Медленно работает самба

[GooG1e]

К мини серверу подсоединяюсь по самбе для скачки файлов, но последнее время он стал тормозить - выдает максимум на скачку 25Мбайт\с, а на загрузку всего 4-6Мбайт\с(при канале 1Гигабит). Прошу помочь с настройкой.
Вот конфиг самбы

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#
# Sample configuration file for the Samba suite for Debian GNU/Linux.
#
#
# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options most of which
# are not shown in this example
#
# Some options that are often worth tuning have been included as
# commented-out examples in this file.
#  - When such options are commented with ";", the proposed setting
#    differs from the default Samba behaviour
#  - When commented with "#", the proposed setting is the default
#    behaviour of Samba but the option is considered important
#    enough to be mentioned here
#
# NOTE: Whenever you modify this file you should run the command
# "testparm" to check that you have not made any basic syntactic
# errors.
# A well-established practice is to name the original file
# "smb.conf.master" and create the "real" config file with
# testparm -s smb.conf.master >smb.conf
# This minimizes the size of the really used smb.conf file
# which, according to the Samba Team, impacts performance
# However, use this with caution if your smb.conf file contains nested
# "include" statements. See Debian bug #483187 for a case
# where using a master file is not a good idea.
#

#======================= Global Settings =======================

[global]
log file = /dev/null
        log level = 0
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
obey pam restrictions = yes
null passwords = yes
map to guest = bad user
encrypt passwords = true
passwd program = /usr/bin/passwd %u
passdb backend = tdbsam
dns proxy = no
netbios name = RUSSIA-SERVER
unix password sync = yes
workgroup = RUSSIA
os level = 20
syslog = 0
preferred master = no
usershare allow guests = yes
panic action = /usr/share/samba/panic-action %d
max log size = 1000
pam password change = yes

## Browsing/Identification ###

# Change this to the workgroup/NT-domain name your Samba server will part of

# server string is the equivalent of the NT Description field

# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable its WINS Server
#   wins support = no

# WINS Server - Tells the NMBD components of Samba to be a WINS Client
# Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
;   wins server = w.x.y.z

# This will prevent nmbd to search for NetBIOS names through DNS.

# What naming service and in what order should we use to resolve host names
# to IP addresses
;   name resolve order = lmhosts host wins bcast

#### Networking ####

# The specific set of interfaces / networks to bind to
# This can be either the interface name or an IP address/netmask;
# interface names are normally preferred
;   interfaces = 127.0.0.0/8 eth0

# Only bind to the named interfaces and/or networks; you must use the
# 'interfaces' option above to use this.
# It is recommended that you enable this feature if your Samba machine is
# not protected by a firewall or is a firewall itself.  However, this
# option cannot handle dynamic or non-broadcast interfaces correctly.
;   bind interfaces only = yes



#### Debugging/Accounting ####

# This tells Samba to use a separate log file for each machine
# that connects

# Cap the size of the individual log files (in KiB).

# If you want Samba to only log through syslog then set the following
# parameter to 'yes'.
#   syslog only = no

# We want Samba to log a minimum amount of information to syslog. Everything
# should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
# through syslog you should set the following parameter to something higher.

# Do something sensible when Samba crashes: mail the admin a backtrace


####### Authentication #######

# "security = user" is always a good idea. This will require a Unix account
# in this server for every user accessing the server. See
# /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/ServerType.html
# in the samba-doc package for details.
   security = user

# You may wish to use password encryption.  See the section on
# 'encrypt passwords' in the smb.conf(5) manpage before enabling.

# If you are using encrypted passwords, Samba will need to know what
# password database type you are using. 


# This boolean parameter controls whether Samba attempts to sync the Unix
# password with the SMB password when the encrypted SMB password in the
# passdb is changed.

# For Unix password sync to work on a Debian GNU/Linux system, the following
# parameters must be set (thanks to Ian Kahan <<kahan@informatik.tu-muenchen.de> for
# sending the correct chat script for the passwd program in Debian Sarge).

# This boolean controls whether PAM will be used for password changes
# when requested by an SMB client instead of the program listed in
# 'passwd program'. The default is 'no'.

