Public bug reported:
Two patches have landed upstream that improve thunderx nic performance:
commit b6e4038262bc933f2ef5427b6bcd2607d02ba4bb
Merge: 9bd160b 1d36879
Author: David S. Miller <da...@davemloft.net>
Date: Mon Mar 14 12:33:37 2016 -0400
Merge branch 'thunderx-perf'
Sunil Goutham says:
====================
net: thunderx: Performance enhancement changes
Below patches attempts to improve performance by reducing
no of atomic operations while allocating new receive buffers
and reducing cache misses by adjusting nicvf structure elements.
Changes from v1:
No changes, resubmitting a fresh as per David's suggestion.
====================
Signed-off-by: David S. Miller <da...@davemloft.net>
commit 1d368790bc2d4111feae6fcc0b3b68d6ae92ff0f
Author: Sunil Goutham <sgout...@cavium.com>
Date: Mon Mar 14 16:36:15 2016 +0530
net: thunderx: Adjust nicvf structure to reduce cache misses
Adjusted nicvf structure such that all elements used in hot
path like napi, xmit e.t.c fall into same cache line. This reduced
no of cache misses and resulted in ~2% increase in no of packets
handled on a core.
Also modified elements with :1 notation to boolean, to be
consistent with other element definitions.
Signed-off-by: Sunil Goutham <sgout...@cavium.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
commit 5c2e26f6f674ee93719769d024cc72fad3ba9134
Author: Sunil Goutham <sgout...@cavium.com>
Date: Mon Mar 14 16:36:14 2016 +0530
net: thunderx: Set recevie buffer page usage count in bulk
Instead of calling get_page() for every receive buffer carved out
of page, set page's usage count at the end, to reduce no of atomic
calls.
Signed-off-by: Sunil Goutham <sgout...@cavium.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
** Affects: linux (Ubuntu)
Importance: Medium
Assignee: dann frazier (dannf)
Status: In Progress
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https://bugs.launchpad.net/bugs/1567093
Title:
thunderx nic performance improvements
Status in linux package in Ubuntu:
In Progress
Bug description:
Two patches have landed upstream that improve thunderx nic
performance:
commit b6e4038262bc933f2ef5427b6bcd2607d02ba4bb
Merge: 9bd160b 1d36879
Author: David S. Miller <da...@davemloft.net>
Date: Mon Mar 14 12:33:37 2016 -0400
Merge branch 'thunderx-perf'
Sunil Goutham says:
====================
net: thunderx: Performance enhancement changes
Below patches attempts to improve performance by reducing
no of atomic operations while allocating new receive buffers
and reducing cache misses by adjusting nicvf structure elements.
Changes from v1:
No changes, resubmitting a fresh as per David's suggestion.
====================
Signed-off-by: David S. Miller <da...@davemloft.net>
commit 1d368790bc2d4111feae6fcc0b3b68d6ae92ff0f
Author: Sunil Goutham <sgout...@cavium.com>
Date: Mon Mar 14 16:36:15 2016 +0530
net: thunderx: Adjust nicvf structure to reduce cache misses
Adjusted nicvf structure such that all elements used in hot
path like napi, xmit e.t.c fall into same cache line. This reduced
no of cache misses and resulted in ~2% increase in no of packets
handled on a core.
Also modified elements with :1 notation to boolean, to be
consistent with other element definitions.
Signed-off-by: Sunil Goutham <sgout...@cavium.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
commit 5c2e26f6f674ee93719769d024cc72fad3ba9134
Author: Sunil Goutham <sgout...@cavium.com>
Date: Mon Mar 14 16:36:14 2016 +0530
net: thunderx: Set recevie buffer page usage count in bulk
Instead of calling get_page() for every receive buffer carved out
of page, set page's usage count at the end, to reduce no of atomic
calls.
Signed-off-by: Sunil Goutham <sgout...@cavium.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
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