fs-cifs write performace of 20KB/s

In a freshly installed RTP 6.1 machine, fs-cifs only writes at about 10KB/s
to my Win2K server, but it reads at “normal” speeds. I can FTP in the same
direction at about 2,000KB/s, so I don’t think it has anything to do with
the network configuration.

Other machines can write to the same share at normal speeds, including a
QNX4.25 box running SMBfsys.

Has anyone else run into this? Any fixes?

Thanks,
Larry

“Larry Martin” <Larry@syatech-no-junkmail.com> wrote in message
news:Xns915E5747ALarryxsyatechxcomxxx@209.226.137.7

In a freshly installed RTP 6.1 machine, fs-cifs only writes at about
10KB/s
to my Win2K server, but it reads at “normal” speeds. I can FTP in the
same
direction at about 2,000KB/s, so I don’t think it has anything to do with
the network configuration.

Other machines can write to the same share at normal speeds, including a
QNX4.25 box running SMBfsys.

Has anyone else run into this? Any fixes?

Are you using the devn-speedo network driver, for Intel chipset network
cards? I’ve had major intermittent performance problems with that.
Apparently there’s a new version on developers.qnx.com somewhere.

Tom

We’ve seen issues with MS stacks being too agressive with delayed
acks that lead to issues like this. fs-cifs has been patched
internally to set TCP_NODELAY to work around this. Will appear
in 6.1.1.

-seanb

Larry Martin <Larry@syatech-no-junkmail.com> wrote:
: In a freshly installed RTP 6.1 machine, fs-cifs only writes at about 10KB/s
: to my Win2K server, but it reads at “normal” speeds. I can FTP in the same
: direction at about 2,000KB/s, so I don’t think it has anything to do with
: the network configuration.

: Other machines can write to the same share at normal speeds, including a
: QNX4.25 box running SMBfsys.

: Has anyone else run into this? Any fixes?

: Thanks,
: Larry

“Tom” <tom_usenet@hotmail.com> wrote in <9tccaa$90b$1@inn.qnx.com>:

“Larry Martin” <> Larry@syatech-no-junkmail.com> > wrote in message
news:Xns915E5747ALarryxsyatechxcomxxx@209.226.137.7
In a freshly installed RTP 6.1 machine, fs-cifs only writes at about
10KB/s
to my Win2K server, but it reads at “normal” speeds. I can FTP in the
same
direction at about 2,000KB/s, so I don’t think it has anything to do
with the network configuration.

Other machines can write to the same share at normal speeds, including
a QNX4.25 box running SMBfsys.

Has anyone else run into this? Any fixes?

Are you using the devn-speedo network driver, for Intel chipset network
cards? I’ve had major intermittent performance problems with that.
Apparently there’s a new version on developers.qnx.com somewhere.

Nope, not using it. Like I said, my FTP performance is OK, so I’m
suspecting fs-cifs, not the network drivers.