>>> "Mark Lehrer" <[email protected]> schrieb am 25.08.2014 um 20:58 in Nachricht <[email protected]>: >> > I am trying to achieve10Gbps in my single initiator/single target >>> env. (open-iscsi and IET) > > On a semi-related note, are there any good guides out there to tuning Linux > for maximum single-socket performance? On my 40 gigabit setup, I seem to
Hi! You are referring to networks sockets, not to CPU sockets, I guess. Have you tried larger packets (if you can control the LAN). I don't know if open iSCSI can do IPv6, but from what I read IPv6 could give better TCP performance. Have you checked interrupt assignments for the NIC? I guess your card is PCIe and it uses one lane? Have you tried (for comparison) to do just a "netcat" to/from /dev/zero? You have to analyze the groups, hardware, network stack and iSCSI separately, I guess. iSCSI can not do any better than the networks stack, and the network stack cannot do better than the hardware can. Regards, Ulrich > hit a wall around 3 gigabits when doing a single TCP socket. To go far > above that I need to do multipath, initiator-side RAID, or RDMA. > > Thanks, > Mark > > -- > You received this message because you are subscribed to the Google Groups > "open-iscsi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/open-iscsi. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
