Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:
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3 p) r' G$ G5 h$ ?% X) L& B#vi /etc/sysctl.conf
+ T. k2 x! W( \### 寥脩頂蝯梯園蝞∠ ###
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# 憭扳獢inode敹怠
$ u2 x. _/ N8 ]+ ?3 g- Cfs.file-max = 2097152
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) e+ _2 W/ t u( B* t7 q* o# 頛撠鈭斗
8 V+ k! e% j; M, J+ L1 i hvm.swappiness = 10
# a& A1 V( k# s1 [0 N* y/ ]0 Qvm.dirty_ratio = 60
9 C3 b7 Q; [" d9 T5 e3 ?! ]/ uvm.dirty_background_ratio = 2
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/ X7 t2 J, u( q8 F### 銝祉蝬脰楝摰券賊 ###* Z6 s3 w) d E& G& n- A* a
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# 鋡怠(passive)TCP亦SYNACKs甈⊥6 Y7 {2 B. Q' k g
net.ipv4.tcp_synack_retries = 2) J+ f- q" X5 \) a p
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. b6 {8 ?$ A8 B7 H# 閮望祆蝬脰楝仿蝭
; W+ h4 D( [( G. s( h3 ~; Ynet.ipv4.ip_local_port_range = 2000 65535
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2 n% u& x1 W# r6 }$ x# 貿CP Time-Wait靽霅
' O- K! D$ F2 Onet.ipv4.tcp_rfc1337 = 1! n+ @1 z3 P% k/ t8 \6 `
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# 雿撠 tcp_fin_timeout connection 閮剖
- e \* y- L/ {, ]4 h v6 Q rnet.ipv4.tcp_fin_timeout = 155 M1 [. k6 v$ b7 Y$ r0 ~+ a
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# 雿蝺摮瘣餅閮剖
2 u7 P2 ]$ p ^% U( H5 ^& m* xnet.ipv4.tcp_keepalive_time = 300
: E! a2 O' I/ y6 Q6 S7 znet.ipv4.tcp_keepalive_probes = 51 x5 q8 Q& j: P! g. A
net.ipv4.tcp_keepalive_intvl = 15
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E( {, l$ n4 F1 O6 Y### 隤踵渡雯頝舀 ###
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# 閮剔Socket交嗥楨摮: q8 j3 o7 E( e! ?$ r
net.core.rmem_default = 31457280
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# 憭抒Socket交嗥楨摮
8 o2 s7 |8 s; }4 [4 q6 b; onet.core.rmem_max = 12582912
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# 閮剔Socket喲蝺拙8 Z7 T; i7 K% w( z' q
net.core.wmem_default = 31457280' @+ r1 [; k7 X6 y
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# 憭抒Socket喲蝺拙
) i: G9 J6 l$ f qnet.core.wmem_max = 12582912
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5 m, R7 D/ T7 d; w9 y0 b# 憭抒雯頝舫交
4 [3 `) |0 x+ W8 T2 J) u' jnet.core.somaxconn = 4096; W5 {6 x) Z+ [: t# M* e
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3 x3 X, r' M& Z& V# 憭抒雯頝舫亦backlog
. b# R4 A8 Y7 v6 xnet.core.netdev_max_backlog = 65536; C5 k1 [) H. s/ s% u) N. Q
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: n- h5 l6 U" B/ U3 B# 憭扯園蝺拙憭折
2 s8 k% _- X1 i( }6 l0 o: ^. f( ~/ \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
. P* j0 d& e' K8 H% d8 U# This is measured in units of pages (4096 bytes)4 m- x! L- ?& J+ ^
net.ipv4.tcp_mem = 65536 131072 262144: o+ g ]' }: L5 [3 V2 Q
net.ipv4.udp_mem = 65536 131072 2621442 y5 ^( c# H$ S
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! P4 r& o( g5 Y8 H* n" R% B" T# 憭扯蝺拙臬蝛粹
! n" w5 I0 l; L' onet.ipv4.tcp_rmem = 8192 87380 16777216
+ X. f6 }* m9 B' S k! }net.ipv4.udp_rmem_min = 16384' x0 h+ r+ {+ }" ~% ~. K# l3 |
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% X" ^' i% W3 i% T. T, s! M# 憭批神亦楨摮臬蝛粹7 D1 F5 @6 D M6 N1 }' j6 j
net.ipv4.tcp_wmem = 8192 65536 16777216" @" F7 |3 V2 ?) @( h6 i
net.ipv4.udp_wmem_min = 16384+ F8 I( Y' h. h' s" G6 M
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# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅
# G+ D$ J, z' I5 C- s* [/ mnet.ipv4.tcp_max_tw_buckets = 14400006 O* b1 s) [( O( s$ K
net.ipv4.tcp_tw_recycle = 1# }6 D+ m5 g$ s- t6 M' t) R
net.ipv4.tcp_tw_reuse = 1
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摮瑼隞亦5 x' D+ g9 Z, ~' j- ~$ P, J. F
#sysctl -p 頛亙歇霈
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https://easyengine.io/tutorials/linux/sysctl-conf/
4 B! w/ a* ]" N+ q摰ｇ砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0 + [% n' V1 b! X" N+ M+ K- f
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潸” 2017-8-28 11:01:58
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