[ltp] T21 Slow Network

[Richard Bellin]

Greetings All,
  
  Thanx to all of you who responded with ideas as to
the cause of this problem. Here is some more
information based on those suggestions:

  1) I booted the system with a Knoppix CD. It would 
appear that Knoppix has the  same 2mb/sec limit doing
SMB transfers that I have on SuSe.
 
  2) It was suggested that there may be a DMA problem
or a wrong disk driver. Note that this disk is NOT the
original drive. It is a 60gb/7200rpm Hitachi. Here is
/sbin/hdparm output:

 /dev/hda:
 multcount    = 16 (on)
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    = 256 (on)
 geometry     = 16383/255/63, sectors = 117210240,
start = 0

 /sbin/lsmod output:
 Module                  Size  Used by
nls_cp850               4992  5 
nls_utf8                2176  5 
smbfs                  58616  6 
ipv6                  230272  12 
snd_pcm_oss            46240  0 
snd_mixer_oss          17024  1 snd_pcm_oss
snd_seq_midi            8480  0 
snd_seq_midi_event      7040  1 snd_seq_midi
snd_seq                46480  2
snd_seq_midi,snd_seq_midi_event
af_packet              21000  0 
edd                     9440  0 
intel_agp              21020  1 
agpgart                31816  1 intel_agp
snd_cs46xx             79688  0 
gameport               14984  2 snd_cs46xx
e100                   36996  0 
snd_rawmidi            23840  2
snd_seq_midi,snd_cs46xx
snd_seq_device          8204  3
snd_seq_midi,snd_seq,snd_rawmidi
uhci_hcd               29840  0 
snd_ac97_codec         83360  1 snd_cs46xx
snd_ac97_bus            2304  1 snd_ac97_codec
snd_pcm                80136  3
snd_pcm_oss,snd_cs46xx,snd_ac97_codec
snd_timer              23044  2 snd_seq,snd_pcm
snd                    51300  9
snd_pcm_oss,snd_mixer_oss,snd_seq,snd_cs46xx,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm,snd_timer
snd_page_alloc          9992  2 snd_cs46xx,snd_pcm
parport_pc             36932  1 
lp                     10692  0 
parport                35144  2 parport_pc,lp
nls_iso8859_1           4224  4 
nls_cp437               5888  4 
processor              23488  0 
  
  3) Another suggestion was to check mii-tool for 
the card speed, and to check ifconfig for errors. 
I do not have mii-tool installed, but ethtool 
gave me this output:

  Settings for eth0:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	Advertised auto-negotiation: Yes
	Speed: 100Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 1
	Transceiver: internal
	Auto-negotiation: on
	Supports Wake-on: g
	Wake-on: g
	Current message level: 0x00000007 (7)
	Link detected: yes

 Output of ifconfig:

  eth0      Link encap:Ethernet  HWaddr
00:10:A4:92:9A:F0  
          inet addr:192.168.0.101  Bcast:192.168.0.255
 Mask:255.255.255.0
          inet6 addr: fe80::210:a4ff:fe92:9af0/64
Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST 
MTU:1500  Metric:1
          RX packets:410482 errors:0 dropped:0
overruns:0 frame:0
          TX packets:615526 errors:0 dropped:0
overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:37639943 (35.8 Mb)  TX
bytes:894098086 (852.6 Mb)

lo        Link encap:Local 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:160 errors:0 dropped:0 overruns:0
frame:0
          TX packets:160 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:11599 (11.3 Kb)  TX bytes:11599
(11.3 Kb)

   
   4) Lastly, it was suggested that I try other
hardware. I was able to locate a PCMCIA card to try,
and this actually improved the transfer rate! I was 
able to get double (4mb/sec) the rate of the built-in
connection. However, it is still a far cry from the 
20mb/sec+ that I seem to be getting when running 
that "other" operating system. 

 I'm still in the dark as to what the problem might
be, and if there is anything that I can do to solve
it. 


  Thanx again for all of your assistance. 

   Rich 
  


> Greetings All,
> 
>   I have a T21 Thinkpad that I am having network
> problems with under Linux. 
> 
>  The Thinkpad is attached to an internal 100bt
network
> with a NETGEAR FR114p router, which is also attached

> to a DSL modem. The network adapter in the Thinkpad 
> is an Intel EtherExpress Pro/100+ MiniPCI. The Linux

> version on the Thinkpad is SUSE 10. 
> 
>  The problem is that data transfers between this
> laptop
> and any other computer on the local network are VERY
> slow. It would appear that transfer rates are
> throttled at 2mb per second. In fact I can transfer
> files from systems on the Internet (through the DSL
> connection) faster than I can between another
machine
> on the internal network!
  


 

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