# This option controls how unsuccessful authentication attempts are mapped
# to anonymous connections

########## Domains ###########

# Is this machine able to authenticate users. Both PDC and BDC
# must have this setting enabled. If you are the BDC you must
# change the 'domain master' setting to no
#
;   domain logons = yes
#
# The following setting only takes effect if 'domain logons' is set
# It specifies the location of the user's profile directory
# from the client point of view)
# The following required a [profiles] share to be setup on the
# samba server (see below)
;   logon path = \\%N\profiles\%U
# Another common choice is storing the profile in the user's home directory
# (this is Samba's default)
#   logon path = \\%N\%U\profile

# The following setting only takes effect if 'domain logons' is set
# It specifies the location of a user's home directory (from the client
# point of view)
;   logon drive = H:
#   logon home = \\%N\%U

# The following setting only takes effect if 'domain logons' is set
# It specifies the script to run during logon. The script must be stored
# in the [netlogon] share
# NOTE: Must be store in 'DOS' file format convention
;   logon script = logon.cmd

# This allows Unix users to be created on the domain controller via the SAMR
# RPC pipe.  The example command creates a user account with a disabled Unix
# password; please adapt to your needs
; add user script = /usr/sbin/adduser --quiet --disabled-password --gecos "" %u

# This allows machine accounts to be created on the domain controller via the
# SAMR RPC pipe. 
# The following assumes a "machines" group exists on the system
; add machine script  = /usr/sbin/useradd -g machines -c "%u machine account" -d /var/lib/samba -s /bin/false %u

# This allows Unix groups to be created on the domain controller via the SAMR
# RPC pipe. 
; add group script = /usr/sbin/addgroup --force-badname %g

########## Printing ##########

# If you want to automatically load your printer list rather
# than setting them up individually then you'll need this
#   load printers = yes

# lpr(ng) printing. You may wish to override the location of the
# printcap file
;   printing = bsd
;   printcap name = /etc/printcap

# CUPS printing.  See also the cupsaddsmb(8) manpage in the
# cupsys-client package.
;   printing = cups
;   printcap name = cups

############ Misc ############

# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
;   include = /home/samba/etc/smb.conf.%m

# Most people will find that this option gives better performance.
# See smb.conf(5) and /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/speed.html
# for details
# You may want to add the following on a Linux system:
#         SO_RCVBUF=8192 SO_SNDBUF=8192
   socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

# The following parameter is useful only if you have the linpopup package
# installed. The samba maintainer and the linpopup maintainer are
# working to ease installation and configuration of linpopup and samba.
;   message command = /bin/sh -c '/usr/bin/linpopup "%f" "%m" %s; rm %s' &

# Domain Master specifies Samba to be the Domain Master Browser. If this
# machine will be configured as a BDC (a secondary logon server), you
# must set this to 'no'; otherwise, the default behavior is recommended.
#   domain master = auto

# Some defaults for winbind (make sure you're not using the ranges
# for something else.)
;   idmap uid = 10000-20000
;   idmap gid = 10000-20000
;   template shell = /bin/bash

# The following was the default behaviour in sarge,
# but samba upstream reverted the default because it might induce
# performance issues in large organizations.
# See Debian bug #368251 for some of the consequences of *not*
# having this setting and smb.conf(5) for details.
;   winbind enum groups = yes
;   winbind enum users = yes

# Setup usershare options to enable non-root users to share folders
# with the net usershare command.

# Maximum number of usershare. 0 (default) means that usershare is disabled.
;   usershare max shares = 100

# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones

#======================= Share Definitions =======================

# Un-comment the following (and tweak the other settings below to suit)
# to enable the default home directory shares.  This will share each
# user's home directory as \\server\username
;[homes]
;   comment = Home Directories
;   browseable = no

# By default, the home directories are exported read-only. Change the
# next parameter to 'no' if you want to be able to write to them.
;   read only = yes

# File creation mask is set to 0700 for security reasons. If you want to
# create files with group=rw permissions, set next parameter to 0775.
;   create mask = 0700

# Directory creation mask is set to 0700 for security reasons. If you want to
# create dirs. with group=rw permissions, set next parameter to 0775.
;   directory mask = 0700

# By default, \\server\username shares can be connected to by anyone
# with access to the samba server.  Un-comment the following parameter
# to make sure that only "username" can connect to \\server\username
# This might need tweaking when using external authentication schemes
;   valid users = %S

