Path: blob/main/documentation/manual-pages/ja/man7/tuning.7
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.\" Copyright (C) 2001 Matthew Dillon. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" %FreeBSD: src/share/man/man7/tuning.7,v 1.67.2.1 2004/12/21 21:34:57 keramida Exp % .\" .\" $FreeBSD$ .Dd June 25, 2002 .Dt TUNING 7 .Os .Sh ̾�� .Nm tuning .Nd FreeBSD �ˤ�������ǽ���塼�˥� .Sh �����ƥ����� - disklabel, newfs, tunefs, ����å� .Xr bsdlabel 8 �ޤ��� .Xr sysinstall 8 ��Ȥäƥϡ��ɥǥ�������˥ե����륷���ƥ��쥤�����Ȥ����硢 �ǥ�����������ȥ�å����⳰���ȥ�å��Τۤ������ä�®���ǡ����� ž���Ǥ��뤳�Ȥ�ռ����뤳�Ȥ����פǤ��� �����������������ˤϡ� 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�ڡ������������ɤ���ΨŪ��ư���ʤ��ʤ�ޤ��� ����ò¤µ¤ï¿½ï¿½ï¿½É²Ã¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Æ±ï¿½Í¤Ç¤ï¿½ï¿½ï¿½ �Ǹ�ˡ�ʣ���� SCSI �ǥ����� (���뤤�ϰۤʤ륳��ȥ������ˤ��� ʣ���� IDE �ǥ�����) ���������絬�Ϥʥ����ƥ�ˤ����Ƥϡ� ���줾��Υɥ饤�֤˥���åפ��֤����Ȥò¶¯¤ï¿½ï¿½ä¾©ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ �ƥɥ饤�־�Υ���åץѡ��ƥ�����󤬤ۤ�Ʊ���ç¤ï¿½ï¿½ï¿½Ë¤Ê¤ï¿½ �褦�ˤ��Ƥ��������� �����ͥ��Ǥ�դ��ç¤ï¿½ï¿½ï¿½ò°·¤ï¿½ï¿½ï¿½ï¿½È¤ï¿½ï¿½Ç¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Î¥Ç¡ï¿½ï¿½ï¿½ï¿½ï¿½Â¤ï¿½ï¿½ ����Υ���åץѡ��ƥ������Τ�Τ� 4 �ܤ��ç¤ï¿½ï¿½ï¿½Ë¤Ê¤Ã¤Æ¤ï¿½ï¿½Þ¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ����åץѡ��ƥ��������������Ʊ���ç¤ï¿½ï¿½ï¿½Ë¤ï¿½ï¿½ë¤³ï¿½È¤Ç¡ï¿½ �����ͥ�Ϻ�Ŭ����ˡ�ǥ���å׶��֤� N ��Υǥ��������Ф� ���ȥ饤�ԥ󥰤��ޤ��� �����Τ�ꤹ���òµ¤¤Ë¤ï¿½ï¿½ï¿½É¬ï¿½×¤Ï¤ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ����å׶��֤� .Ux ��ͥ����ư��뤿��Τ�ΤǤ��� ���ʤ���ۤɥ���åפ�ȤäƤ��ʤ��Ƥ⡢ �ץ�������˽���Ƕ���Ū�˥�֡��Ȥ��Ƥ��ޤ����ˡ� ������Ȥò¤¹¤ë¤¿ï¿½ï¿½Î»ï¿½ï¿½Ö²Ô¤ï¿½ï¿½Ë¤Ê¤ï¿½Þ¤ï¿½ï¿½ï¿½ .Pp .Pa /var �ѡ��ƥ�������ɤ�������ç¤ï¿½ï¿½ï¿½Ë¤ï¿½ï¿½ë¤«ï¿½Ï¡ï¿½ï¿½ï¿½ï¿½Î¥Þ¥ï¿½ï¿½ï¿½ï¿½ ���˻Ȥ����Ȥ������Ȥ��ç¤ï¿½ï¿½ï¿½ï¿½Â¸ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ 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.Pp .Pa /home �ѡ��ƥ������ϥ桼����Í�Υǡ������ݻ�����Τ˻Ȥ��ޤ��� �������ǥ������λĤ��Ȥ��ޤ��� .Pp ���� �ѡ��ƥ��������ڤ�ΤǤ��礦 ? 