From: Jason Xing <kerneljasonxing@gmail•com>
To: davem@davemloft•net, edumazet@google•com, kuba@kernel•org,
pabeni@redhat•com, bjorn@kernel•org, magnus.karlsson@intel•com,
maciej.fijalkowski@intel•com, jonathan.lemon@gmail•com,
sdf@fomichev•me, ast@kernel•org, daniel@iogearbox•net,
hawk@kernel•org, john.fastabend@gmail•com, horms@kernel•org,
andrew+netdev@lunn•ch
Cc: bpf@vger•kernel.org, netdev@vger•kernel.org,
Jason Xing <kernelxing@tencent•com>
Subject: [PATCH net-next v2 0/2] xsk: minor optimizations around locks
Date: Thu, 30 Oct 2025 08:06:44 +0800 [thread overview]
Message-ID: <20251030000646.18859-1-kerneljasonxing@gmail.com> (raw)
From: Jason Xing <kernelxing@tencent•com>
Two optimizations regarding xsk_tx_list_lock and cq_lock can yield a
performance increase because of avoiding disabling and enabling
interrupts frequently.
---
V2
Link: https://lore.kernel.org/all/20251025065310.5676-1-kerneljasonxing@gmail.com/
1. abandon applying lockless idea around cached_prod because the case as
Jakub pointed out can cause the pool messy.
2. add a new patch to handle xsk_tx_list_lock.
Jason Xing (2):
xsk: do not enable/disable irq when grabbing/releasing
xsk_tx_list_lock
xsk: use a smaller new lock for shared pool case
include/net/xsk_buff_pool.h | 13 +++++++++----
net/xdp/xsk.c | 15 ++++++---------
net/xdp/xsk_buff_pool.c | 15 ++++++---------
3 files changed, 21 insertions(+), 22 deletions(-)
--
2.41.3
next reply other threads:[~2025-10-30 0:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-30 0:06 Jason Xing [this message]
2025-10-30 0:06 ` [PATCH net-next v2 1/2] xsk: do not enable/disable irq when grabbing/releasing xsk_tx_list_lock Jason Xing
2025-11-03 14:42 ` Maciej Fijalkowski
2025-10-30 0:06 ` [PATCH net-next v2 2/2] xsk: use a smaller new lock for shared pool case Jason Xing
2025-11-03 14:58 ` Maciej Fijalkowski
2025-11-03 23:26 ` Jason Xing
2025-11-04 15:20 ` [PATCH net-next v2 0/2] xsk: minor optimizations around locks patchwork-bot+netdevbpf
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