Jesper Dangaard Brouer be5dba25b4 net: page_pool: use alloc_pages_bulk in refill code path ... There are cases where the page_pool need to refill with pages from the page allocator. Some workloads cause the page_pool to release pages instead of recycling these pages. For these workload it can improve performance to bulk alloc pages from the page-allocator to refill the alloc cache. For XDP-redirect workload with 100G mlx5 driver (that use page_pool) redirecting xdp_frame packets into a veth, that does XDP_PASS to create an SKB from the xdp_frame, which then cannot return the page to the page_pool. Performance results under GitHub xdp-project[1]: [1] https://github.com/xdp-project/xdp-project/blob/master/areas/mem/page_pool06_alloc_pages_bulk.org Mel: The patch "net: page_pool: convert to use alloc_pages_bulk_array variant" was squashed with this patch. From the test page, the array variant was superior with one of the test results as follows. Kernel XDP stats CPU pps Delta Baseline XDP-RX CPU total 3,771,046 n/a List XDP-RX CPU total 3,940,242 +4.49% Array XDP-RX CPU total 4,249,224 +12.68% Link: https://lkml.kernel.org/r/20210325114228.27719-10-mgorman@techsingularity.net Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Reviewed-by: Alexander Lobakin <alobakin@pm.me> Cc: Alexander Duyck <alexander.duyck@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-04-30 11:20:43 -07:00
..
bpf_sk_storage.c
datagram.c
datagram.h
dev.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-04-26 12:00:00 -07:00
dev_addr_lists.c
dev_ioctl.c
devlink.c	devlink: Extend SF port attributes to have external attribute	2021-04-24 00:58:53 -07:00
drop_monitor.c
dst.c
dst_cache.c
failover.c
fib_notifier.c
fib_rules.c
filter.c
flow_dissector.c
flow_offload.c
gen_estimator.c
gen_stats.c
gro_cells.c
hwbm.c
link_watch.c
lwt_bpf.c
lwtunnel.c
Makefile	net: selftest: fix build issue if INET is disabled	2021-04-28 14:06:45 -07:00
neighbour.c	neighbour: Prevent Race condition in neighbour subsytem	2021-04-21 14:47:43 -07:00
net-procfs.c
net-sysfs.c
net-sysfs.h
net-traces.c
net_namespace.c
netclassid_cgroup.c
netevent.c
netpoll.c
netprio_cgroup.c
page_pool.c	net: page_pool: use alloc_pages_bulk in refill code path	2021-04-30 11:20:43 -07:00
pktgen.c
ptp_classifier.c
request_sock.c
rtnetlink.c
scm.c
secure_seq.c
selftests.c
skbuff.c	Networking changes for 5.13.	2021-04-29 11:57:23 -07:00
skmsg.c
sock.c	net: sock: remove the unnecessary check in proto_register	2021-04-23 13:10:03 -07:00
sock_diag.c
sock_map.c
sock_reuseport.c
stream.c
sysctl_net_core.c
timestamping.c
tso.c
utils.c
xdp.c