📄 mysql优化简明指南.mht
字号:
=C3=B7=B6=CE=A7=B5=C4=D2=BB=D6=D6=A3=BA=20
=
<BR><BR>Global=A3=BA=BD=ABmy.cnf=CE=C4=BC=FE=B8=B4=D6=C6=B5=BD=B7=FE=CE=F1=
=C6=F7=B5=C4/etc=C4=BF=C2=BC=CF=C2=A3=AC=D5=E2=CA=B9=B5=C3=C5=E4=D6=C3=CE=
=C4=BC=FE=D6=D0=B5=C4=B1=E4=C1=BF=D7=F7=D3=C3=D3=DA=C8=AB=BE=D6=A3=AC=BC=B4=
=B6=D4=CB=F9=D3=D0=B7=FE=CE=F1=C6=F7=C9=CF=B5=C4MySQL=CA=FD=BE=DD=BF=E2=B7=
=FE=CE=F1=C6=F7=D3=D0=D0=A7=A1=A3=20
=
<BR>Local=A3=BA=BD=ABmy.cnf=CE=C4=BC=FE=B8=B4=D6=C6=B5=BD[MYSQL-INSTALL-D=
IR]/var/=C4=BF=C2=BC=CF=C2=A3=AC=CA=B9=B5=C3my.cnf=D7=F7=D3=C3=D3=DA=CC=D8=
=B6=A8=B5=C4=B7=FE=CE=F1=C6=F7=A1=A3[MYSQL-INSTALL-DIR]=B1=ED=CA=BEMySQL=B0=
=B2=D7=B0=C4=BF=C2=BC=A1=A3=20
=
<BR>User=A3=BA=C4=E3=BF=C9=D2=D4=D4=D9=CF=DE=D6=C6=D7=F7=D3=C3=D3=DA=CC=D8=
=B6=A8=B5=C4=D3=C3=BB=A7=A3=AC=BD=ABmy.cnf=B8=B4=D6=C6=B5=BD=D3=C3=BB=A7=B5=
=C4=B8=F9=C4=BF=C2=BC=CF=C2=A1=A3=20
=
<BR>=BE=BF=BE=B9=C8=E7=BA=CE=C9=E8=D6=C3my.cnf=D6=D0=B5=C4=D5=E2=D0=A9=B1=
=E4=C1=BF=C4=D8=A3=BF=B8=FC=BD=F8=D2=BB=B2=BD=CB=B5=A3=AC=C4=E3=BF=C9=D2=D4=
=C9=E8=D6=C3=C4=C4=D2=BB=B8=F6=B1=E4=C1=BF=A1=A3=CB=E4=C8=BB=CB=F9=D3=C3=B1=
=E4=C1=BF=B6=D4MySQL=B7=FE=CE=F1=C6=F7=CF=E0=B6=D4=CD=A8=D3=C3=A3=AC=C3=BF=
=D2=BB=B8=F6=B1=E4=C1=BF=D3=EBMySQL=B5=C4=B5=C4=C4=B3=D0=A9=D7=E9=BC=FE=D3=
=D0=B8=FC=CC=D8=B6=A8=B5=C4=B9=D8=CF=B5=A1=A3=C8=E7=B1=E4=C1=BFmax_connec=
ts=B9=E9=D4=DAmysqld=C0=E0=B1=F0=CF=C2=A1=A3=D6=B4=D0=D0=CF=C2=C1=D0=C3=FC=
=C1=EE=BC=B4=BF=C9=D6=AA=B5=C0=A3=BA=20
=
<BR><BR><BR>-------------------------------------------------------------=
-------------------=20
<BR>%>/usr/local/mysql/libexec/mysqld --help=20
=
<BR>---------------------------------------------------------------------=
-----------=20
=
<BR><BR>=CB=FC=CF=D4=CA=BE=B4=F3=C1=BF=B5=C4=D1=A1=CF=EE=BC=B0=D3=EBmysql=
d=CF=E0=B9=D8=B5=C4=B1=E4=C1=BF=A1=A3=C4=E3=BF=C9=D2=D4=BA=DC=C8=DD=D2=D7=
=B5=D8=D4=DA=B8=C3=D0=D0=CE=C4=D7=D6=D6=AE=CF=C2=D5=D2=B3=F6=B1=E4=C1=BF=A3=
=BA=20
=
<BR><BR><BR>-------------------------------------------------------------=
-------------------=20
<BR>Possible variables for option --set-variable =
(-O)=20
are=20
=
<BR>---------------------------------------------------------------------=
-----------=20
=
<BR><BR>=C8=BB=BA=F3=C4=E3=BF=C9=D2=D4=C8=E7=CF=C2=C9=E8=D6=C3my.cnf=D6=D0=
=B5=C4=C4=C7=D0=A9=B1=E4=C1=BF=A3=BA=20
=
<BR><BR>-----------------------------------------------------------------=
---------------=20
<BR>set-variable =3D max_connections=3D100=20
=
<BR>---------------------------------------------------------------------=
-----------=20
=
<BR><BR>=CB=FC=C9=E8=D6=C3MySQL=B7=FE=CE=F1=C6=F7=B5=C4=D7=EE=B4=F3=B2=A2=
=B7=A2=C1=AC=BD=D3=CA=FD=CE=AA100=A1=A3=D2=AA=C8=B7=B1=A3=D4=DAmy.cnf=CE=C4=
=BC=FE=D6=D0=B5=C4[mysqld]=B1=EA=CC=E2=CF=C2=B2=E5=C8=EB=B1=E4=C1=BF=C9=E8=
=D6=C3=A1=A3=20
<BR>=C8=FD=A1=A2=B1=ED=C0=E0=D0=CD=20
=
<BR><BR>=BA=DC=B6=E0MySQL=D3=C3=BB=A7=BF=C9=C4=DC=BA=DC=BE=AA=D1=C8=A3=AC=
MySQL=C8=B7=CA=B5=CE=AA=D3=C3=BB=A7=CC=E1=B9=A95=D6=D6=B2=BB=CD=AC=B5=C4=B1=
=ED=C0=E0=D0=CD=A3=AC=B3=C6=CE=AADBD=A1=A2HEAP=A1=A2ISAM=A1=A2MERGE=BA=CD=
MyIASM=A1=A3DBD=B9=E9=CE=AA=CA=C2=CE=F1=B0=B2=C8=AB=C0=E0=A3=AC=B6=F8=C6=E4=
=CB=FB=CE=AA=B7=C7=CA=C2=CE=F1=B0=B2=C8=AB=C0=E0=A1=A3=20
<BR><BR>3.1=A1=A2=CA=C2=CE=F1=B0=B2=C8=AB =
<BR><BR>DBD <BR>Berkeley=20
=
DB(DBD)=B1=ED=CA=C7=D6=A7=B3=D6=CA=C2=CE=F1=B4=A6=C0=ED=B5=C4=B1=ED=A3=AC=
=D3=C9Sleepycat=C8=ED=BC=FE=B9=AB=CB=BE(<A=20
href=3D"http://www.sleepycat.com/"=20
=
target=3D_blank>http://www.sleepycat.com/</A>)/=BF=AA=B7=A2=A1=A3=CB=FC=CC=
=E1=B9=A9MySQL=D3=C3=BB=A7=C6=DA=B4=FD=D2=D1=BE=C3=B5=C4=B9=A6=C4=DC-=CA=C2=
=CE=F1=BF=D8=D6=C6=A1=A3=CA=C2=CE=F1=BF=D8=D6=C6=D4=DA=C8=CE=BA=CE=CA=FD=BE=
=DD=BF=E2=CF=B5=CD=B3=D6=D0=B6=BC=CA=C7=D2=BB=B8=F6=BC=AB=D3=D0=BC=DB=D6=B5=
=B5=C4=B9=A6=C4=DC=A3=AC=D2=F2=CE=AA=CB=FC=C3=C7=C8=B7=B1=A3=D2=BB=D7=E9=C3=
=FC=C1=EE=C4=DC=B3=C9=B9=A6=B5=D8=D6=B4=D0=D0=A1=A3=20
<BR><BR>3.2=A1=A2=B7=C7=CA=C2=CE=F1=B0=B2=C8=AB =
<BR><BR>HEAP=20
=
<BR><BR>HEAP=B1=ED=CA=C7MySQL=D6=D0=B4=E6=C8=A1=CA=FD=BE=DD=D7=EE=BF=EC=B5=
