/mrd6.conf -D
 3704 root      1412 S    /usr/sbin/pimd
 3906 root       868 S    /usr/sbin/radvd -C /var/etc/radvd.conf -m stderr_sys
 3913 root      2760 S    /usr/sbin/snmpd -Lf /dev/null -p /var/run/snmpd.pid
 3915 root      1256 S    /usr/sbin/xinetd -pidfile /var/run/xinetd.pid
 3922 root      1752 S    /usr/sbin/dbus-daemon --system
 3976 nobody     960 S    /usr/sbin/dnsmasq -K -D -y -Z -b -E -6 /etc/dnsmasq_
 3977 root       960 S    /usr/sbin/dnsmasq -K -D -y -Z -b -E -6 /etc/dnsmasq_
 3989 root      3532 S    /usr/sbin/smbd -D
 3991 root      3676 S    /usr/sbin/nmbd -D
 3998 nobody    2480 S    avahi-daemon: running [cerowrt.local]
 4027 root      1204 S    /usr/sbin/babeld -D -I /var/run/babeld.pid -l -z 3 -
 4029 bind     11920 S    named -c /etc/bind/conf/named.conf -u bind -t /etc/c
 4057 root      1132 S    /usr/sbin/ahcpd -D -c /tmp/ahcpd.conf -i /var/lib/ah
 4074 root       812 S    /sbin/rngd -r /dev/urandom -W 4000 -t 30
 4081 root      1264 S    /usr/sbin/polipo -c /var/etc/polipo.conf
 4088 root      1240 S    dropbear -i
 4089 root      1700 S    -ash
 4126 ntp       2840 S    /sbin/ntpd -g -u ntp:ntp -p /var/run/ntpd.pid
 4135 root      1240 S    dropbear -i
 4136 root      1700 S    -ash
 4169 root      1688 R    ps

-- 
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://www.bufferbloat.net