Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:. \3 L( k, r0 U
+ i/ g7 R8 [* ~3 H/ O" x#vi /etc/sysctl.conf* ^; T- u+ E) {* [
### 寥脩頂蝯梯園蝞∠ ###
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# 憭扳獢inode敹怠2 G1 h8 d2 i0 f
fs.file-max = 2097152) G" k- \5 ^- V& j
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$ Y/ M } g. Y% U* E! n# 頛撠鈭斗' ?1 ?- z' |8 ]9 |& k, o
vm.swappiness = 10
& d$ ^% L' i/ w) ~0 S# ~3 Z$ O) fvm.dirty_ratio = 60# L( j3 Z7 j5 w5 V/ K0 r
vm.dirty_background_ratio = 29 g; A# d6 `1 }0 J; ?
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& I0 E& V' |$ ~% u+ v$ m3 T### 銝祉蝬脰楝摰券賊 ###$ u! X& X# X; x$ [( I i' Q) U: d
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# 鋡怠(passive)TCP亦SYNACKs甈⊥$ e- }, g4 }6 F2 w! V
net.ipv4.tcp_synack_retries = 2
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+ f/ B: N# N$ M/ J! s# 閮望祆蝬脰楝仿蝭
$ r# A: M6 a) s' p! l1 D' _. Enet.ipv4.ip_local_port_range = 2000 65535
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8 E. c+ j3 r# W) i# 貿CP Time-Wait靽霅
( n) G5 I! l4 W' k# fnet.ipv4.tcp_rfc1337 = 18 x V5 j1 _( D/ I
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# 雿撠 tcp_fin_timeout connection 閮剖* _/ {$ b2 H. O1 U1 ^0 w
net.ipv4.tcp_fin_timeout = 15
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$ j# y" ]& o( c# g5 | x# 雿蝺摮瘣餅閮剖, Q$ ]3 U+ f6 X- ]7 B# s
net.ipv4.tcp_keepalive_time = 300
8 E- T; t& t# }& anet.ipv4.tcp_keepalive_probes = 57 y8 t4 P# i* u I+ L: X- M8 O
net.ipv4.tcp_keepalive_intvl = 152 M% t' ^1 v$ x# I) t
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2 c/ y3 B' j( W% Z. k### 隤踵渡雯頝舀 ###. c* `0 J$ t7 s" B6 s; b
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5 v. z; ^5 K% m; t( z! U# 閮剔Socket交嗥楨摮
; x3 U% n4 r. X& Z7 q) _" ^net.core.rmem_default = 31457280
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# 憭抒Socket交嗥楨摮
& v! k/ b- V& x5 qnet.core.rmem_max = 125829128 j; m. t, N( M+ ~% W
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4 ]4 m: h- k# G2 `( P# 閮剔Socket喲蝺拙, F3 c8 e1 R( v% ~
net.core.wmem_default = 31457280' ]& e# a% t5 D2 K
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& l! r; U- ?5 g3 U# X# G# 憭抒Socket喲蝺拙
3 N$ I5 X9 N% d- ?; q- Y( u9 a8 inet.core.wmem_max = 12582912
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# 憭抒雯頝舫交
. u# t6 T7 O. Bnet.core.somaxconn = 4096 L6 |& M( l# W$ x- _# J6 p) R9 M
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* w# Q, S1 v; e$ u# 憭抒雯頝舫亦backlog1 }- d* y7 O' ^) p" G2 s) a7 C- A, `
net.core.netdev_max_backlog = 65536
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# 憭扯園蝺拙憭折 M5 x9 r6 g) Q) t
net.core.optmem_max = 25165824$ ?4 f1 ~! u4 L& X3 y' \; m+ Z [6 S
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# Increase the maximum total buffer-space allocatable憭批臬蝺拙蝛粹憭抒蜇! {$ c# G- ?+ U; t' x
# This is measured in units of pages (4096 bytes): c+ M5 i. ]; Q5 @2 x/ {6 B
net.ipv4.tcp_mem = 65536 131072 262144
1 f% C- r) E9 k8 ]& o, mnet.ipv4.udp_mem = 65536 131072 262144
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# 憭扯蝺拙臬蝛粹
2 ~+ F5 G9 [) T% |% Q" C: Nnet.ipv4.tcp_rmem = 8192 87380 16777216
' n. v0 L/ f+ b/ j& j5 h: O; _% p3 P% ?net.ipv4.udp_rmem_min = 163842 e% n* c, M# [/ j" U9 u8 C! d
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. N9 E8 C1 a0 ]! Q, I5 r& _: p# 憭批神亦楨摮臬蝛粹
- U/ [ D6 _+ f7 W( e& Onet.ipv4.tcp_wmem = 8192 65536 16777216
. E5 I# o" I$ h5 gnet.ipv4.udp_wmem_min = 163844 ^6 J" E- F8 w& p- Z6 t4 ^! d
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# i" s- T3 f) P$ ~, K9 w7 ]# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅4 }8 A- u! p2 G/ P: c7 Y4 x2 x6 e/ p
net.ipv4.tcp_max_tw_buckets = 1440000
# a, I& ^% n5 i% m# }0 m4 J# m* fnet.ipv4.tcp_tw_recycle = 1, z/ P( @' c; f3 _( X
net.ipv4.tcp_tw_reuse = 1* w l Z5 W- D$ @- p( E
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摮瑼隞亦
! N {5 S3 E" V1 s2 p#sysctl -p 頛亙歇霈0 L, L; @: s( o' a
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9 R+ B- W0 O. W, D2 L! A1 v! a6 shttps://easyengine.io/tutorials/linux/sysctl-conf/
5 }) s8 K- J+ F. {/ z摰ｇ砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0
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潸” 2017-8-28 11:01:58
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