=C4=B1=ED=A1=A3=D5=E2=CA=C7=D2=F2=CE=AA=CB=FB=C3=C7=CA=B9=D3=C3=B4=E6=B4=A2=
=D4=DA=B6=AF=CC=AC=C4=DA=B4=E6=D6=D0=B5=C4=D2=BB=B8=F6=B9=FE=CF=A3=CB=F7=D2=
=FD=A1=A3=C1=ED=D2=BB=B8=F6=D2=AA=B5=E3=CA=C7=C8=E7=B9=FBMySQL=BB=F2=B7=FE=
=CE=F1=C6=F7=B1=C0=C0=A3=A3=AC=CA=FD=BE=DD=BD=AB=B6=AA=CA=A7=A1=A3=20
<BR><BR>ISAM=20
=
<BR><BR>ISAM=B1=ED=CA=C7=D4=E7=C6=DAMySQL=B0=E6=B1=BE=B5=C4=C8=B1=CA=A1=B1=
=ED=C0=E0=D0=CD=A3=AC=D6=B1=B5=BDMyIASM=BF=AA=B7=A2=B3=F6=C0=B4=A1=A3=BD=A8=
=D2=E9=B2=BB=D2=AA=D4=D9=CA=B9=D3=C3=CB=FC=A1=A3=20
<BR><BR>MERGE=20
=
<BR><BR>MERGE=CA=C7=D2=BB=B8=F6=D3=D0=C8=A4=B5=C4=D0=C2=C0=E0=D0=CD=A3=AC=
=D4=DA3.23.25=D6=AE=BA=F3=B3=F6=CF=D6=A1=A3=D2=BB=B8=F6MERGE=B1=ED=CA=B5=BC=
=CA=C9=CF=CA=C7=D2=BB=B8=F6=CF=E0=CD=ACMyISAM=B1=ED=B5=C4=BC=AF=BA=CF=A3=AC=
=BA=CF=B2=A2=B3=C9=D2=BB=B8=F6=B1=ED=A3=AC=D6=F7=D2=AA=CA=C7=CE=AA=C1=CB=D0=
=A7=C2=CA=D4=AD=D2=F2=A1=A3=D5=E2=D1=F9=BF=C9=D2=D4=CC=E1=B8=DF=CB=D9=B6=C8=
=A1=A2=CB=D1=CB=F7=D0=A7=C2=CA=A1=A2=D0=DE=B8=B4=D0=A7=C2=CA=B2=A2=BD=DA=CA=
=A1=B4=C5=C5=CC=BF=D5=BC=E4=A1=A3=20
<BR><BR>MyIASM=20
=
<BR><BR>=D5=E2=CA=C7MySQL=B5=C4=C8=B1=CA=A1=B1=ED=C0=E0=D0=CD=A1=A3=CB=FC=
=BB=F9=D3=DAIASM=B4=FA=C2=EB=A3=AC=B5=AB=D3=D0=BA=DC=B6=E0=D3=D0=D3=C3=B5=
=C4=C0=A9=D5=B9=A1=A3MyIASM=B1=C8=BD=CF=BA=C3=B5=C4=D4=AD=D2=F2=A3=BA=20
=
<BR><BR>MyIASM=B1=ED=D0=A1=D3=DAIASM=B1=ED=A3=AC=CB=F9=D2=D4=CA=B9=D3=C3=BD=
=CF=C9=D9=D7=CA=D4=B4=A1=A3=20
=
<BR>MyIASM=B1=ED=D4=DA=B2=BB=CD=AC=B5=C4=C6=BD=CC=A8=C9=CF=B6=FE=BD=F8=D6=
=C6=B2=E3=BF=C9=D2=C6=D6=B2=A1=A3 =
<BR>=B8=FC=B4=F3=B5=C4=BC=FC=C2=EB=B3=DF=B4=E7=A3=AC=B8=FC=B4=F3=B5=C4=BC=
=FC=C2=EB=C9=CF=CF=DE=A1=A3=20
<BR>3.3=A1=A2=D6=B8=B6=A8=B1=ED=C0=E0=D0=CD =
<BR><BR>=C4=E3=BF=C9=D4=DA=B4=B4=BD=A8=B1=ED=CA=B1=D6=B8=B6=A8=B1=ED=B5=C4=
=C0=E0=D0=CD=A1=A3=CF=C2=C0=FD=B4=B4=BD=A8=D2=BB=B8=F6HEAP=B1=ED=A3=BA=20
=
<BR><BR><BR>-------------------------------------------------------------=
-------------------=20
<BR><BR>mysql>CREATE TABLE email_addresses =
TYPE=3DHEAP=20
( <BR>->email char(55) NOT NULL, =
<BR>->name=20
char(30) NOT NULL, <BR>->PRIMARY KEY(email) =
);=20
=
<BR><BR><BR>-------------------------------------------------------------=
-------------------=20
=
<BR><BR>BDB=B1=ED=D0=E8=D2=AA=D2=BB=D0=A9=C5=E4=D6=C3=B9=A4=D7=F7=A3=AC=B2=
=CE=BC=FB<A=20
=
href=3D"http://www.mysql.com/doc/B/D/BDB_overview.html=A1=A3"=20
=
target=3D_blank>http://www.mysql.com/doc/B/D/BDB_overview.html=A1=A3</A><=
BR><BR>3.4=A1=A2=B8=FC=B6=E0=B5=C4=B1=ED=C0=E0=D0=CD=20
=
<BR><BR>=CE=AA=C1=CB=CA=B9MySQL=B9=DC=C0=ED=B9=A4=D7=F7=B8=FC=D3=D0=C8=A4=
=A3=AC=BC=B4=BD=AB=B7=A2=B2=BC=B5=C4MySQL=20
=
4.0=BD=AB=CC=E1=B9=A9=C1=BD=D6=D6=D0=C2=B5=C4=B1=ED=C0=E0=D0=CD=A3=AC=B3=C6=
=CE=AAInnobase=BA=CDGemeni=A1=A3 <BR><BR>4=A1=A2=D3=C5=BB=AF=B9=A4=BE=DF =
=
<BR><BR>MySQL=B7=FE=CE=F1=C6=F7=B1=BE=C9=ED=CC=E1=B9=A9=C1=CB=BC=B8=CC=F5=
=C4=DA=D6=C3=C3=FC=C1=EE=D3=C3=D3=DA=B0=EF=D6=FA=D3=C5=BB=AF=A1=A3 =
<BR><BR>4.1=A1=A2SHOW=20
=
<BR><BR>=C4=E3=BF=C9=C4=DC=D3=D0=D0=CB=C8=A4=D6=AA=B5=C0MySQL=B7=FE=CE=F1=
=C6=F7=BE=BF=BE=B9=B8=FC=C1=CB=CA=B2=C3=B4=A3=AC=CF=C2=C1=D0=C3=FC=C1=EE=B8=
=F8=B3=F6=D2=BB=B8=F6=D7=DC=BD=E1=A3=BA=20
=
<BR><BR><BR>-------------------------------------------------------------=
-------------------=20
<BR>mysql>show status;=20
=
<BR>---------------------------------------------------------------------=
-----------=20
=
<BR><BR>=CB=FC=B8=F8=B3=F6=C1=CB=D2=BB=B8=F6=CF=E0=B5=B1=B3=A4=B5=C4=D7=B4=
=CC=AC=B1=E4=C1=BF=BC=B0=C6=E4=D6=B5=B5=C4=C1=D0=B1=ED=A1=A3=D3=D0=D0=A9=B1=
=E4=C1=BF=B0=FC=BA=AC=C1=CB=D2=EC=B3=A3=D6=D5=D6=B9=BF=CD=BB=A7=B5=C4=CA=FD=
=C1=BF=A1=A2=D2=EC=B3=A3=D6=D5=D6=B9=C1=AC=BD=D3=B5=C4=CA=FD=C1=BF=A1=A2=C1=
=AC=BD=D3=B3=A2=CA=D4=B5=C4=B4=CE=CA=FD=A1=A2=D7=EE=B4=F3=B2=A2=B7=A2=C1=AC=
=BD=D3=CA=FD=BA=CD=B4=F3=C1=BF=C6=E4=CB=FB=D3=D0=D3=C3=B5=C4=D0=C5=CF=A2=A1=
=A3=D5=E2=D0=A9=D0=C5=CF=A2=B6=D4=D5=D2=B3=F6=CF=B5=CD=B3=CE=CA=CC=E2=BA=CD=
=B5=CD=D0=A7=BC=AB=BE=DF=BC=DB=D6=B5=A1=A3=20
=
<BR>SHOW=BB=B9=C4=DC=D7=F6=B8=FC=B6=E0=B5=C4=CA=C2=C7=E9=A1=A3=CB=FC=BF=C9=
