Red Hat Bugzilla – Bug 1016724
infiniband - performance regression fixes
Last modified: 2015-04-01 17:24:53 EDT
Description of problem:
Customers discovered performance regression using Mellanox h/w and IBM Websphere Low Latency Messageing (WLLM).
Apply series of three patches to MRG Realtime kernels for this problem.
Created attachment 809352 [details]
IB/cma - use cached gids
Created attachment 809353 [details]
IB/cma - check for gid on listening device dirst
Created attachment 809354 [details]
IB/cache - don't fill the cache with junk
Picked up IB performance updates with later refresh of the tree.