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¿Ã·ÁÁü: 2009.1.20 È, 8:34 am ÁÖÁ¦: FreeBSD 7.1 ´Þ¶óÁø °Í ¸î°¡Áö |
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FreeBSD 7.1ÀÇ Å« º¯È´Â ù° ±âº» ½ºÄÉÁì·¯ÀÇ º¯°æ, µÎ¹ø° 'Æ®·¹À̽Ì, µð¹ö±ë ±×¸®°í ¸ð´ÏÅ͸µÀÇ °È'¶ó°í ÇÒ ¼ö ÀÖÀ» Á¤µµ·Î À̺κÐÀÇ ¹ßÀüÀÌ µ¸º¸ÀδÙ. ´Þ¶óÁø °ÍÀ» °£´ÜÈ÷ Àû¾îº»´Ù.
1. SCHED_ULE ½ºÄÉÁì·¯
GENERIC Ä¿³Î¿¡¼ ±âº» ½ºÄÉÁÙ·¯°¡ SCHED_4BSD ¿¡¼ SCHED_ULE À¸·Î º¯°æµÇ¾ú´Ù. 7.0¿¡¼´Â Ä¿³Î ÄÄÆÄÀÏÀ» ÅëÇؼ SCHED_ULE ·Î º¯°æÇÒ ¼ö ÀÖ¾ú´Ù.
ÄÚµå: | options SCHED_ULE # ULE scheduler |
2. DTrace
OpenSolarisÀÇ DTrace°¡ µåµð¾î FreeBSD¿¡ Æ÷ÆõǾú´Ù. DTrace »ç¿ëÀ» À§Çؼ´Â Ä¿³Î ¼³Á¤ ÆÄÀÏ¿¡ ´ÙÀ½À» Ãß°¡ÇÑ´Ù.
ÄÚµå: | options KDTRACE_HOOKS # Kernel DTrace hooks
options DDB_CTF |
±×¸®°í, ¸ðµç ¼Ò½º´Â CTF ¿É¼ÇÀ» Æ÷ÇÔµÈ »óÅ·Π¸®ºôµåµÇ¾î¾ß ÇÑ´Ù.
ÄÚµå: | # cd /usr/src
# make WITH_CTF=1 kernel
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DTrace»ç¿ëÀ» À§ÇÑ ÀÚ¼¼ÇÑ Áغñ °úÁ¤Àº http://www.freebsd.org/doc/en/books/handbook/book.html#DTRACE ¿¡¼
3. ¸î°¡Áö ¸í·É¾îÀÇ ¿É¼Ç Ãß°¡
1) top ¸í·É¿¡¼ -P ¿É¼ÇÀ¸·Î CPUº° Åë°Ô¸¦ º¼ ¼ö ÀÖ´Ù. ¸®´ª½º top¿¡¼ '1'¸¦ ´·¯À» ¶§¿Í °°Àº °ÍÀ¸·Î º¸¸é µÇ´Ù.
(ÀÌ ¿É¼ÇÀº FreeBSD 6.4¿¡¼µµ »ç¿ë °¡´É)
ÄÚµå: | last pid: 96507; load averages: 0.00, 0.00, 0.00 up 5+04:46:52 19:08:27
25 processes: 1 running, 24 sleeping
CPU 0: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
CPU 1: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
CPU 2: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
CPU 3: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
CPU 4: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
CPU 5: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
CPU 6: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
CPU 7: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
Mem: 12M Active, 7956K Inact, 37M Wired, 1088K Cache, 13M Buf, 1941M Free
Swap: 4096M Total, 4096M Free
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2) top ¸í·É¿¡¼ -a ¿É¼ÇÀ¸·Î ÇÁ·Î¼¼½ºÀÇ argument¸¦ º¼ ¼ö ÀÖ´Ù.
