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97b2409f28
We used to do twice copy_from_iter() to copy virtio-net and packet separately. This introduce overheads for userspace access hardening as well as SMAP (for x86 it's stac/clac). So this patch tries to use one copy_from_iter() to copy them once and move the virtio-net header afterwards to reduce overheads. Testpmd + vhost_net shows 10% improvement from 5.45Mpps to 6.0Mpps. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://patch.msgid.link/20250701010352.74515-2-jasowang@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
History
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| .. | ||
| iotlb.c | ||
| Kconfig | ||
| Makefile | ||
| net.c | ||
| scsi.c | ||
| test.c | ||
| test.h | ||
| vdpa.c | ||
| vhost.c | ||
| vhost.h | ||
| vringh.c | ||
| vsock.c | ||