Slow Samba
Scott Pumer
rpumer at pobox.com
Thu Aug 19 23:55:53 UTC 2004
Thank you to all who responded!
I have found the problem! It is kernel related because when I boot with
2.6.6-1.435.2.3.smp the problem goes away. The kernel that is slow is
the current 2.6.7-1 kernel from the update servers.
The bad thing is there is a kernel oops in 2.6.6 with Samba so I really
wanted to use 2.6.7. Where would I get that testing kernel that Satish
Balay mentioned in an earlier email I'll give that a whirl.
Thanks,
Scott
Scott Pumer wrote:
> Hi all,
>
> I have googled and reviewed the fedora archives with no luck.
>
> Basically, copying large amounts of data to linux samba shares is very
> slow (150-1500mb transfers, multiple files) running about 40Kb/s
>
> FTPing by IP address or host file name resolution rocked!!! In
> the2-14Mb/s range.
>
> Is it a dns lookup problem?
>
> Details ----
> - I have IPv6 disabled.
> - According to gkrellm when I try to copy files from a windows xp box
> to my samba share on my linux machines I get about a 40k transfer
> rate. CPU utilization and HDD utilization is very low so clearly not
> the bottleneck. My transfer rate is identical with different network
> cards, different machines, 386 vs amd64, different kernels (2.6.6 and
> 2.6.7). I can download on my DSL modem at 150Kbs so assuming the
> units are correct it seems really slow.
>
> - I also tried to scp with about the same low transfer rates.
>
> When the really fast ftp transfer happens I see a the utilazation for
> both the cpu and hdd go up as expected simce it works so much faster.
>
> Thanks in Advance,
> Scott
>
>
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