[Samba] Slow and unpredictable Samba performance?
Dennis Clarke
dclarke at blastwave.org
Tue Aug 26 19:35:31 GMT 2008
> Jakov Sosic wrote:
>> And I'm really keen to solve this one. I just can't get it - how can one
>> Samba
>> have issues with transfer rates, and another one not, with the same
>> exact
>> configuration?
>>
>>
>
> I have noticed that Sun's samba build has some different/wrong default
> settings that a 'standard' samba built on solaris. You might try
> comparing the outputs of 'testparm -sv' from the two different sambas.
> Perhaps some rogue default setting is affecting your performance.
>
This is what I have with Samba 3.2.2 on OpenSolaris 2008.11 :
Sun Microsystems Inc. SunOS 5.11 snv_95 January 2008
root at aequitas:~# /opt/csw/bin/testparm -sv
Load smb config files from /etc/opt/csw/samba/smb.conf
Processing section "[printers]"
Processing section "[os200805]"
Processing section "[tmp]"
Loaded services file OK.
Server role: ROLE_STANDALONE
[global]
dos charset = CP850
unix charset = UTF-8
display charset = LOCALE
workgroup = CSWSAMBA
netbios name = AEQUITAS
netbios aliases =
netbios scope =
server string = Samba 3.2.2
interfaces = rge0, lo0
bind interfaces only = No
config backend = file
security = USER
auth methods =
encrypt passwords = Yes
update encrypted = No
client schannel = Auto
server schannel = Auto
allow trusted domains = Yes
map to guest = Never
null passwords = No
obey pam restrictions = No
password server = *
smb passwd file = /etc/opt/csw/samba/private/smbpasswd
private dir = /etc/opt/csw/samba/private
passdb backend = smbpasswd
algorithmic rid base = 1000
root directory =
guest account = nobody
enable privileges = Yes
pam password change = No
passwd program =
passwd chat = *new*password* %n\n *new*password* %n\n *changed*
passwd chat debug = No
passwd chat timeout = 2
check password script =
username map =
password level = 0
username level = 0
unix password sync = No
restrict anonymous = 0
lanman auth = No
ntlm auth = Yes
client NTLMv2 auth = No
client lanman auth = No
client plaintext auth = No
preload modules =
use kerberos keytab = No
log level = 0
syslog = 1
syslog only = No
log file =
max log size = 5000
debug timestamp = Yes
debug prefix timestamp = No
debug hires timestamp = No
debug pid = No
debug uid = No
debug class = No
enable core files = Yes
smb ports = 445 139
large readwrite = Yes
max protocol = NT1
min protocol = CORE
min receivefile size = 0
read raw = Yes
write raw = Yes
disable netbios = No
reset on zero vc = No
acl compatibility = auto
defer sharing violations = Yes
nt pipe support = Yes
nt status support = Yes
announce version = 4.9
announce as = NT
max mux = 50
max xmit = 16644
name resolve order = lmhosts wins host bcast
max ttl = 259200
max wins ttl = 518400
min wins ttl = 21600
time server = No
unix extensions = Yes
use spnego = Yes
client signing = auto
server signing = No
client use spnego = Yes
client ldap sasl wrapping = plain
enable asu support = No
svcctl list =
deadtime = 0
getwd cache = Yes
keepalive = 300
lpq cache time = 30
max smbd processes = 0
paranoid server security = Yes
max disk size = 0
max open files = 10000
socket options = TCP_NODELAY
use mmap = Yes
hostname lookups = No
name cache timeout = 660
ctdbd socket =
cluster addresses =
clustering = No
load printers = No
printcap cache time = 750
printcap name = /dev/null
cups server =
iprint server =
disable spoolss = Yes
addport command =
enumports command =
addprinter command =
deleteprinter command =
show add printer wizard = Yes
os2 driver map =
mangling method = hash2
mangle prefix = 1
max stat cache size = 256
stat cache = Yes
machine password timeout = 604800
add user script =
rename user script =
delete user script =
add group script =
delete group script =
add user to group script =
delete user from group script =
set primary group script =
add machine script =
shutdown script =
abort shutdown script =
username map script =
logon script =
logon path = \\%N\%U\profile
logon drive =
logon home = \\%N\%U
domain logons = No
os level = 20
lm announce = Auto
lm interval = 60
preferred master = No
local master = Yes
domain master = Auto
browse list = Yes
enhanced browsing = Yes
dns proxy = Yes
wins proxy = No
wins server =
wins support = No
wins hook =
kernel oplocks = Yes
lock spin time = 200
oplock break wait time = 0
ldap admin dn =
ldap delete dn = No
ldap group suffix =
ldap idmap suffix =
ldap machine suffix =
ldap passwd sync = no
ldap replication sleep = 1000
ldap suffix =
ldap ssl =
ldap timeout = 15
ldap connection timeout = 2
ldap page size = 1024
ldap user suffix =
ldap debug level = 0
ldap debug threshold = 10
eventlog list =
add share command =
change share command =
delete share command =
config file =
preload =
lock directory = /var/opt/csw/samba/lock
pid directory = /var/opt/csw/samba
utmp directory =
wtmp directory =
utmp = No
default service =
message command =
get quota command =
set quota command =
remote announce =
remote browse sync =
socket address = 0.0.0.0
homedir map =
afs username map =
afs token lifetime = 604800
log nt token command =
time offset = 0
NIS homedir = No
registry shares = No
usershare allow guests = No
usershare max shares = 0
usershare owner only = Yes
usershare path = /var/opt/csw/samba/lock/usershares
usershare prefix allow list =
usershare prefix deny list =
usershare template share =
panic action =
host msdfs = Yes
passdb expand explicit = No
idmap domains =
idmap backend =
idmap alloc backend =
idmap cache time = 900
idmap negative cache time = 120
idmap uid =
idmap gid =
template homedir = /home/%D/%U
template shell = /bin/false
winbind separator = \
winbind cache time = 300
winbind enum users = No
winbind enum groups = No
winbind use default domain = No
winbind trusted domains only = No
winbind nested groups = Yes
winbind expand groups = 1
winbind nss info = template
winbind refresh tickets = No
winbind offline logon = No
winbind normalize names = No
winbind rpc only = No
comment =
path =
username =
invalid users =
valid users =
admin users =
read list =
write list =
printer admin =
force user =
force group =
read only = Yes
acl check permissions = Yes
acl group control = No
acl map full control = Yes
create mask = 0744
force create mode = 00
security mask = 0777
force security mode = 00
directory mask = 0755
force directory mode = 00
directory security mask = 0777
force directory security mode = 00
force unknown acl user = No
inherit permissions = No
inherit acls = No
inherit owner = No
guest only = No
administrative share = No
guest ok = No
only user = No
hosts allow = 192.168.35.0/24, 127.