1 �Ĥ��ç¤ï¿½ï¿½ .Pa / �ѡ��ƥ���������������ɤ��ΤǤϤʤ��Ǥ��礦�� ? ��������о��������ʤ����ɤ������ˤ���ɬ�פϤʤ��Τ� ! �Ϥ������ιͤ����ɤ��ʤ��Τϡ������Ĥ���ͳ������ޤ��� 1 �Ĥ�ϡ����줾��Υѡ��ƥ������ϱ��Ѿ�����ʤ� �ۤʤ�ΤǤ�����������ʬΥ���뤳�Ȥǥե����륷���ƥ���Ф� �������ʤ�Ŭ�������塼��ò¤¹¤ë¤³ï¿½È¤ï¿½ï¿½ï¿½Ç½ï¿½Ë¤Ê¤ë¤«ï¿½ï¿½Ç¤ï¿½ï¿½ï¿½ �㤨�Х롼�ȥѡ��ƥ������� .Pa /usr �ѡ��ƥ������ϤۤȤ���ɤ߹��ߤǤ��ꡢ�ۤȤ�ɽñ¤¹ï¿½ï¿½ß¤ï¿½ï¿½ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ������ .Pa /var �� .Pa /var/tmp ���Ф��Ƥ����̤��ɤ߹��ߤ�ñ¤¹ï¿½ï¿½ß¤ï¿½ï¿½ï¿½ï¿½ï¿½Ç¤ï¿½ï¿½ç¤¦ï¿½ï¿½ �����ƥ�ò¤¦¤Þ¤ï¿½Ê¬ï¿½ä¤¹ï¿½ë¤³ï¿½È¤Ç¡ï¿½ï¿½ñ¤¹ï¿½ï¿½ß¤ï¿½Â¿ï¿½ï¿½ï¿½Ñ¡ï¿½ï¿½Æ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ë²ï¿½ï¿½ï¿½ ����ﳲ�����ۤȤ���ɤ߹��ߤΤߤΥѡ��ƥ������˵ڤФʤ��褦���ޤ��� �ä��ơ��ñ¤¹ï¿½ï¿½ß¤ï¿½Â¿ï¿½ï¿½ï¿½Ñ¡ï¿½ï¿½Æ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ç¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ã¼ (���ʤ���ѡ��ƥ������ơ��֥�ˤ����ơ� �������ç¤ï¿½Ê¥Ñ¡ï¿½ï¿½Æ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Î¸ï¿½ï¿½ï¿½Ç¤Ï¤Ê¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½) �������֤����Ȥǡ����Υѡ��ƥ������ˤĤ�����ǽ�����夷�ޤ��� ����ç¤ï¿½Ê¥Ñ¡ï¿½ï¿½Æ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ë¤Ä¤ï¿½ï¿½Æ¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ç½ï¿½ï¿½É¬ï¿½×¤Ê¤Î¤ï¿½Î¤ï¿½ï¿½Ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ .Pa /var ��ǥ�������ü���֤����ç¤ï¿½Ê²ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ç½ï¿½Ç¤ï¿½ï¿½ï¿½Î¤ï¿½ï¿½Ð¤ï¿½ï¿½ï¿½ ����ʥѡ��ƥ�������ǥ�������ü���֤��Ƥ⤽��ۤ���ǽ�� �����ˤϤĤʤ���ޤ��� �Ǹ�ϰ������˴ؤ�뤳�ȤǤ��� ���������ʷ�ʡ��ܼ�Ū���ɤ߹��ߤΤߤ� �롼�ȥѡ��ƥ������Ȥ��뤳�Ȥǡ�����å����������Ӥ����󥹤� �ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ë¤³ï¿½È¤ï¿½ï¿½Ç¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Pp �����ƥ��������ʬ�䤹�뤳�Ȥǡ� .Xr newfs 8 �� .Xr tunefs 8 ��Ϳ����ѥ�᡼������塼�󤹤뤳�Ȥ��ǽ�ˤʤ�ޤ��� .Xr newfs 8 �Υ��塼�˥󥰤ˤϤ���˷и���ɬ�פǤ��������ʤ����ǽ�����ˤĤʤ���ޤ��� ���Ū�����˥��塼��Ǥ��� 3 �ĤΥѥ�᡼��������ޤ�: .Em blocksize , bytes/inode , .Em cylinders/group �Ǥ��� .Pp .Fx �� 8K �ޤ��� 16K �Υե����륷���ƥ�֥��å�����������Ѥ������� �ǹ����ǽ�������ޤ��� �ǥե���Ȥ� 16K �Ǥ��ꡢ �ۤȤ�ɤΥ��ץꥱ���������ɤ���̤Ȥʤ�ޤ����� �ç¤ï¿½Ê¥Õ¥ï¿½ï¿½ï¿½ï¿½ï¿½Ë¥ï¿½ï¿½ï¿½ï¿½à¥¢ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë¥¢ï¿½×¥ê¥±ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ (�ǡ����١��������Х��եȥ�������) ���㳰�Ǥ��� ���Τ褦�ʥ��ץꥱ�������Ǥϡ� �����ʥ֥��å����������ɤ���̤Ȥʤ뷹��������ޤ����� �Ƕ�Υǥ������������ˤ����Ƥϡ� �����ʥ֥��å��������λ��ѤϹ�θ���ͤ��ʤ��Ǥ��礦�� 