Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:
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#vi /etc/sysctl.conf
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; M, X& c! h: A3 P# 憭扳獢inode敹怠
( l$ a* j6 e) l$ H# x* X9 |fs.file-max = 2097152
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! r, n& y2 L q: Y# B. V9 `6 g# 頛撠鈭斗
3 }( B( q3 p! S7 o0 nvm.swappiness = 10$ U8 M: j* g6 F6 H
vm.dirty_ratio = 60
* N% m$ a- q# H& d& svm.dirty_background_ratio = 27 _( H, q3 Z# b0 @9 v2 n
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### 銝祉蝬脰楝摰券賊 #### E8 n% V$ r0 t" L- v
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# 鋡怠(passive)TCP亦SYNACKs甈⊥# a; R4 i2 L; ?: M J
net.ipv4.tcp_synack_retries = 2* |# V% K' w. | {" b
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$ k! _- Q; t8 x2 w. V, A! ^# 閮望祆蝬脰楝仿蝭; F( S: X+ B. x+ h. E
net.ipv4.ip_local_port_range = 2000 65535: T/ h v3 ?9 r) L" D
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; A$ s2 X6 C% s1 O! X# 貿CP Time-Wait靽霅
% D$ y$ b+ ^! E2 N3 Y, Anet.ipv4.tcp_rfc1337 = 1, H! W0 g8 m3 R$ j" D' x
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# 雿撠 tcp_fin_timeout connection 閮剖
, I6 w& s3 n$ a \net.ipv4.tcp_fin_timeout = 154 Z' d$ H1 s2 x' `: F i
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# 雿蝺摮瘣餅閮剖; s6 W, ~9 {3 J/ Z3 U* q: B4 R. Y
net.ipv4.tcp_keepalive_time = 300
' a: v/ s* _/ Q) m- G' F& w3 Jnet.ipv4.tcp_keepalive_probes = 5
9 o+ o) m7 ~ w8 V5 m7 `" g/ _" lnet.ipv4.tcp_keepalive_intvl = 15
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, W* K% I' _* Q |: h6 s### 隤踵渡雯頝舀 ###
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. C% e) }+ k4 l2 R' Z) q. v# 閮剔Socket交嗥楨摮) ?8 z3 H1 m- [) N/ W# i
net.core.rmem_default = 31457280# C. ~7 L) A, s4 l2 X# N# w% M
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# 憭抒Socket交嗥楨摮
2 k* P' X5 [8 w Qnet.core.rmem_max = 12582912. ?4 L! N" i- ^( w+ d$ b( o
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# 閮剔Socket喲蝺拙
6 W1 N/ O4 H9 U2 wnet.core.wmem_default = 31457280$ C8 `3 Z2 C0 j; _' M- P
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- j4 a1 q# h# ]$ k. [* j# 憭抒Socket喲蝺拙/ w: U8 p e. u6 ~1 q0 n
net.core.wmem_max = 12582912% S. {0 m) U- t8 S Z8 j
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% j4 E" V; `" z9 l/ ^ ]$ c8 O# 憭抒雯頝舫交# }8 G1 ~4 _) B
net.core.somaxconn = 4096( R) s4 Z! q' R3 r8 [
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# 憭抒雯頝舫亦backlog
" ~" V3 L8 c( Z3 x' i" ynet.core.netdev_max_backlog = 65536
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% v8 r& M, M& J# 憭扯園蝺拙憭折
: K6 n7 T3 A+ u& Bnet.core.optmem_max = 25165824
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# Increase the maximum total buffer-space allocatable憭批臬蝺拙蝛粹憭抒蜇
8 N( n9 ]; e: I; s; w+ M# This is measured in units of pages (4096 bytes)$ I/ `8 G: z- n( {
net.ipv4.tcp_mem = 65536 131072 2621445 J8 l9 w# B/ C
net.ipv4.udp_mem = 65536 131072 262144
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n& S0 c7 D2 o# 憭扯蝺拙臬蝛粹
( Y: c n8 J" `) j1 u8 L' o K0 jnet.ipv4.tcp_rmem = 8192 87380 16777216
2 q- |7 }3 W" v/ I* c& jnet.ipv4.udp_rmem_min = 16384 H/ w! d3 `! s8 F3 V) i0 T
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# 憭批神亦楨摮臬蝛粹
1 D, r" U- h9 o% k5 K6 I7 unet.ipv4.tcp_wmem = 8192 65536 16777216
2 S% K. [; R9 {+ @/ Knet.ipv4.udp_wmem_min = 16384
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0 ?+ R, Q, f8 p, j5 H# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅0 v. _' o( c" e( _7 P
net.ipv4.tcp_max_tw_buckets = 1440000. T& I3 j; ^7 f- F% |: j t! p
net.ipv4.tcp_tw_recycle = 1
1 J9 i% M: R/ H) d, Q; P6 pnet.ipv4.tcp_tw_reuse = 15 n) x' V; J% _- B9 S
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摮瑼隞亦- e6 G' X% ~& U
#sysctl -p 頛亙歇霈1 i: i" H2 r" t2 V8 e
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https://easyengine.io/tutorials/linux/sysctl-conf/: R, t6 ?: S; @ e t5 O
摰ｇ砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0 6 S* b1 ^9 ^& S* H7 b% d
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潸” 2017-8-28 11:01:58
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