hosts deny = ALL
allocation roundup size = 1048576
aio read size = 0
aio write size = 0
aio write behind =
ea support = No
nt acl support = Yes
profile acls = No
map acl inherit = No
afs share = No
smb encrypt = auto
block size = 1024
change notify = Yes
directory name cache size = 100
kernel change notify = Yes
max connections = 0
min print space = 0
strict allocate = No
strict sync = No
sync always = No
use sendfile = No
write cache size = 0
max reported print jobs = 0
max print jobs = 1000
printable = No
printing = bsd
cups options =
print command = lpr -r -P'%p' %s
lpq command = lpq -P'%p'
lprm command = lprm -P'%p' %j
lppause command = lp -i %p-%j -H hold
lpresume command = lp -i %p-%j -H resume
queuepause command = disable %p
queueresume command = enable %p
printer name =
use client driver = No
default devmode = Yes
force printername = No
printjob username = %U
default case = lower
case sensitive = Auto
preserve case = Yes
short preserve case = Yes
mangling char = ~
hide dot files = Yes
hide special files = No
hide unreadable = No
hide unwriteable files = No
delete veto files = No
veto files =
hide files =
veto oplock files =
map archive = Yes
map hidden = No
map system = No
map readonly = yes
mangled names = Yes
store dos attributes = No
dmapi support = No
browseable = Yes
blocking locks = Yes
csc policy = manual
fake oplocks = No
locking = Yes
oplocks = Yes
level2 oplocks = Yes
oplock contention limit = 2
posix locking = Yes
strict locking = Auto
share modes = Yes
dfree cache time = 0
dfree command =
copy =
include =
preexec =
preexec close = No
postexec =
root preexec =
root preexec close = No
root postexec =
available = Yes
volume =
fstype = NTFS
set directory = No
wide links = Yes
follow symlinks = Yes
dont descend =
magic script =
magic output =
delete readonly = No
dos filemode = No
dos filetimes = Yes
dos filetime resolution = No
fake directory create times = No
vfs objects =
msdfs root = No
msdfs proxy =
[printers]
comment = All Printers
path = /var/spool/samba
guest ok = Yes
printable = Yes
browseable = No
[os200805]
comment = writable share
path = /export/nfs/samba/share/os200805
read only = No
[tmp]
comment = temporary files
path = /tmp
any issues seen there ?
Note also ...
root at aequitas:~# /opt/csw/sbin/smbd -b | head -21
Build environment:
Built by: dclarke at titan
Built on: Fri Aug 22 19:31:13 EDT 2008
Built using: cc
Build host: SunOS titan 5.8 Generic_117351-55 i86pc i386 i86pc
SRCDIR:
/export/nfs/dclarke/build/samba/samba-3.2.2-build/../samba-3.2.2/source
BUILDDIR: /export/nfs/dclarke/build/samba/samba-3.2.2-build
Paths:
SBINDIR: /opt/csw/sbin
BINDIR: /opt/csw/bin
SWATDIR: /opt/csw/share/samba/swat
CONFIGFILE: /etc/opt/csw/samba/smb.conf
LOGFILEBASE: /var/opt/csw/samba/state
LMHOSTSFILE: /etc/opt/csw/samba/lmhosts
LIBDIR: /opt/csw/lib
SHLIBEXT: so
LOCKDIR: /var/opt/csw/samba/lock
PIDDIR: /var/opt/csw/samba
SMB_PASSWD_FILE: /etc/opt/csw/samba/private/smbpasswd
PRIVATE_DIR: /etc/opt/csw/samba/private
root at aequitas:~# /opt/csw/sbin/smbd -b | tail -3
Builtin modules:
pdb_ldap pdb_smbpasswd pdb_tdbsam rpc_lsarpc rpc_winreg
rpc_initshutdown rpc_dssetup rpc_wkssvc rpc_svcctl2 rpc_ntsvcs2
rpc_netlogon rpc_netdfs rpc_srvsvc rpc_spoolss rpc_eventlog2 rpc_samr
idmap_ldap idmap_tdb idmap_passdb idmap_nss nss_info_template auth_sam
auth_unix auth_winbind auth_server auth_domain auth_builtin
vfs_default vfs_solarisacl
root at aequitas:~#
Dennis Clarke
http://www.blastwave.org/
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