Commit b6178585 authored by Eric Dumazet's avatar Eric Dumazet Committed by Jakub Kicinski
Browse files

net: increase skb_defer_max default to 128 



skb_defer_max value is very conservative, and can be increased
to avoid too many calls to kick_defer_list_purge().

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Reviewed-by: default avatarKuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
Reviewed-by: default avatarJason Xing <kerneljasonxing@gmail.com>
Link: https://patch.msgid.link/20251106202935.1776179-4-edumazet@google.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent e20dfbad

Documentation/admin-guide/sysctl/net.rst

+2 −2
Original line number Diff line number Diff line
@@ -355,9 +355,9 @@ skb_defer_max 
-------------



Max size (in skbs) of the per-cpu list of skbs being freed

by the cpu which allocated them. Used by TCP stack so far.

by the cpu which allocated them.



Default: 64

Default: 128



optmem_max

----------

net/core/hotdata.c

+1 −1
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ struct net_hotdata net_hotdata __cacheline_aligned = { 
	.dev_tx_weight = 64,

	.dev_rx_weight = 64,

	.sysctl_max_skb_frags = MAX_SKB_FRAGS,

	.sysctl_skb_defer_max = 64,

	.sysctl_skb_defer_max = 128,

	.sysctl_mem_pcpu_rsv = SK_MEMORY_PCPU_RESERVE

};

EXPORT_SYMBOL(net_hotdata);