Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:+ K- D( W: F5 j: u4 I7 m
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#vi /etc/sysctl.conf
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6 k, d# }3 F) _+ R& o# 憭扳獢inode敹怠9 p2 j K8 `8 E
fs.file-max = 2097152
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# 頛撠鈭斗
$ E7 f4 Q6 X; ]4 V# @9 a$ z/ R- Hvm.swappiness = 10" e! o1 ~- `( }8 Z1 J( y$ T1 m. U [
vm.dirty_ratio = 60 n1 [4 d& v1 W- s1 N
vm.dirty_background_ratio = 2* M& r$ g* B) ? |, ]" Z
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4 P5 h& l) T, V& y1 J5 U* B+ i### 銝祉蝬脰楝摰券賊 ###
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, t( X0 e7 o7 d9 a$ _2 ^% x; O. _# 鋡怠(passive)TCP亦SYNACKs甈⊥$ [# k7 N( z3 j, p% S9 L& v
net.ipv4.tcp_synack_retries = 2; ]) A) W f2 s, \0 J2 `
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$ L p8 ~ ]! l/ k; t3 x; \# 閮望祆蝬脰楝仿蝭
# M8 H7 U& p$ D jnet.ipv4.ip_local_port_range = 2000 65535" X# j) L: l6 f4 h$ e2 x
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4 s7 F3 O* `6 o+ J: U# 貿CP Time-Wait靽霅# z6 J2 S0 M" {$ x& \
net.ipv4.tcp_rfc1337 = 1
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( [5 V9 {+ k% m8 o) Y+ T$ B$ i# 雿撠 tcp_fin_timeout connection 閮剖
' X' _. ^6 e7 i; w6 u( anet.ipv4.tcp_fin_timeout = 15
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# 雿蝺摮瘣餅閮剖
+ y; J( ?' R2 X! Pnet.ipv4.tcp_keepalive_time = 300
8 [" A8 l9 ~, B, enet.ipv4.tcp_keepalive_probes = 5
/ P& ^% F- H/ q* H! N+ F& `net.ipv4.tcp_keepalive_intvl = 15
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### 隤踵渡雯頝舀 ###
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# 閮剔Socket交嗥楨摮 `. \7 R/ d0 c6 c" W
net.core.rmem_default = 31457280
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F" p! t8 x4 |: a3 b: q9 l6 \, N0 h# 憭抒Socket交嗥楨摮" r' ]5 [2 T* @* C5 ~
net.core.rmem_max = 12582912
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1 A6 N0 y% T2 A& O+ u% u" ~# 閮剔Socket喲蝺拙, j3 z& U! l* p4 ~5 Q0 T I- b4 }! }
net.core.wmem_default = 31457280# t5 R) z. r. C/ i3 l, q$ ~; j
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# 憭抒Socket喲蝺拙7 a0 I! |) b2 z' a' y
net.core.wmem_max = 12582912
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# 憭抒雯頝舫交7 P9 f( M5 R; y( G! s4 c0 ] O& w
net.core.somaxconn = 4096
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, ]* b8 K0 y" f" k2 k6 ~/ V# 憭抒雯頝舫亦backlog" V+ V* q2 d; k( T+ k0 R
net.core.netdev_max_backlog = 655360 a& z, D8 d4 u+ S( |+ }
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# 憭扯園蝺拙憭折! {5 k7 B8 ]+ [" Z* F( g
net.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
$ L2 H! M, h+ w6 X# This is measured in units of pages (4096 bytes)
1 S4 D/ H) l _3 }( u* f2 c. Anet.ipv4.tcp_mem = 65536 131072 262144, y' I5 _) B" D1 i, q6 i
net.ipv4.udp_mem = 65536 131072 262144
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# 憭扯蝺拙臬蝛粹5 [- f7 i; c. \ B
net.ipv4.tcp_rmem = 8192 87380 16777216. v+ a' w5 n5 k
net.ipv4.udp_rmem_min = 16384( X6 Z1 ? D) D" X, f
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" c0 _8 h$ {) b" p0 ^# 憭批神亦楨摮臬蝛粹% x! ~9 A7 F( s$ k( l
net.ipv4.tcp_wmem = 8192 65536 167772163 l6 B+ G- V* `" `
net.ipv4.udp_wmem_min = 16384' n- g& F) L# t+ o5 L: E+ Y
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# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅3 ]/ W' L V# i. l" W. e$ A
net.ipv4.tcp_max_tw_buckets = 1440000, Q0 |! f2 `- R- k
net.ipv4.tcp_tw_recycle = 1
" N; B, I7 C: e P) {0 Lnet.ipv4.tcp_tw_reuse = 1
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摮瑼隞亦
& ~6 Z& d1 ~& f, Y; d& ~9 i# |#sysctl -p 頛亙歇霈9 P! F& j7 B4 L) G, g2 @
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https://easyengine.io/tutorials/linux/sysctl-conf/3 \* ^+ B5 U1 M7 s+ Z
摰ｇ砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0 1 `2 ^4 g E" @4 U. S8 L
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潸” 2017-8-28 11:01:58
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