16K ����ç¤ï¿½Ê¥Ö¥ï¿½ï¿½Ã¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ñ¤ï¿½ï¿½ï¿½ï¿½ �Хåե�����å�������Ҳ��ò¾·¤ï¿½ï¿½ï¿½ï¿½ï¿½Ç½ï¿½ï¿½ï¿½ã²¼ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Pp �ǥե���Ȥϡ� ¿��� inode ��ɬ�פȤ���ե����륷���ƥ�䡢 ¿��ʾ��ե�������ݻ����뤳�Ȥ�տޤ����ե����륷���ƥ�ˤ� �����ʤ����⤷��ޤ��� ���Τ褦�ʥե����륷���ƥ�ϡ� 8K �ޤ��� 4K �Υ֥��å��������Ǻ��������٤��Ǥ��� ����Ϥޤ��������ʥե饰���ȥ���������ꤹ��ɬ�פ�����ޤ��� ��˥֥��å��������� 1/8 �Υե饰���ȥ������ˤ��뤳�Ȥ�侩���ޤ� (¾�Υե饰���ȥ������γ��ǤϤ��ޤ�ƥ��Ȥ���Ƥ��ޤ���)�� ����� .Xr newfs 8 ���ץ����� .Dq Li "newfs -f 1024 -b 8192 ..." �Ȥʤ�Ǥ��礦�� .Pp �ç¤ï¿½Ê¥Ñ¡ï¿½ï¿½Æ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ë¡ï¿½ï¿½Ç¡ï¿½ï¿½ï¿½ï¿½Ù¡ï¿½ï¿½ï¿½ï¿½Õ¥ï¿½ï¿½ï¿½ï¿½ï¿½Î¤è¤¦ï¿½ï¿½ �������ç¤ï¿½Ê¥Õ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ö¤ï¿½ï¿½Î¤Ç¤ï¿½ï¿½ï¿½Ð¡ï¿½ .Em bytes/i-node ����Ψ�����䤹���Ȥ��Ǥ��ޤ��� ����ϡ����Υѡ��ƥ������� inode �ο� (�ե������ǥ��쥯�ȥ�κ���ο�) �ò¸º¤é¤·ï¿½Þ¤ï¿½ï¿½ï¿½ inode ��ò¸º¤é¤¹ï¿½ï¿½ï¿½È¤Ç¡ï¿½ï¿½ï¿½ï¿½ï¿½Ã¥ï¿½ï¿½ï¿½ï¿½ï¿½ .Xr fsck 8 �ˤ�뽤�����֤������˸��餹���Ȥ��Ǥ��ޤ��� �����ˤ��Υѡ��ƥ��������ç¤ï¿½Ê¥Õ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ö¤ï¿½ï¿½Î¤Ç¤Ê¤ï¿½ï¿½Â¤ê¡¢ ���Υ��ץ�����Ȥ�ʤ��Ǥ��������� �����ΰ褬���̤ˤ���Τ˥ե��������ƤǤ��ʤ��ʤ뤫�⤷��ޤ��� bytes/inode �ϡ�32768 �� 65536 �� 262144 �Ȥ��뤳�Ȥ��侩����ޤ��� ���ç¤ï¿½ï¿½ï¿½Í¤Ë¤ï¿½ï¿½ë¤³ï¿½È¤ï¿½ï¿½Ç¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ï¿½ï¿½ .Xr fsck 8 �ˤ�뽤�����֤����䤹�����Ǥ��礦�� �㤨�С� .Dq Li "newfs -i 32768 ..." �Τ褦�ˤ����ͤ�Ϳ���ޤ��� .Pp .Xr tunefs 8 �ϥե����륷���ƥ�ò¤µ¤ï¿½Ë¥ï¿½ï¿½å¡¼ï¿½ó¤¹¤ï¿½Î¤Ë»È¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ���Υ��ޥ�ɤϡ����󥰥�桼���⡼�ɤǼ¹Ԥ��뤳�Ȥ��Ǥ��� �ե����륷���ƥ�κƥե����ޥåȤ����פǤ��� �������������餯�Ǥ���äƻ��Ѥ���Ƥ���ץ������Ǥ��礦�� ¿���οͤϥե����륷���ƥ�����Ѳ�ǽ�ʶ����ΰ�����䤽���Ȥ��ơ� min-free ���� 0 �����ꤷ�ޤ��� ����ϥե����륷���ƥ�����������Ҳ��ˤĤʤ���Τǡ��侩����ޤ��� �����ǡ�ͣ�������˲��ͤ����� .Xr tunefs 8 �Υ��ץ����ϡ� .Dq Li "tunefs -n enable /filesystem" �Ȥ��� .Em softupdates ��Í���ˤ��뤳�ȤǤ� (����: .Fx 4.5 �ʹߤǤ� .Xr newfs 8 �� .Fl U ���ץ�����Ϳ���뤳�Ȥ� softupdates ��Í���� 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mount 8 �¹Ի��Τ����Ĥ��Υ��ץ����ϥե����륷���ƥ����塼�󤹤�Τ���Ω���ޤ��� �Ǥ����餫�ǡ�������Ǥ�����ʤΤ� .Cm async �Ǥ��� ����Ϸ褷�ƻȤ�ʤ��Ǥ��������� ���Ѵ����Ǥ��� ���Ū�����٤��㤯��������Ω�� .Xr mount 8 �Υ��ץ����� .Cm noatime �Ǥ��� �̾� .Ux �ե����륷���ƥ�ϡ��ե������ǥ��쥯�ȥ�˥��������� ���ä����Ͼ�ˡ����κǽ�������������ò¹¹¿ï¿½ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Fx �Ǥϡ�����ư����ٱ�ñ¤¹ï¿½ï¿½ß¤Ç¹Ô¤Ê¤ï¿½ì¡¢ �̾���礷����٤ˤϤʤ�ޤ��� �����������̤Υե����뤬Ϣ³���ƥ����������줿��硢 �Хåե�����å��夬������������ι����DZ������� �ç¤ï¿½ï¿½ï¿½ï¿½Ù¤È¤Ê¤ï¿½Þ¤ï¿½ï¿½ï¿½ �㤨�С�����٤� web �����Ȥ����̤��ɼԤ�������˥塼�������� �Ǥϡ����� .Xr mount 8 �Υ��ץ������ç¤ï¿½Ê¥Ñ¡ï¿½ï¿½Æ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ë¤ï¿½ï¿½ï¿½ï¿½ï¿½ ������������ι�������ߤ��뤳�Ȥ��ͤ����ޤ��� �����ʤ������٤Ƥξ��ǥ�����������ι�������ߤ��ʤ��Ǥ��������� �㤨�С� .Pa /var �ե����륷���ƥ�ϡ�����Ū�˥᡼��ܥå������ݻ����� �����᡼��Υ᡼��ܥå������Í̵Ƚ��� atime (����� mtime) �����Ѥ���ޤ��� �ɤ߹������ѥѡ��ƥ������ .Pa / �� .Pa /usr �Ǥϡ�atime �ò¥ª¥ï¿½Ë¤ï¿½ï¿½Æ¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½É¤ï¿½ï¿½Ç¤ï¿½ï¿½ç¤¦ï¿½ï¿½ �����ƥ�桼�ƥ���ƥ��ˤϡ�atime 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�ޤ���¿���οͤ����Ӱ�Ķ��ˤ��ݶ�ò¤µ¤ï¿½Ê¤ï¿½ï¿½è¤¦ï¿½ï¿½ �տ�Ū���Ӱ����¤ò¤«¤ï¿½ï¿½Æ¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Pp .Va net.inet.tcp.rfc1323 sysctl �������ǽ�� TCP �ץ��ȥ���Υ�����ɥ���������󥰳�ĥ�� ξ���Υۥ��Ȥ����ݡ��Ȥ��ʤ��¤ꡢ TCP ���������뤤�ϼ����Хåե��������� 65535 ��Ķ���ƻ��ꤷ�Ƥ� �ۤȤ����ǽ�β����Ϥ���ޤ��� �����Υͥåȥ����󥯤����ɤ���ǽ������Ф�����ˡ� �����γ�ĥ��Í���ˤ��� TCP �Хåե��������� 65536 ����ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ê¤¹ï¿½Ù¤ï¿½ï¿½Ç¤ï¿½ï¿½ï¿½ �äˡ������ӥå� WAN ��󥯤䡢��쥤�ƥ󥷤α�����󥯤��оݤȤʤ�ޤ��� RFC1323 ���ݡ��Ȥϡ��ǥե���Ȥǥ���ˤʤäƤ��ޤ��� .Pp .Va net.inet.tcp.always_keepalive sysctl �ϡ�TCP �����������ͥ����������³Ū�� .Dq keepalives ���������뤳�Ȥǻ��Ǥ��ޤä� TCP ���ͥ������θ��Ф��ߤ뤫 �ɤ�������ꤷ�ޤ��� �ǥե���Ȥǡ�����Ϥ��٤ƤΥ��ץꥱ�������ˤĤ��Ƶ��Ĥ���Ƥ��ޤ��� ���� sysctl �� 0 �����ꤹ��ȡ��ä� keepalives ���׵ᤷ�� ���ץꥱ���������������е�ǽ�����ѤǤ��ޤ��� ����δĶ��ˤ����ơ����Ǥ��ޤä� TCP ���ͥ������ò¼º¸ï¿½ï¿½Ë¤ï¿½ï¿½ë¤³ï¿½È¤Ç¡ï¿½ TCP keepalives �ϥ����ƥ���֤δ�����������ޤ��� �ä˥�����륢�åפΥ桼���˥����ӥ����󶡤��Ƥ��륷���ƥ�Ǥ� ���̤�����ޤ��� �ʤ��ʤ�桼�����ͥåȥ���ȤΥ��ͥ��������ڤ����� ���Ĥ�ġ��� TCP ���ͥ�������λ����Ȥϸ¤�ʤ�����Ǥ��� �������ʤ��顢�����δĶ��Ǥϡ����Ū�ʥͥåȥ������ߤ� ���äƥ��å����λ��Ƚ�Ǥ���뤫�⤷��ޤ��� ��̤Ȥ��� ͽ�����ʤ� TCP ���ͥ������ν�λ�Ȥʤ�ޤ��� �����ͤʴĶ��Ǥϡ�sysctl �� 0 �����ꤹ�뤳�Ȥǡ� TCP �Υ��å�������Ǥ�ȯ���ò¸º¤é¤»ï¿½ë¤«ï¿½â¤·ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Pp .Va net.inet.tcp.delayed_ack TCP ��ǽ���ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ò¤µ¤ï¿½Æ¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ���Ū�ˤϡ����ε�ǽ�ϡ�ž�����줿�ǡ������Ф����ǧ������ �����ȶ����֤���褦�ˤ��뤿��˥ǥ����󤵤�ޤ����� �㤨�С���⡼�ȥ������ǥ������Ϥ��Ƥ���Ȥ��� ���ʤ�����������ʸ���ؤγ�ǧ�����ϡ�ʸ���Υ�������ɽ���ǡ����ȶ����֤���ޤ��� �ٱ��ǧ�����ò¥ª¥Õ¤Ë¤ï¿½ï¿½ï¿½È¡ï¿½ ��⡼�ȥ����ӥ������ټ�����ä��ǡ����ò¥¨¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ëµ¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ë¡ï¿½ ��ǧ���������������ޤ�ѥ��åȤ������Ƥ��ޤ����⤷��ޤ��� ����Ʊ���ͤ��������٤Ƥ�����Ū�ץ��ȥ��� (�� SMTP, WWW, POP3) �ˤ��ƤϤޤꡢ �ͥåȥ�����Ұ�����ή��Ƥ��뾮�ѥ��åȤò¸º¤é¤»ï¿½ï¿½Î¤Ç¤ï¿½ï¿½ï¿½ .Fx ���ٱ��ǧ�����μ����⡢TCP �ץ��ȥ���ε�§�˽��äƤ��ޤ��� ���ʤ����ɸ��� 100ms �Υ����ॢ���Ȥ��вᤷ�ʤ��Ƥ⡢ 2 �ѥ��åȤ� 1 ��ϳ�ǧ������Ԥ��ޤ��� 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net.inet.tcp.inflight.debug �� 0 (�ǥХå�̵��) �����ꤹ�뤳�Ȥ�˺�줺�ˡ� �±��ѤǤϡ� .Va net.inet.tcp.inflight.min �ò¾¯¤Ê¤ï¿½ï¿½È¤ï¿½ 6144 �����ꤹ���Í�ѤǤ��礦�� �������ʤ��顢�����ͤ��ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ê¤¹ï¿½ï¿½È¡ï¿½ ��󥯤ˤ�äƤϥХ�������¤�̵���ˤ����̤Ȥʤ����뤳�Ȥ����դ��Ƥ��������� �ܸ��굡ǽ�ϡ� ��֥롼���䥹���å��Υѥ��åȥ��塼�����Ѥ����ǡ����̤ò¸º¤é¤·ï¿½ï¿½ ��������ۥ��ȤΥ��󥿥ե��������塼�����Ѥ����ǡ����̤�⸺�餷�ޤ��� ���塼�����ѥ��åȿ������ʤ��ȡ�����Ū���ͥ������ �ä���®��ǥ��ͳ�Τ�Τϡ�û���������֤Ǥ�ư���ǽ�ˤʤ�ޤ��� �������ʤ��顢���ε�ǽ�ϥǡ������� (���åץ����� / �����ӥ�¦) �ˤΤ߱ƶ����뤳�Ȥ����դ��Ƥ��������� �ǡ������� (�����������) �ˤϱƶ����ޤ��� .Pp .Va net.inet.tcp.inflight.stab ��Ĵ���Ϥ����ᤷ�ޤ��� ���Υѥ�᡼���Υǥե���Ȥ� 20 �Ǥ��ꡢ �Х�������ٱ���ѤΥ�����ɥ��׻����Ф��� 2 �Ĥζ���ѥ��åȤ��ɲä���뤳�Ȥò¼¨¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ���르�ꥺ��ΰ��경�Τ���ˡ��ɲäΥ�����ɥ���ɬ�פȤʤꡢ ���֤��Ѳ����Ф������������ޤ��� �������ʤ��顢�٤���󥯱ۤ��Ǥϡ�ping ���ٱ���ç¤ï¿½ï¿½ï¿½ï¿½ï¿½Æ¤ï¿½ï¿½Þ¤ï¿½ï¿½Þ¤ï¿½ (����Ǥ⡢inflight ���르�ꥺ��̵������٤�С��㤤��ΤǤ�)�� ���Τ褦�ʾ�硢���Υѥ�᡼���� 15, 10, 5 �˸��餷�� .Va net.inet.tcp.inflight.min �� (�㤨�� 3500 