# Un-comment the following and create the netlogon directory for Domain Logons
# (you need to configure Samba to act as a domain controller too.)
;[netlogon]
;   comment = Network Logon Service
;   path = /home/samba/netlogon
;   guest ok = yes
;   read only = yes
;   share modes = no

# Un-comment the following and create the profiles directory to store
# users profiles (see the "logon path" option above)
# (you need to configure Samba to act as a domain controller too.)
# The path below should be writable by all users so that their
# profile directory may be created the first time they log on
;[profiles]
;   comment = Users profiles
;   path = /home/samba/profiles
;   guest ok = no
;   browseable = no
;   create mask = 0600
;   directory mask = 0700

[printers]
   comment = All Printers
   browseable = no
   path = /var/spool/samba
   printable = yes
   guest ok = no
   read only = yes
   create mask = 0700

# Windows clients look for this share name as a source of downloadable
# printer drivers
[print$]
   comment = Printer Drivers
   path = /var/lib/samba/printers
   browseable = yes
   read only = yes
   guest ok = no
# Uncomment to allow remote administration of Windows print drivers.
# You may need to replace 'lpadmin' with the name of the group your
# admin users are members of.
# Please note that you also need to set appropriate Unix permissions
# to the drivers directory for these users to have write rights in it
;   write list = root, @lpadmin

# A sample share for sharing your CD-ROM with others.
;[cdrom]
;   comment = Samba server's CD-ROM
;   read only = yes
;   locking = no
;   path = /cdrom
;   guest ok = yes

# The next two parameters show how to auto-mount a CD-ROM when the
# cdrom share is accesed. For this to work /etc/fstab must contain
# an entry like this:
#
#       /dev/scd0   /cdrom  iso9660 defaults,noauto,ro,user   0 0
#
# The CD-ROM gets unmounted automatically after the connection to the
#
# If you don't want to use auto-mounting/unmounting make sure the CD
# is mounted on /cdrom
#
;   preexec = /bin/mount /cdrom
;   postexec = /bin/umount /cdrom




[home]
revalidate = yes
writeable = yes
valid users = goog2e
user = goog2e
only user = yes
path = /home
write list = goog2e
        force directory mode = 0777
        force create mode = 0777

[root]
writeable = yes
only user = yes
path = /
write list = goog2e
revalidate = yes
valid users = goog2e
user = goog2e

[andrei]
valid users = andrei,@goog2e
writeable = yes
force create mode = 0775
user = andrei,@goog2e
write list = andrei,@goog2e
path = /home/andrei
force directory mode = 0775

[share]
writeable = yes
guest only = yes
public = yes
path = /home/share
        force directory mode = 0777
        force create mode = 0777
[yulia]
writeable = yes
write list = yulia,@goog2e
path = /home/yulia
valid users = yulia,@goog2e
force create mode = 775
user = yulia,@goog2e
force directory mode = 0775


И вот параметры ifconfig

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Код: [Выделить]

eth0      Link encap:Ethernet  HWaddr 00:01:2e:2c:02:7f
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:9000  Metric:1
          RX packets:15495344 errors:13172 dropped:0 overruns:0 frame:13172
          TX packets:10432234 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:14403924675 (14.4 GB)  TX bytes:16527151446 (16.5 GB)
          Interrupt:21 Base address:0x8000

lo        Link encap:Локальная петля (Loopback)
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:10 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:652 (652.0 B)  TX bytes:652 (652.0 B)


Данные ethtool

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Код: [Выделить]

Settings for eth0:
        Supported ports: [ MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Link partner advertised link modes:  Not reported
        Link partner advertised pause frame use: No
        Link partner advertised auto-negotiation: No
        Speed: 1000Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 3
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Link detected: yes


[fisher74]

Код: [Выделить]

sudo hdparm -tT /dev/sda2Ну и неплох сеточку проверить на пропускную способность, например iperf

[GooG1e]

sudo hdparm -tT /dev/sda2

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Код: [Выделить]

/dev/sda2:
 Timing cached reads:   934 MB in  2.00 seconds = 466.17 MB/sec
 Timing buffered disk reads:   98 MB in  3.06 seconds =  32.03 MB/sec


