Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:$ H( J2 E' }% N
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#vi /etc/sysctl.conf
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# 憭扳獢inode敹怠
; E* P" a8 j' H) M" V. Pfs.file-max = 2097152
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/ l3 H9 s/ e8 C$ l8 ?# W# 頛撠鈭斗
9 i$ x+ G3 w- m! |( @/ s tvm.swappiness = 10
: b5 b; H, ^+ r; C, p- Y, Svm.dirty_ratio = 60
: J0 h8 `( z. L2 Uvm.dirty_background_ratio = 29 x9 P c( H4 ?9 G0 D( v: h
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### 銝祉蝬脰楝摰券賊 ###
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# 鋡怠(passive)TCP亦SYNACKs甈⊥
' N# w! @( C+ H1 y# |8 [( J! ?7 unet.ipv4.tcp_synack_retries = 2- f! D4 o: u1 @" s6 V
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$ R- [" J+ p9 _! R8 R X; C- H# 閮望祆蝬脰楝仿蝭
: ], d# h' u X+ a7 H# }; {9 lnet.ipv4.ip_local_port_range = 2000 65535
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) g/ y$ K/ H! z1 x7 @( |+ p0 z# 貿CP Time-Wait靽霅
- L8 ~9 p; m0 J8 c" T. J1 F* F- Unet.ipv4.tcp_rfc1337 = 1
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# 雿撠 tcp_fin_timeout connection 閮剖3 X* e* p* X9 m* i
net.ipv4.tcp_fin_timeout = 15
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) H/ G0 J. \: M# 雿蝺摮瘣餅閮剖* j6 z5 t: T, X' p/ S" g7 o
net.ipv4.tcp_keepalive_time = 300! e, b7 }" Q# X, m
net.ipv4.tcp_keepalive_probes = 5
O- E. o8 O7 ~& L6 Y# W- @. Xnet.ipv4.tcp_keepalive_intvl = 15
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( g+ N; z5 t/ j+ k* l: F### 隤踵渡雯頝舀 ###
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. E! g; n7 v1 j5 A! y* Y# 閮剔Socket交嗥楨摮
U7 \4 E4 e) p% C! c! f5 Gnet.core.rmem_default = 31457280
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$ X: N {' q- n5 D) _5 n: x# 憭抒Socket交嗥楨摮" N4 F+ x; W# f: @/ c: W
net.core.rmem_max = 12582912; e& t1 ?$ p% Q* n p* P6 y j
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1 w: e4 ?$ u1 i# ~+ \$ @) E# 閮剔Socket喲蝺拙: l, D* Z" i2 e2 K
net.core.wmem_default = 31457280. X9 N; D" {( T1 |0 g+ V5 O* h0 l
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" O$ T* N/ d" F$ x# 憭抒Socket喲蝺拙, }! ]# ]( D* T6 e4 R( U
net.core.wmem_max = 12582912" m' J5 @, k( H6 C. e* b/ |
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# 憭抒雯頝舫交3 J( }$ e1 Y+ ^2 I
net.core.somaxconn = 4096
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# 憭抒雯頝舫亦backlog
9 J. g" V7 l5 s- u: e+ Rnet.core.netdev_max_backlog = 655360 E+ L- g$ C: p' I- Q; A
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# 憭扯園蝺拙憭折5 m/ ^8 a' y/ Y. J+ q4 l/ z9 E; A
net.core.optmem_max = 25165824
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' J: W ]/ B- o8 t# Increase the maximum total buffer-space allocatable憭批臬蝺拙蝛粹憭抒蜇
: j3 E; D2 ?0 V/ m+ H3 @& Y4 n: `# This is measured in units of pages (4096 bytes)
. g: \) m `2 y" Y! M }' |net.ipv4.tcp_mem = 65536 131072 262144 Q2 N* P' O& K
net.ipv4.udp_mem = 65536 131072 262144
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: e! A8 P& a+ N/ f# 憭扯蝺拙臬蝛粹
- k/ v m8 D7 U4 w3 r7 e; Anet.ipv4.tcp_rmem = 8192 87380 167772168 S J* ]! z5 Y3 j6 p
net.ipv4.udp_rmem_min = 16384
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# 憭批神亦楨摮臬蝛粹
. g9 `! i, `4 M; [; |net.ipv4.tcp_wmem = 8192 65536 16777216
" E x9 Y1 g7 [0 r) v T* Vnet.ipv4.udp_wmem_min = 16384
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# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅6 A2 s) d; t# Y+ v8 d4 `/ ]
net.ipv4.tcp_max_tw_buckets = 14400008 d. L; q4 t* M
net.ipv4.tcp_tw_recycle = 1
7 @, _: e# P( k! cnet.ipv4.tcp_tw_reuse = 1
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摮瑼隞亦. S5 Y- T- U) P! H3 C/ i S% x* C
#sysctl -p 頛亙歇霈2 Z" [) W2 H/ j6 m# R% X
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https://easyengine.io/tutorials/linux/sysctl-conf/
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潸” 2017-8-28 11:01:58
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