Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:7 e: O( Z! v1 t* x
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#vi /etc/sysctl.conf
2 p8 I0 F) r* h/ Z$ M; I; F### 寥脩頂蝯梯園蝞∠ ###
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# 憭扳獢inode敹怠/ y* ?" d0 P; q+ h9 a1 K& N
fs.file-max = 2097152
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# 頛撠鈭斗$ h* d9 F( s! t5 }6 e' I2 n
vm.swappiness = 106 y }" g7 a" q" B
vm.dirty_ratio = 60
6 x0 s8 x9 `( z. j+ Z( X0 H4 vvm.dirty_background_ratio = 27 C$ W- L0 a7 f" Q$ f; }1 v, i
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4 P5 w2 V1 s- k, a- H. A/ v### 銝祉蝬脰楝摰券賊 ###. r# L+ Z. P1 a- G
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# 鋡怠(passive)TCP亦SYNACKs甈⊥, B" R u6 [$ v' _
net.ipv4.tcp_synack_retries = 2% X+ h/ l% t/ F3 C. F. ?
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# 閮望祆蝬脰楝仿蝭
8 L/ J+ C, Q1 b9 B8 q1 g6 ]* fnet.ipv4.ip_local_port_range = 2000 65535) j& q) F; ] B/ k0 [+ ]; C& h
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5 h* k7 i: |; X, G' N$ ]& P9 w# 貿CP Time-Wait靽霅
& U; d( B1 i+ ?+ K, |" Anet.ipv4.tcp_rfc1337 = 1
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# 雿撠 tcp_fin_timeout connection 閮剖
0 ]9 C7 K% Y" s2 l9 d1 O: A2 hnet.ipv4.tcp_fin_timeout = 15" Y; Q2 D, j! S; i2 J5 T, F8 O! B
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% u; b+ r: a8 Y$ a& [ {' {: ?# 雿蝺摮瘣餅閮剖 q$ p! O' L9 N% |$ g% Q
net.ipv4.tcp_keepalive_time = 300- z9 y% d1 C9 k8 B9 m
net.ipv4.tcp_keepalive_probes = 5
0 h1 _/ ?$ V. \% S# }net.ipv4.tcp_keepalive_intvl = 15
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### 隤踵渡雯頝舀 ###
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+ Z$ I" [/ @$ M! r5 d6 w7 w6 t# 閮剔Socket交嗥楨摮9 L$ r$ a* v* S4 `. T+ s
net.core.rmem_default = 31457280
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# 憭抒Socket交嗥楨摮. Y3 w( L# P# N2 Z
net.core.rmem_max = 125829122 S' C8 Z( @: i7 W; m. w8 w& r
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# 閮剔Socket喲蝺拙
/ L! h2 D" b. |4 C$ |net.core.wmem_default = 31457280% f4 g6 J, z- T! L
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$ u9 g8 F0 I* J% x* \* v& y# 憭抒Socket喲蝺拙5 ?/ d- \; P5 M
net.core.wmem_max = 12582912$ c: o, v* x- p2 K2 A
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# 憭抒雯頝舫交
" ]6 g4 w% `( u- N5 anet.core.somaxconn = 4096
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# 憭抒雯頝舫亦backlog
l9 `, b- t8 X$ \) p' a/ Anet.core.netdev_max_backlog = 65536
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# 憭扯園蝺拙憭折2 @0 t' M, y& Q: H/ |" P
net.core.optmem_max = 25165824
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! u3 g2 @; R* t9 m: [% _# Increase the maximum total buffer-space allocatable憭批臬蝺拙蝛粹憭抒蜇
% Y: U2 ]& P& h2 @! {# This is measured in units of pages (4096 bytes)
9 g$ B5 I# Q C5 T% ]! {) nnet.ipv4.tcp_mem = 65536 131072 262144
% z! z1 r/ Q0 |4 n* }& o) A8 @8 j1 \net.ipv4.udp_mem = 65536 131072 2621444 h) B3 |( @3 f: \. R
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4 c1 J' u* Y1 q, C( Y' @* i# 憭扯蝺拙臬蝛粹
0 ], S- M3 r' F# {8 C0 o+ R( r% [net.ipv4.tcp_rmem = 8192 87380 16777216
$ a2 z9 @2 ~1 lnet.ipv4.udp_rmem_min = 16384
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# 憭批神亦楨摮臬蝛粹
' p d# V7 p; ?# c I2 C+ o" hnet.ipv4.tcp_wmem = 8192 65536 16777216
; q" g! }5 ^6 ^6 e/ {net.ipv4.udp_wmem_min = 16384
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. F) M$ W0 o# Z; U) N) i: a# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅! n1 z b- y/ F8 b
net.ipv4.tcp_max_tw_buckets = 1440000
( Y9 h+ W7 j2 hnet.ipv4.tcp_tw_recycle = 19 E. ]& t* o. ?! R2 v! j1 v
net.ipv4.tcp_tw_reuse = 1, m2 x" j- h1 p
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摮瑼隞亦. J. T. V; _/ `+ a# n
#sysctl -p 頛亙歇霈
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; F4 A u' p' D. ~, R7 I" shttps://easyengine.io/tutorials/linux/sysctl-conf/
; m L/ E7 k6 E/ U; m摰ｇ砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0 $ [; y; Z# j3 V$ b, N- h: c
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潸” 2017-8-28 11:01:58
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