=D2=D4=CF=D4=CA=BE=B9=D8=D3=DA=C8=D5=D6=BE=CE=C4=BC=FE=A1=A2=CC=D8=B6=A8=CA=
=FD=BE=DD=BF=E2=A1=A2=B1=ED=A1=A2=CB=F7=D2=FD=A1=A2=BD=F8=B3=CC=BA=CD=C8=A8=
=CF=DE=B1=ED=D6=D0=D3=D0=BC=DB=D6=B5=B5=C4=D0=C5=CF=A2=A1=A3=CF=EA=BC=FBM=
ySQL=CA=D6=B2=E1=A1=A3=20
<BR><BR>4.2=A1=A2EXPLAIN=20
=
<BR><BR>=B5=B1=C4=E3=C3=E6=B6=D4SELECT=D3=EF=BE=E4=CA=B1=A3=ACEXPLAIN=BD=E2=
=CA=CDSELECT=C3=FC=C1=EE=C8=E7=BA=CE=B1=BB=B4=A6=C0=ED=A1=A3=D5=E2=B2=BB=BD=
=F6=B6=D4=BE=F6=B6=A8=CA=C7=B7=F1=D3=A6=B8=C3=D4=F6=BC=D3=D2=BB=B8=F6=CB=F7=
=D2=FD=A3=AC=B6=F8=C7=D2=B6=D4=BE=F6=B6=A8=D2=BB=B8=F6=B8=B4=D4=D3=B5=C4J=
oin=C8=E7=BA=CE=B1=BBMySQL=B4=A6=C0=ED=B6=BC=CA=C7=D3=D0=B0=EF=D6=FA=B5=C4=
=A1=A3=20
<BR><BR>4.3=A1=A2OPTIMIZE=20
=
<BR><BR>OPTIMIZE=D3=EF=BE=E4=D4=CA=D0=ED=C4=E3=BB=D6=B8=B4=BF=D5=BC=E4=BA=
=CD=BA=CF=B2=A2=CA=FD=BE=DD=CE=C4=BC=FE=CB=E9=C6=AC=A3=AC=B6=D4=B0=FC=BA=AC=
=B1=E4=B3=A4=D0=D0=B5=C4=B1=ED=BD=F8=D0=D0=C1=CB=B4=F3=C1=BF=B8=FC=D0=C2=BA=
=CD=C9=BE=B3=FD=BA=F3=A3=AC=D5=E2=D1=F9=D7=F6=CC=D8=B1=F0=D6=D8=D2=AA=A1=A3=
OPTIMIZE=C4=BF=C7=B0=D6=BB=B9=A4=D7=F7=D3=DAMyIASM=BA=CDBDB=B1=ED=A1=A3<A=
=20
name=3Dendpid114958></A> <BR></TD></TR>
<TR align=3Dright>
<TD vAlign=3Dbottom><BR><BR><BR><BR><BR><IMG=20
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<P align=3Dright><FONT=20
=
color=3Dred>=C0=E8=C3=F7=BE=CD=CA=C7=C3=CE=B5=C4=D6=D5=BD=E1=A3=A1</FONT>=
</P></MARQUEE><BR><IMG=20
onmouseover=3D"if(this.alt) =
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onload=3D"javascript:if(this.width>screen.width-333) =
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border=3D0></TD></TR></TBODY></TABLE></TD></TR>
<TR bgColor=3D#e8f2ff>
<TD class=3Dsmalltxt vAlign=3Dcenter><A=20
=
href=3D"http://25.20.176.12/bbs/viewthread.php?tid=3D16503#pid114958"><IM=
G=20
alt=3D=BB=D8=B5=BD=B5=DA1=CC=F9=BF=AA=CD=B7=20
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src=3D"http://25.20.176.12/bbs/images/default/threadforward.gif"=20
