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| author |   Horst Hartmann <horsth@linux.vnet.ibm.com> | 2011-02-17 13:13:59 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-02-17 13:13:59 +0100 |
| commit | dd30ac327481f1663b6526fa9fa078569188b7cc (patch) | |
| tree | 7e78bdbafc46bf0e70b89857c29c102676693d74 /kernel | |
| parent | [S390] atomic: use inline asm (diff) | |
| download | linux-dev-dd30ac327481f1663b6526fa9fa078569188b7cc.tar.xz linux-dev-dd30ac327481f1663b6526fa9fa078569188b7cc.zip | |
[S390] net: provide architecture specific NET_SKB_PAD
NET_SKB_PAD has been increased from 32 to 64 and later to
max(32, L1_CACHE_BYTES). This led to a 25% throughput decrease for
streaming workloads accompanied by a 37% CPU cost increase on s390.
Define a architecture specific NET_SKB_PAD with the old value of 32.
Signed-off-by: Horst Hartmann <horsth@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions