[LU-535] softraid improvements for RHEL6 U1 Created: 26/Jul/11  Updated: 13/Feb/19  Resolved: 13/Feb/19

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.4.0
Fix Version/s: None

Type: Improvement Priority: Minor
Reporter: Alexey Lyashkov Assignee: Bob Glossman (Inactive)
Resolution: Won't Do Votes: 0
Labels: patch
Environment:

RHEL6 U1 Now RHEL 6.3


Rank (Obsolete): 9724

 Description   

porting soft raid improvements (like zero copy writes) to RHEL6.



 Comments   
Comment by Alexey Lyashkov [ 26/Jul/11 ]

remote: New Changes:
remote: http://review.whamcloud.com/1142

Comment by Keith Mannthey (Inactive) [ 13/Sep/12 ]

We seem to be on RHEL6.3 now. Is it safe to close this issue or do you care re-base against current code?

Comment by Michael McKay (Inactive) [ 14/Sep/12 ]

I have re-based the changes to the latest kernel and they are being reviewed in house by Xyratex first. I will post the changes to the review once they have been approved here.

Comment by Keith Mannthey (Inactive) [ 03/Oct/12 ]

Can you provide some performance numbers about the pro/cons of these changes?

Comment by Michael McKay (Inactive) [ 04/Oct/12 ]

These are simply a port of the changes that had already been present in rhel5 for some time.

Comment by Keith Mannthey (Inactive) [ 08/Oct/12 ]

Did they become apart of RHEL5? Have these patches ever been submitted upstream?

Comment by Nathan Rutman [ 26/Nov/12 ]

Xyratex-bug-id: MRP-678

Comment by Keith Mannthey (Inactive) [ 04/Jan/13 ]

Any update?

Comment by Michael McKay (Inactive) [ 08/Jan/13 ]

I have just uploaded a new set of changes to the review. This contains changes so resolve the 32 bit compilation errors.

Comment by Keith Mannthey (Inactive) [ 13/Feb/13 ]

Have these patches ever been submitted upstream?

What are the performance benefits? EL5 and EL6 are different code bases. They might not need to the same tweets. In general the few Kernel proper patches Lustre carries the better.

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