align=3DabsMiddle border=3D0></A> 2004-3-21 09:53 =
PM</A> </TD>
<TD vAlign=3Dcenter>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" =
border=3D0>
<TBODY>
<TR class=3Dsmalltxt>
<TD align=3Dleft><A=20
=
href=3D"http://25.20.176.12/bbs/viewpro.php?username=3Dmacro"><IMG=20
alt=3D=B2=E9=BF=B4=D7=CA=C1=CF=20
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border=3D0></A> <A href=3D"http:///"=20
target=3D_blank><IMG =
alt=3D=B7=C3=CE=CA=D6=F7=D2=B3=20
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src=3D"http://25.20.176.12/bbs/images/default/site.gif"=20
border=3D0></A> <A=20
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href=3D"http://25.20.176.12/bbs/search.php?srchuname=3Dmacro&srchfid=3D=
all&srchfrom=3D0&searchsubmit=3Dyes"><IMG=20
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alt=3D=CB=D1=CB=F7=B8=C3=D3=C3=BB=A7=B5=C4=C8=AB=B2=BF=CC=FB=D7=D3=20
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border=3D0></A> <A=20
=
href=3D"http://25.20.176.12/bbs/pm.php?action=3Dsend&username=3Dmacro=
"=20
target=3D_blank><IMG =
alt=3D=B7=A2=B6=CC=CF=FB=CF=A2=20
=
src=3D"http://25.20.176.12/bbs/images/default/pm.gif"=20
border=3D0></A> </TD>
<TD align=3Dright> <A=20
=
href=3D"http://25.20.176.12/bbs/post.php?action=3Dreply&fid=3D143&=
;tid=3D16503&repquote=3D114958&page=3D1"><IMG=20
alt=3D=D2=FD=D3=C3=BB=D8=B8=B4=20
=
src=3D"http://25.20.176.12/bbs/images/default/quote.gif"=20
border=3D0></A> <A=20
=
href=3D"http://25.20.176.12/bbs/misc.php?action=3Dreport&fid=3D143&am=
p;tid=3D16503&pid=3D114958"><IMG=20
=
alt=3D=CF=F2=B0=E6=D6=F7=B7=B4=D3=A6=D5=E2=B8=F6=CC=FB=D7=D3=20
=
src=3D"http://25.20.176.12/bbs/images/default/report.gif"=20
border=3D0></A> <SELECT=20
=
onchange=3D"if(this.options[this.selectedIndex].value !=3D '') =
{ window.location=3D('misc.php?action=3Dkarma&tid=3D16503&pid=
=3D114958&username=3Dmacro&score=3D'+this.options[this.selectedIn=
dex].value+'&sid=3DhBfkBmKc') }"=20
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