正如标题所述，我尝试在 Windows 7 和在 Ubuntu 11.10 和 12.04 上运行的 samba 服务器之间传输文件，但都显示传输速度非常慢。
有人可以指导我如何正确地调试这个问题吗？
wget --output-document=/dev/null http://tokyo1.linode.com/100MB-tokyo.bin
--2012-08-21 22:02:17-- http://tokyo1.linode.com/100MB-tokyo.bin
Resolving tokyo1.linode.com (tokyo1.linode.com)... 106.187.33.12
Connecting to tokyo1.linode.com (tokyo1.linode.com)|106.187.33.12|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `/dev/null'
8% [=============> ] 8,923,980 64.8K/s eta 15m 0s
wlan0 IEEE 802.11abgn ESSID:"TNET"
Mode:Managed Frequency:2.462 GHz Access Point: 58:6D:8F:26:20:7A
Bit Rate=117 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=57/70 Signal level=-53 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:101 Invalid misc:2448 Missed beacon:0
03:00.0 Network controller: Atheros Communications Inc. AR9300 Wireless LAN adaptor (rev 01)
Subsystem: Atheros Communications Inc. Device 3112
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx+
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fea00000 (64-bit, non-prefetchable) [size=128K]
Expansion ROM at fea20000 [disabled] [size=64K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <1us, L1 <8us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <2us, L1 <64us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [300 v1] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: ath9k
Kernel modules: ath9k
答案1
我可能仅通过几个简单的步骤就解决了这个问题。
首先，安装最新的 compat-wireless 驱动程序，然后对 samba 配置进行一些更改以提高传输速率。这肯定是驱动程序有问题……我可以通过下载文件进行验证。安装最新驱动程序后，下载速率提高了 1.0+ MB/s。
要下载并安装最新的驱动程序，
wget http://www.orbit-lab.org/kernel/compat-wireless-3-stable/v3.5/compat-wireless-3.5.1-1.tar.bz2
tar jxvf compat-wireless-3.5.1-1.tar.bz2; cd compat-wireless-3.5.1-1
编译驱动程序：
./scripts/driver-select ath9k
make
sudo make install
对 Samba 配置进行了以下更改，
[global]
max protocol = NT1
socket options = TCP_NODELAY
Samba 传输速率也上升到了 1.0 MB/s。如果这对解决您的问题有帮助，请告诉我 ;)