From: Eric Dumazet <eric.dumazet@gmail•com>
To: "David S . Miller" <davem@davemloft•net>,
Jakub Kicinski <kuba@kernel•org>
Cc: David Ahern <dsahern@kernel•org>, netdev <netdev@vger•kernel.org>,
Eric Dumazet <edumazet@google•com>,
Eric Dumazet <eric.dumazet@gmail•com>
Subject: [PATCH v2 net 0/2] ipv4: avoid pathological hash tables
Date: Wed, 19 Jan 2022 02:04:11 -0800 [thread overview]
Message-ID: <20220119100413.4077866-1-eric.dumazet@gmail.com> (raw)
From: Eric Dumazet <edumazet@google•com>
This series speeds up netns dismantles on hosts
having many active netns, by making sure two hash tables
used for IPV4 fib contains uniformly spread items.
v2: changed second patch to add fib_info_laddrhash_bucket()
for consistency (David Ahern suggestion).
Eric Dumazet (2):
ipv4: avoid quadratic behavior in netns dismantle
ipv4: add net_hash_mix() dispersion to fib_info_laddrhash keys
net/ipv4/fib_semantics.c | 65 ++++++++++++++++++++--------------------
1 file changed, 32 insertions(+), 33 deletions(-)
--
2.34.1.703.g22d0c6ccf7-goog
next reply other threads:[~2022-01-19 10:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-19 10:04 Eric Dumazet [this message]
2022-01-19 10:04 ` [PATCH v2 net 1/2] ipv4: avoid quadratic behavior in netns dismantle Eric Dumazet
2022-01-19 10:04 ` [PATCH v2 net 2/2] ipv4: add net_hash_mix() dispersion to fib_info_laddrhash keys Eric Dumazet
2022-01-19 15:40 ` David Ahern
2022-01-19 18:24 ` [PATCH v2 net 0/2] ipv4: avoid pathological hash tables Jakub Kicinski
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