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����ä��������ƥब��̤Υݡ��Ȥò³°¸ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Í¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ���Ѥ��뤳�Ȥ���Ԥ��ޤ��� ���Τ��ᡢ .Va net.inet.ip.portrange.first ���㲼�����뤳�ȤϤ�����Ǥ��ޤ��� .Pp .Va kern.ipc.somaxconn sysctl �ϡ������� TCP ���ͥ�����������դ��뤿��� listen ���塼�� �����������¤��ޤ��� ����٤� web �����дĶ��Ǥϡ� �ǥե�����ͤ� 128 �Ͽ��������ͥ�������;͵���äư����ˤ��㤹���ޤ��� ���Τ褦�ʴĶ��Ǥϡ������ͤ� 1024 �ʾ�����䤹���Ȥ��侩����ޤ��� �����ӥ��ǡ���� (�㤨�� .Xr sendmail 8 �� apache) �ϼ�ʬ���Ȥ� listen ���塼�Υ����������¤��Ƥ��뤫�⤷��ޤ��󤬡�����ե������ ���塼�Υ����������䤹�ǥ��쥯�ƥ��֤���Ĥ褦�ˤʤ�Ǥ��礦�� listen ���塼���ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ë¤³ï¿½È¤Ï¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ó¥ï¿½ï¿½ï¿½ï¿½Ý¹ï¿½ï¿½ï¿½ï¿½ï¿½É¤ï¿½ï¿½Î¤Ë¤ï¿½ï¿½ï¿½Î©ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Pp .Va kern.maxfiles sysctl �ϡ������ƥब�ɤ�����ο��Υե�����ò¥ª¡ï¿½ï¿½×¥ï¿½Ç¤ï¿½ï¿½ë¤«ï¿½ï¿½ ���ޤ��� �ǥե���Ȥ�ŵ��Ū�ˤϿ���Ǥ������ǡ����١����äµï¿½Ò»Ò¤ï¿½ ���̤˻Ȥ��ǡ������Ư���Ƥ������ 10000 �� 20000 �˰����夲��ɬ�� �����뤫�⤷��ޤ��� �ɤ߹������Ѥ� .Va kern.openfiles sysctl �ò¸¡ºï¿½ï¿½ï¿½ï¿½ë¤³ï¿½È¤Ç¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Æ¥ï¿½ï¿½Ç³ï¿½ï¿½ï¿½ï¿½ï¿½Æ¤ï¿½ï¿½ï¿½Õ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½È½ï¿½ï¿½ï¿½Ç½ï¿½Ç¤ï¿½ï¿½ï¿½ .Pp .Va vm.swap_idle_enabled sysctl �ϡ�¿���Υ桼���������ƥ�˽����ꤷ�����̤Υ����ɥ�ץ������� �����ç¤ï¿½Ê¥Þ¥ï¿½ï¿½ï¿½æ¡¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Æ¥ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Ç¤ï¿½ï¿½ï¿½ ���Τ褦�ʥ����ƥ�Ǥϡ��ե꡼�����ͽ����Ф��� ��³���ƽ������ô�ò¤«¤ï¿½ï¿½ë·¹ï¿½ï¿½ï¿½Ë¤ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ����ò¥ª¥ï¿½Ë¤ï¿½ï¿½ï¿½ .Va vm.swap_idle_threshold1 sysctl �� .Va vm.swap_idle_threshold2 sysctl �ǥ���åץ����ȥҥ��ƥꥷ�� (�����ɥ���ÿ�) ��Ĵ�����뤳�Ȥ� �����ɥ�ץ�������Ϳ�����Ƥ���ڡ�����ͥ���٤��̾�Υڡ��������� ���르�ꥺ�����®�䤫�˲����뤳�Ȥ��Ǥ��ޤ��� ����ϥڡ��������ȥǡ������������ޤ��� ɬ�פ��ʤ������ꡢ ���Υ��ץ����ϥ���ˤ��ʤ��Ǥ��������� ����ˤ�äƵ�����ȥ졼�ɥ��դϡ��ܼ�Ū�ˡ� ����åפȥǥ������Ӱ�������¿�����ñ¤·¤Æ¥ï¿½ï¿½ï¿½Î¥×¥ï¿½Ú¡ï¿½ï¿½ï¿½ï¿½ó¥°¤ï¿½ ����ᤤ�����˹Ԥ����Ȥ�����Ǥ��� �����ʥ����ƥ�ǤϤ��Υ��ץ�����Í���Ȥʤ�Ǥ��礦���� ���Ǥˤ������٥ڡ����󥰤�ȯ�����Ƥ����ç¤ï¿½Ê¥ï¿½ï¿½ï¿½ï¿½Æ¥ï¿½Ç¤Ï¡ï¿½ ���Υ��ץ����ˤ�äơ����ΤΥץ�����������ưפ˥�������ä��� �Ф��ꤹ��褦�ˤǤ���Ǥ��礦�� .Sh �������Υ��塼�ʥ֥� �����ƥ��ư��ΰ����ϡ� ���Τ���Υ��������Ƥ�֡��Ƚ����ν���˹Ԥ�ɬ�פ����뤿��ˡ� �¹Ի��ˤ�Ĵ���Բ�ǽ�Ǥ��� �������Υ��塼�ʥ֥���ѹ�����ˤϡ��������ͤ� .Xr loader.conf 5 �����ꤷ�������ƥ���֡��Ȥ���ɬ�פ�����ޤ��� .Pp .Va kern.maxusers �ϡ���Ū�ʥ����ƥ�ơ��֥���ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½æ¤·ï¿½Þ¤ï¿½ï¿½ï¿½ ����ˤϡ� �����ץ�ե�����κ�������ͥåȥ������ñ¸»¤ï¿½ï¿½ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Þ¤Þ¤ï¿½Þ¤ï¿½ï¿½ï¿½ .Fx 4.5 �λ����Ǥϡ� .Va kern.maxusers �ϡ��֡��Ȼ��ˡ������ƥ�����Ѳ�ǽ�ʥ����̤˱����ơ� �ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Æ°Åªï¿½Ë·ï¿½ï¿½ê¤µï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ �ޤ����¹Ի��ˡ��ɤ߼�����Ѥ� .Va kern.maxusers sysctl �ͤò¸«¤Æ·ï¿½ï¿½ê¤¹ï¿½ë¤³ï¿½È¤ï¿½ï¿½Ç½ï¿½Ç¤ï¿½ï¿½ï¿½ �����Ȥˤ�äƤϡ� .Va kern.maxusers ���ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¾®ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¤¹ï¿½ï¿½É¬ï¿½×¤ï¿½ï¿½ï¿½ï¿½ê¡¢ ����ϥ��������塼�ʥ֥�������ǽ�Ǥ��� 64, 128, 256 �ϡ��Ѥ��ͤǤϤ���ޤ��� ����ʥե����ëµï¿½Ò»Ò¤ï¿½É¬ï¿½×¤Ê¤Î¤Ç¤Ê¤ï¿½ï¿½Â¤ê¡¢ 256 ����ç¤ï¿½ï¿½ï¿½ï¿½ï¿½ë¤³ï¿½È¤Ï´ï¿½ï¿½ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Va kern.maxusers �ˤ�äƥǥե�����ͤ����ꤵ���¿���Υ��塼�ʥ֥��ͤϡ� ��ʸ����̤ξ��˵��Ҥ�����ˡ�ǡ� �ġ��˥֡��Ȼ��ޤ��ϼ¹Ի��˾�ñ¤²ï¿½Ç½ï¿½Ç¤ï¿½ï¿½ï¿½ .Fx 4.4 ���Ť������ƥ�Ǥϡ� �����ͥ�� .Xr config 8 ���ץ����� .Cd maxusers �����ꤹ��ɬ�פ�����ޤ��� .Pp .Va kern.ipc.nmbclusters ��Ĵ�����뤳�Ȥǡ������ƥब������Ƥ褦�Ȥ��Ƥ��� �ͥåȥ�� mbuf �ο������䤹���Ȥ��Ǥ��ޤ��� ���줾��Υ��饹������ 2K �Υ������������Τǡ� 1024 �� 2M �Υ����ͥ�����ͥåȥ���Хåե��� ͽ�󤹤뤳�Ȥò¼¨¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ��ñ�ʷ׻��Ǥɤ����ɬ�פʤΤ����狼��ޤ��� web �����Ф�Ʊ���˺��� 1000 �ܤΥ��ͥ������ò°·¤ï¿½ï¿½ï¿½ �ƥ��ͥ������ 16K �μ����Хåե��� 16K �������Хåե�����ñ¤¹¤ï¿½ï¿½ç¡¢ �� 32MB ����������ͥåȥ���Хåե��ò°·¤ï¿½É¬ï¿½×¤ï¿½ï¿½ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ �и�����������ˡ�ˤ��ȡ�2 �ܤ�����ɤ��Ȥ���Ƥ��ޤ��� �Ĥޤ� 32MBx2 = 64MB/2K = 32768 �Ǥ��� �������äơ����ξ��� .Va kern.ipc.nmbclusters �� 32768 �����ꤷ�ޤ��� �椯�餤���̤Υ��꤬��ܤ��줿�ޥ���Ǥ� 1024 ���� 4096�� ��������̤Υ��꤬��ܤ���Ƥ���ʤ� 4096 ���� 32768 ���ͤ� �侩���ޤ��� �褷���ç¤ï¿½ï¿½ï¿½Í¤ï¿½ï¿½ï¿½ê¤¹ï¿½Ù¤ï¿½ï¿½Ç¤Ï¤ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ �֡��Ȼ��˥���å���������������ǽ��������ޤ��� .Xr