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[linux隞也 Linux 蝖祇雿喳隤踵 ---- 敺株矽sysctl.conf

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2017-8-28 11:01:58 | 芰閰脖 撣 |摨閬 |梯璅∪
Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:7 N, J: J1 d! p0 u8 F, Z% B* y

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#vi /etc/sysctl.conf; }0 d* {1 l9 y. D  b
### 寥脩頂蝯梯園蝞∠ ###9 t+ A+ k% {; F) Q# o4 n, l; R1 e
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4 {; B% P' I! I; u# 憭扳獢inode敹怠. ]$ J  B; U" i5 Y% a
fs.file-max = 2097152+ ?7 [+ h+ D5 K2 W; }

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# 頛撠鈭斗, }" ^4 k0 [5 f. X! {0 F, O3 b
vm.swappiness = 10
) o6 Z+ z- {5 P; F0 @vm.dirty_ratio = 60; H2 Z/ `4 h$ e8 K( C3 o+ J
vm.dirty_background_ratio = 2
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" l6 M$ x- Y8 }0 k0 L$ l; l### 銝祉蝬脰楝摰券賊 ###
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! W. t" n9 p7 `) s; _9 n5 E* N# 鋡怠(passive)TCP亦SYNACKs甈⊥
; d& H/ {$ Z9 x( \net.ipv4.tcp_synack_retries = 25 I  }( ], v! U1 w7 |% B
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" [, E- f8 O# C#  閮望祆蝬脰楝仿蝭
3 l' u+ s$ m& `" {net.ipv4.ip_local_port_range = 2000 65535" M: D8 i$ f# F. n
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# 貿CP Time-Wait靽霅# w* p# j" q5 ~0 G- h' S7 b1 M
net.ipv4.tcp_rfc1337 = 1- l' X& w% F( Q$ T# ~
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) z/ O4 H3 |3 N# 雿撠 tcp_fin_timeout connection 閮剖
( C- Z4 X$ c# K+ {3 e: hnet.ipv4.tcp_fin_timeout = 15
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# 雿蝺摮瘣餅閮剖' V, t; j* E* i% C6 o* `( U& q) O" b" v
net.ipv4.tcp_keepalive_time = 300& s2 M1 r6 K4 t
net.ipv4.tcp_keepalive_probes = 5' j$ s' ?$ D  S0 E/ ]4 @( @" J
net.ipv4.tcp_keepalive_intvl = 15- N7 k( n2 E, a3 p; x0 Q% S

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### 隤踵渡雯頝舀 ###
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# 閮剔Socket交嗥楨摮: c7 }& O8 p/ m- g; G. c
net.core.rmem_default = 31457280
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% f4 k) V1 ]7 Q$ W- _% Y4 U# 憭抒Socket交嗥楨摮
7 n2 H. o! ~7 b- N. x8 V" anet.core.rmem_max = 12582912
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# 閮剔Socket喲蝺拙; k4 c( ?. I- U0 T2 F% c7 o
net.core.wmem_default = 31457280# u0 I* c. ]+ q2 b4 p
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& q2 a# |: T1 R5 }( o3 \) C$ C# 憭抒Socket喲蝺拙0 S! [8 c. @6 l3 q
net.core.wmem_max = 125829128 |7 v: {4 M7 T$ J
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# 憭抒雯頝舫交
/ i/ e: w' t# m, r1 Mnet.core.somaxconn = 4096
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+ o. ?0 C1 O: U* L% S) E2 R% [; z8 }# 憭抒雯頝舫亦backlog
0 u5 ]9 V( l& m- O1 s  n0 I$ Dnet.core.netdev_max_backlog = 65536
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# 憭扯園蝺拙憭折
; r6 Q  H7 f0 }5 W; Q( k' ?& Cnet.core.optmem_max = 251658243 h+ \$ X1 g! M1 M, s. n

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0 e9 ^( {* }, A+ N+ s6 Q# Increase the maximum total buffer-space allocatable憭批臬蝺拙蝛粹憭抒蜇6 Q9 q/ o6 x. g
# This is measured in units of pages (4096 bytes)( a3 e+ y0 i5 }' t! }
net.ipv4.tcp_mem = 65536 131072 2621448 L' A3 `. q  a$ f2 l( q( h3 s. e0 a
net.ipv4.udp_mem = 65536 131072 262144
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+ @5 d' k% N: l  }+ W6 G. [, Q# 憭扯蝺拙臬蝛粹
9 V- J' F2 m& b3 B8 y- ?net.ipv4.tcp_rmem = 8192 87380 16777216
5 P- \% W4 s5 r& Inet.ipv4.udp_rmem_min = 16384
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# 憭批神亦楨摮臬蝛粹
7 [+ H$ \# [3 @2 S' N! Z) onet.ipv4.tcp_wmem = 8192 65536 16777216" v/ h- t6 d/ W- s3 P: _: G+ T  T8 f
net.ipv4.udp_wmem_min = 163844 e( r& ^5 R; j1 h" c1 D# I
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' s0 n) O4 E  W/ ~# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅
# ?  a7 [4 ^+ m6 v( M; \4 Pnet.ipv4.tcp_max_tw_buckets = 1440000! `6 K7 a" v; h" _$ G# E' `( L! w- n
net.ipv4.tcp_tw_recycle = 1. n2 q2 `% W# b8 @$ S$ W
net.ipv4.tcp_tw_reuse = 1( M0 ]! A* M/ q0 R0 c; L
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摮瑼隞亦8 {8 B) n9 |7 S7 {
#sysctl -p 頛亙歇霈
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https://easyengine.io/tutorials/linux/sysctl-conf/
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摰g砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0

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