It would be great if we can minimize the footprint of zebra/daemons by
default. However, a daemon still needs a vty/command layer for user
communication, doesn't it? are you suggesting to change how is that done?
Regards,
Jafar
On 6/8/2015 5:18 AM, Paul Jakma wrote:
On Thu, 28 May 2015, Jafar Al-Gharaibeh wrote:
But you are doing this for every daemon for every VRF, things add up
really quick. In a small experiment that I'm running now Quagga
(zebra, ospfd, pimd) uses 9MB of RAM. if I start adding VRFs I'm
going to hit a wall really quick.
Just on this. This is a freshly started zebra on x86_64 from the
Fedora 0.99.22.4 FC21 package:
# pmap -x `pidof zebra` | awk 'NF >= 6 && $1 ~ /^[0-9a-f]/ && $5 ~
/^.w/ { switch ($6) { case /zebra/: f = "zebra"; break; case
/(snmp|krb|libcom)/: f = "netsnmp"; break; case /pcre/: f = "pcre";
break; case /nss/: f = "nss"; break; case "[": break; default: f =
"other"; };kb[f] += $2; rss[f] += $3; dirty[f] += $4; } END {
printf("%-28s %5s %5s %5s\n", "lib", "KiB used", "RSS", "Dirty"); for
(i in kb) { printf("%-30s %5d %5d %5d\n", i, kb[i], rss[i],
dirty[i]);D }}'
lib KiB used RSS Dirty
nss 20 12 12
other 564 300 300
pcre 4 4 4
zebra 1004 860 860
netsnmp 1484 284 284
I'm attributing snmp, krb5 and libcom to netsnmp. I'm attributing '[
anon ]' mappings to the previous library (might not be right). "other"
contains
some weird deps too (rpmio, e.g., maybe cause of SELinux libs). Full
list at the end of the email.
A good chunk of the zebra stuff, from scanning massif output, is
probably due to the vty/command layer. Much of that stuff really
should not be in the daemons, least if we want a more programmatic way
to manage daemons.
--paul
Full pmap tally:
# pmap -x `pidof zebra` | awk 'NF >= 6 && $1 ~ /^[0-9a-f]/ && $5 ~
/^.w/ { if ($6 != "[") f = $6; kb[f] += $2; rss[f] += $3; dirty[f] +=
$4; } END { printf("%-28s %5s %5s %5s\n", "lib", "KiB used", "RSS",
"Dirty"); for (i in kb) { printf("%-30s %5d %5d %5d\n", i, kb[i],
rss[i], dirty[i]);D }}'
lib KiB used RSS Dirty
libbz2.so.1.0.6 4 4 4
ld-2.20.so 8 8 8
libacl.so.1.1.0 4 4 4
libnssutil3.so 4 4 4
zebra 856 716 716
libnetsnmp.so.30.0.2 224 224 224
libnspr4.so 16 8 8
libsensors.so.4.3.2 4 4 4
libnss3.so 16 8 8
libcrypt-2.20.so 188 4 4
libssl.so.1.0.1k 28 28 28
libkeyutils.so.1.5 4 4 4
libselinux.so.1 12 4 4
libfreebl3.so 20 4 4
libpcre.so.1.2.3 4 4 4
libpopt.so.0.0.0 4 4 4
liblua-5.2.so 4 4 4
libcom_err.so.2.1 4 4 4
librpm.so.3.3.1 16 16 16
libwrap.so.0.7.6 8 4 4
libkrb5support.so.0.1 4 4 4
libattr.so.1.1.0 4 4 4
librpmio.so.3.3.1 16 8 8
libcrypto.so.1.0.1k 68 64 64
libk5crypto.so.3.1 8 4 4
libplc4.so 4 4 4
libelf-0.161.so 4 4 4
liblzma.so.5.0.99 4 4 4
libplds4.so 4 4 4
libnetsnmpmibs.so.30.0.2 1224 28 28
libm-2.20.so 4 4 4
libzebra.so.0.0.0 148 144 144
libresolv-2.20.so 12 4 4
libnsl-2.20.so 12 4 4
libutil-2.20.so 4 4 4
libz.so.1.2.8 4 4 4
libdl-2.20.so 4 4 4
libdb-5.3.so 12 12 12
libc-2.20.so 24 24 24
libcap.so.2.24 4 4 4
libkrb5.so.3.3 12 12 12
libpthread-2.20.so 20 8 8
libperl.so.5.18.4 28 28 28
libgssapi_krb5.so.2.2 8 8 8
libnetsnmpagent.so.30.0.2 8 4 4
librt-2.20.so 4 4 4
regards,
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