| From: |
| Eric Dumazet <edumazet@google.com> |
| To: |
| "David S. Miller" <davem@davemloft.net> |
| Subject: |
| [PATCH net-next 0/6] tcp: better handling of memory pressure |
| Date: |
| Fri, 15 May 2015 07:53:52 -0700 |
| Message-ID: |
| <1431701638-24451-1-git-send-email-edumazet@google.com> |
| Cc: |
| netdev <netdev@vger.kernel.org>, Jason Baron <jbaron@akamai.com>, Neal Cardwell <ncardwell@google.com>, Yuchung Cheng <ycheng@google.com>, Eric Dumazet <eric.dumazet@gmail.com>, Eric Dumazet <edumazet@google.com> |
| Archive‑link: | |
Article |
When testing commit 790ba4566c1a ("tcp: set SOCK_NOSPACE under memory
pressure") using edge triggered epoll applications, I found various
issues under memory pressure and thousands of active sockets.
This patch series is a first round to solve these issues, in send
and receive paths. There are probably other fixes needed, but
with this series, my tests now all succeed.
Eric Dumazet (6):
net: fix sk_mem_reclaim_partial()
tcp: rename sk_forced_wmem_schedule() to sk_forced_mem_schedule()
tcp: introduce tcp_under_memory_pressure()
tcp: fix behavior for epoll edge trigger
tcp: allow one skb to be received per socket under memory pressure
tcp: halves tcp_mem[] limits
include/net/sock.h | 6 +++---
include/net/tcp.h | 10 ++++++++++
net/core/sock.c | 9 +++++----
net/ipv4/tcp.c | 24 ++++++++++++++++++------
net/ipv4/tcp_input.c | 18 ++++++++++--------
net/ipv4/tcp_output.c | 10 ++++++----
net/ipv4/tcp_timer.c | 2 +-
7 files changed, 53 insertions(+), 26 deletions(-)
--
2.2.0.rc0.207.ga3a616c
