[LU-9425] Turn RDMA Fragment Fix on by default

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.10.0
• Fix Version/s: Lustre 2.10.0
• Type: Improvement
• Priority: Critical
• Reporter: Doug Oucharek (Inactive)
• Assignee: Doug Oucharek (Inactive)
• Resolution: Fixed
• Labels: lnet

Description

Now that fix for LU-5718 has landed, there is a question as to whether that fix should be "off" by default requiring a module parameter to activate it.  This ticket is a place to "debate" one way or the other and to change the default to "on" if that is what we want.

I seem to remember a concern about the doubling of SGEs using memory causing problems for LNet routers which may be memory-lean.

Thoughts?

Comments

[Gerrit Updater]

Doug Oucharek ([e-mail]) uploaded a new patch: https://review.whamcloud.com/26911
Subject: LU-9425 lnd: Turn on 2 sges by default
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: aa0600edaa564d5308d7889fbdf157c833077089

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/26911/
Subject: LU-9425 lnd: Turn on 2 sges by default
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: b76a5b14f558eb3b5eba41dbd0c440fe69e25fe4

[Peter Jones]

Landed for 2.10