tree 3f43cd2e8b31e71ea928e603bf87a27c0da90797
parent 72653ae5303c626ca29fcbcbb8165a894a104adf
author Eric Dumazet <edumazet@google.com> 1597943478 -0700
committer David S. Miller <davem@davemloft.net> 1597965293 -0700

selftests: net: tcp_mmap: Use huge pages in receive path

One down side of using TCP rx zerocopy is one extra TLB miss
per page after the mapping operation.

While if the application is using hugepages, the non zerocopy
recvmsg() will not have to pay these TLB costs.

This patch allows server side to use huge pages for
the non zero copy case, to allow fair comparisons when
both solutions use optimal conditions.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Arjun Roy <arjunroy@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>