Проверка через iperf(случай 1 - мини-сервер является сервером комп под windows 7 клиентом)

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Код: [Выделить]

goog2e@RUSSIA-SERVER:~$ sudo iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 192.168.1.2 port 5001 connected with 192.168.1.3 port 62965
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-10.0 sec    736 KBytes    600 Kbits/sec


Проверка через iperf(случай 2 - мини-сервер является клиентом комп под windows 7 сервером)

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Код: [Выделить]

goog2e@RUSSIA-SERVER:~$ sudo iperf -c 192.168.1.3
------------------------------------------------------------
Client connecting to 192.168.1.3, TCP port 5001
TCP window size: 27.9 KByte (default)
------------------------------------------------------------
[  3] local 192.168.1.2 port 39920 connected with 192.168.1.3 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec    942 MBytes    790 Mbits/sec


P.S. Из-за чего такая разница хз. Раньше она тоже была но составляла примерно 200-500 Мбит\с, а щас такая фигня

[victor00000]

жесткий диск фигня  Timing buffered disk reads:   98 MB in  3.06 seconds =  32.03 MB

[GooG1e]

Это файл сервер, а не супер-комп. Плюс прошу учесть, что он ещё и считал это раздавая торрент под 5 мбит\с(порядка 40-50 активных торрентов)

[fisher74]

Ну, судя по скорости чтения диска - скорость скачивания 25МБ/с  вполне объянимая цифра. Да и скорость записи этим же можно объяснить.

Кстати странная картина с iperf. Я ожидал обратную проблему, косясь на кол-во фреймированных пакетов интерфейса. Надеюсь тестирование скоростей было не единождым?
Пользователь решил продолжить мысль 16 Марта 2011, 21:42:38:

eth0      Link encap:Ethernet  HWaddr 00:01:2e:2c:02:7f
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:9000  Metric:1

Гхммммм, а что это с MTU?
Пользователь решил продолжить мысль 16 Марта 2011, 21:44:56:а, да... гигабит же. Снимаю вопрос.

[GooG1e]

iperf уже второй раз за сегодня меряю(до этого мерил примерно тоже было)
ну MTU мне посоветовали изменить типа Jumbo Frame и шевелиться сеть вроде быстрей будет.
Вот скорость без нагрузки

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Код: [Выделить]

/dev/sda2:
 Timing cached reads:   1332 MB in  2.00 seconds = 665.62 MB/sec
 Timing buffered disk reads:  440 MB in  3.01 seconds = 146.35 MB/sec

На самом деле MTU я сам выставлял - изначально было 1500(и вроде как после этого тормозить стало, а может после изменения конфигов самбы - я не заметил точно)

[fisher74]

ну а вернуть обратно 1500 не пробовали, тем более, что есть мысли на его вину?

[GooG1e]

Я перезагрузился и mtu опять стал тем же.
Да и скорость стала при копировании 20-30Мбайт\с
Вот проверка через iperf
Проверка через iperf(случай 1 - мини-сервер является сервером комп под windows 7 клиентом)

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Код: [Выделить]

TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 192.168.1.2 port 5001 connected with 192.168.1.3 port 51912
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-10.0 sec    346 MBytes    291 Mbits/sec


Проверка через iperf(случай 2 - мини-сервер является клиентом комп под windows 7 сервером)

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Код: [Выделить]

TCP window size: 27.9 KByte (default)
------------------------------------------------------------
[  3] local 192.168.1.2 port 37256 connected with 192.168.1.3 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec    782 MBytes    656 Mbits/sec


И все равно разница достаточно странная!
Особенно TCP Window size

[victor00000]

5 компьютер жестдиски <--1G/s--> 5 компьютер жестдиски.
1 компьютер оперпамять <--1G/s--> 1 компьютер оперпамять.

[GooG1e]

Расшифровать можно то, что написано выше?