netstat 1 �� .Fl m ���ץ�����Ϳ���뤳�Ȥǡ��ͥåȥ�����饹���λ��Ѿ�����ʬ����ޤ��� �Ť� .Fx �ǤϤ��Υ��塼�ʥ֥������ޤ���Τǡ� ���˥����ͥ�� .Xr config 8 ���ץ����� .Dv NMBCLUSTERS �����ꤹ��ɬ�פ�����ޤ��� .Pp �ޤ��ޤ�¿���Υץ�����ब .Xr sendfile 2 �����ƥॳ�����Ȥäƥͥåȥ�����̤��ƥե������ ž�����Ƥ��ޤ��� .Va kern.ipc.nsfbufs sysctl �� .Xr sendfile 2 �μ¹Ի��˥ե����륷���ƥ�Хåե���ɤ�����ο����� �Ȥ��뤫�����椷�ޤ��� �̾盧�Υѥ�᡼���� .Va kern.maxusers �����㤷�Ƥ���Τǡ���ü�ʾ�������Ƥ� ���Υѥ�᡼���˼��Ф�ɬ�פϤ���ޤ��� �ܺ٤ϡ� .Xr sendfile 2 �ޥ˥奢��ڡ����� .Sx ���塼�˥� ��ò»²¾È¤ï¿½ï¿½Æ¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ .Sh �����ͥ빽���ˤ�������塼�˥� �絬�Ϥʥ����ƥ�Ǥϡ������Ĥ��Υ����ͥ륪�ץ��������ʤ���� �ʤ�ʤ����⤷��ޤ��� �����Υ��ץ������ѹ������硢���ʤ��� ���������鿷���������ͥ�ò¥³¥ï¿½Ñ¥ï¿½ï¿½ï¿½Ç¤ï¿½ï¿½Ê¤ï¿½ï¿½ï¿½Ð¤Ê¤ï¿½Þ¤ï¿½ï¿½ï¿½ .Xr config 8 �ޥ˥奢��ڡ�����ϥ�ɥ֥å����ɤ�����Ȥʤ�Ǥ��礦�� ���ʤ������Υ������५���ͥ����Ȥ��˰��̤˺ǽ�ˤ��뤳�Ȥϡ� ���Ѥ��ʤ��ɥ饤�Ф䥵���ӥ��ò¤¹¤Ù¤Æºï¿½ë¤³ï¿½È¤Ç¤ï¿½ï¿½ï¿½ .Dv INET6 ��Ȥ�ʤ��ɥ饤�Ф������뤳�Ȥǡ������ͥ�Υ���������� 1 �ᥬ�Х��Ȱʾ帺�餹���Ȥ��Ǥ������ץꥱ�������ˤ���� �����Ϳ���뤳�Ȥ��Ǥ��ޤ��� .Pp .Dv SCSI_DELAY �ϡ������ƥ�ε�ư���֤ò¸º¤é¤¹ï¿½ï¿½ï¿½ï¿½Ë»È¤ï¿½ï¿½ï¿½ï¿½È¤ï¿½ï¿½Ç¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ���Υǥե�����ͤϤ��ʤ��ç¤ï¿½ï¿½ï¿½ï¿½ï¿½Ö¡ï¿½ï¿½È½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ 5 �ðʾ������Ǥ��礦�� .Dv SCSI_DELAY �� 5 ��̤���˸��餷�Ƥ⤦�ޤ�ư�����⤷��ޤ��� (�ä˺Ƕ�Υɥ饤�֤Ǥ�)�� .Dv IDE_DELAY (PC98 �ǤΤ����Ѳ�ǽ) �ò¸º¤é¤·ï¿½Æ¤â¤¦ï¿½Þ¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½Å¤Ë¤Ê¤ï¿½É¬ï¿½×¤ï¿½ï¿½ï¿½ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ .Pp .Dv *_CPU ���ץ�����¿���ϥ����ȥ����ȤǤ��ޤ��� ���Υ����ͥ�� Pentium ���饹�� CPU ������ư�����ʤ顢 .Dv I386_CPU �� .Dv I486_CPU �Ϻ�����뤳�Ȥ��Ǥ��ޤ��� �������� .Dv I586_CPU �ϡ�CPU �� Pentium II �ʾ�Ȥ���ǧ������뤳�Ȥ��ǧ���Ƥ��� ������Ƥ��������� Pentium �� 486 �Ȥ��Ƥ���ǧ������륯������¸�ߤ��� ���ξ��Ϥ����Υ��ץ���󤬤ʤ��ȵ�ư���뤳�Ȥ��Ǥ��ޤ��� �⤷ư�����餹�������ȤǤ� ! ���ڥ졼�ƥ��󥰥����ƥ�ϡ�MMU �� �������ڤ��ؤ���������١������ǥХ������˻�롢�����٤ʵ�ǽ�� ������Ѥ��뤳�Ȥ��Ǥ���褦�ˤʤ�ޤ��� �ä��Ƥ����٤� CPU �ϡ������ͥ뤬�����ͥ뼫�Ȥ����˥ޥåפ��� 4MB �� MMU �ڡ����ò¥µ¥Ý¡ï¿½ï¿½È¤ï¿½ï¿½Þ¤ï¿½ï¿½ï¿½ ����Ϲ⤤�����ƥॳ������٤� ���Ǥθ�Ψ��夲�ޤ��� .Sh IDE �饤�ȥ���å��� .Fx 4.3 �Ǥ� IDE 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