Re: Network very very slow... was iSCSI and jumbo frames

[RVP <rvp%SDF.ORG@localhost>]

On Wed, 3 Feb 2021, BERTRAND Joël wrote:

> raid0 and dk0 (raid1) are local disks, dk5 is my qNAP NAS.

Of course. You mentioned it was iSCSI.

> legendre# dd if=/dev/zero of=/opt/bacula/test.dd count=100 bs=1m
> 100+0 records in
> 100+0 records out
> 104857600 bytes transferred in 0.313 secs (335008306 bytes/sec)

This is OK.

> legendre# dd if=/dev/zero of=/opt/bacula/test.dd count=1000 bs=1m
> 1000+0 records in
> 1000+0 records out
> 1048576000 bytes transferred in 53.680 secs (19533830 bytes/sec)
>
> legendre# dd if=/dev/zero of=/opt/bacula/test.dd count=10000 bs=1m
> 10000+0 records in
> 10000+0 records out
> 10485760000 bytes transferred in 1046.321 secs (10021551 bytes/sec)

Can you retry with `iflag=direct oflag=creat,direct' added?

-RVP