[hawk_t]

Имею две машины вин7 и Ubuntu 10.04, у обоих гигабитные сетевухи и общаются через гигабитный свич роутера ASUS RT-N56U.
Проблема в следующем: с вин7 на Ubuntu скорость копирования порядка 40 МБайт/сек, меньше чем ожидал, но устраивает. А вот наоборот, с убунты на вин7 около 6 Мбайт/с, что ни в какие ворота.
Где копать?
Конфиг самбы:

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[global]
workgroup = WORKGROUP
server string = Video
security = SHARE
guest account = hawk

[download]
path = /home/hawk/NAS/Видео
guest ok = Yes
guest only = Yes
writeable = Yes

[nas]
path = /home/hawk/NAS
create mask = 0777
directory mask = 0777
guest ok = Yes
guest only = Yes
writeable = Yes

ifconfig:

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eth0      Link encap:Ethernet  HWaddr 40:61:86:99:dd:50 
          inet addr:192.168.1.5  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::4261:86ff:fe99:dd50/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:154405869 errors:0 dropped:0 overruns:0 frame:0
          TX packets:259699711 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1771352540 (1.7 GB)  TX bytes:2249274298 (2.2 GB)
          Interrupt:25

eth1      Link encap:Ethernet  HWaddr 00:c0:26:31:c0:af 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:21 Base address:0xe800

lo        Link encap:Локальная петля (Loopback) 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:6807487 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6807487 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:422810776 (422.8 MB)  TX bytes:422810776 (422.8 MB)

Фаервол отключен (неактивен)
Testparm -s:

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testparm -s
Load smb config files from /etc/samba/smb.conf
rlimit_max: rlimit_max (1024) below minimum Windows limit (16384)
Processing section "[download]"
Processing section "[nas]"
Loaded services file OK.
Server role: ROLE_STANDALONE
[global]
   server string = Video
   security = SHARE
   guest account = hawk

[download]
   path = /home/hawk/NAS/Видео
   read only = No
   guest only = Yes
   guest ok = Yes

[nas]
   path = /home/hawk/NAS
   read only = No
   create mask = 0777
   directory mask = 0777
   guest only = Yes
   guest ok = Yes

добавлял строчку socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
в smb.conf
скорость выросла до 14 МБайт/c
где еще можно покрутить?

[veranyon]

Понятие "медленно работает samba" не односмысленно.

У меня скорость записи и чтения в порядке, но очень долго идет подключение к этой самой самбе с клиентов (момент авторизации), если секьюрити = юзер и доступ по паролю.

ради интереса, помимо убунты, на компе стоит еще и Slackware (на другом разделе). Так, вот с тем же конфигом под слакварью все мгновенно и перезапускается и подключается.

В логах ничего особенного. даже логлевел менять можно.

При подключении в логах:
tail /var/log/samba/log.192.168.1.2
   #13 smbd(smbd_process+0x9c0) [0xb6ee0e10]
   #14 smbd(+0x7083d0) [0xb74af3d0]
   #15 smbd(run_events_poll+0x366) [0xb71fc0c6]
   #16 smbd(+0x45527b) [0xb71fc27b]
   #17 smbd(_tevent_loop_once+0xa8) [0xb71fd048]
   #18 smbd(main+0x1234) [0xb6e4e7a4]
   #19 /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0xb69454d3]
   #20 smbd(+0xa7dd1) [0xb6e4edd1]
[2013/03/12 14:12:20.169395,  0] lib/fault.c:372(dump_core)
  dumping core in /var/log/samba/cores/smbd

3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:15:33 UTC 2013 i686 athlon i386 GNU/Linux

Отдаленно: https://launchpad.net/~kamalmostafa/+archive/bufferbloat

А что делать сейчас? Как бы работать нужно, люди.
Самба тупит.
Пользователь решил продолжить мысль 12 Марта 2013, 16:25:28:решилось:
так 1: add-apt-repository ppa:nathan-renniewaldock/ppa
apt-get update
apt-get install samba

и затем так:
smb.conf:
cat /etc/samba/smb.conf
[global]
workgroup = WORKGROUP
netbios name = filesrv
security = user
os level = 65

[share]
comment = share
path = /home/iron/1
public = yes
writable = yes
guest ok = yes

smbpasswd -a юзер
smbpasswd -e юзер

в итоге, можно ходить с любого клиента (winnt 5.x, 6.x, OS X 10.6, 10.7, 10. под паролем.

Но, скорость чтения записи по сети - да. странная. под слакварью была около 50, 60 MBps (~450 mbps) против 20, 30 MB здесь.