On Thu, 2011-09-29 at 04:20 -0700, reaper wrote:
> Hello.
>
> I saw this post recently
> http://www.mail-archive.com/bacula-users@lists.sourceforge.net/msg47393.html
> and it seems I'm affected by this problem too. Bacula shows extremely low
> performance in networks with high rtt. I have sd in Germany and client in
> USA. Bacula can make backups on speeds between 5 to 10 Mbit/s which is too
> slow as backups are up to 600 GB. With simple iperf test I can achieve
> transfer rates about 100-120 Mbit/s. Why bacula cannot do the same?
> Compression does not affect transfer speed. Client has plenty of free
> CPU/memory.
>
> I've made ssh tunnel between hosts and set Address = 127.0.0.1 in Storage
> section. With this configuration I can see backups are running at speeds
> about 100 Mbit/s.
>
> Bacula version is 5.0.2 from Debian Lenny backports.
hi reaper,
sounds like your sysctl.conf needs tweaking? have you tried something
like this on both sides?
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
# long fat pipes
net.core.wmem_max = 8388608
net.core.rmem_max = 8388608
cheers
m
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