[ ¿É¼Ç »ç¿ëÀü ]
ÄÚµå: | PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
39948 coffeenix 1 44 0 8432K 2792K select 0 0:23 0.00% sshd
857 root 1 44 0 5880K 2372K select 1 0:04 0.00% sendmail
867 root 1 8 0 3212K 1036K nanslp 2 0:01 0.00% cron
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[ top -a ]
ÄÚµå: | PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
39948 coffeenix 1 44 0 8432K 2792K select 0 0:23 0.00% sshd: coffeenix@ttyp0 (sshd)
857 root 1 44 0 5880K 2372K select 1 0:04 0.00% sendmail: accepting connections (sendmail)
867 root 1 8 0 3212K 1036K nanslp 2 0:01 0.00% /usr/sbin/cron -s
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3) vmstat -P ¿É¼ÇÀ¸·Î CPUº° Åë°è¸¦ º¼ ¼ö ÀÖ´Ù. (ÀÌ ¿É¼ÇÀº FreeBSD 6.4¿¡¼µµ »ç¿ë °¡´É)
ÄÚµå: | # vmstat -P 1
procs memory page disks faults cpu0 cpu1 cpu2 cpu3
r b w avm fre flt re pi po fr sr da0 da1 in sy cs us sy id us sy id us sy id us sy id
0 0 0 82940K 891M 29 0 0 0 29 7 0 0 16 100 449 0 0 100 0 0 100 0 0 100 0 0 100
0 0 0 82940K 891M 1 0 0 0 0 0 0 0 7 117 370 0 1 99 0 0 100 0 3 97 0 0 100
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4) traceroute ¸í·É¿¡¼ -a¿É¼ÇÀ¸·Î AS numberµµ ÇÔ²² º¼ ¼ö ÀÖ´Ù.
5) arp ¸í·É¿¡¼ reject¿Í blackhole Å°¿öµå¸¦ Áö¿øÇÑ´Ù.
6) cp ¸í·É¿¡¼ -a ¿É¼Ç(archive mode)À» Áö¿øÇÑ´Ù. -RpP ¿É¼Ç°ú µ¿ÀÏ. ¸®´ª½ºÀÇ GNU cp ¿É¼Ç°ú µ¿ÀÏÇÏ´Ù°í º¸¸é µÈ´Ù.
4. /etc/sysctl.conf.local ¼³Á¤ ÆÄÀÏ
rc ½ºÅ©¸³Æ®(/etc/rc.d/sysctl)¿¡¼ /etc/sysctl.conf ·ÎµùÇÑ ÈÄ¿¡ /etc/sysctl.conf.local ¼³Á¤µµ ·ÎµùÇϵµ·Ï µÇ¾î ÀÖ´Ù.
µû¶ó¼ ¼¹öº° °³¹ú ¼³Á¤Àº sysctl.conf¸¦ ¼öÁ¤ÇÏÁö ¾Ê°í /etc/sysctl.conf.local¿¡ ³Ö¾îµµ µÈ´Ù.
5. truss ¸í·É
truss´Â ¸®´ª½ºÀÇ strace, ¼Ö¶ó¸®½ºÀÇ trussó·³ ÇÁ·Î¼¼½ºÀÇ ½Ã½ºÅÛ ÄÝÀ» ÃßÀûÇÑ´Ù. FreeBSD 6.x ¹öÀü¿¡¼´Â truss¸¦ »ç¿ëÇϱâ À§Çؼ ¾Æ·¡Ã³·³ process ÆÄÀϽýºÅÛÀ» /proc¿¡ ¸¶¿îÆ® ÇØÁà¾ß Çß´Ù. ±×·¯³ª FreeBSD 7.0ºÎÅÍ ´õÀÌ»ó procfs ÆÄÀϽýºÅÛ¿¡ ÀÇÁ¸ÇÏÁö ¾Ê±â ¶§¹®¿¡ mount_procfs ¸í·ÉÀ» »ç¿ëÇÒ ÇÊ¿ä¾øÀÌ ½Ã½ºÅÛ ÄÝÀ» ÃßÀûÇÒ ¼ö ÀÖ´Ù.
ÄÚµå: | # mount_procfs /dev/procfs /proc |
»ç¿ë¿¹) truss ls
-f ¿É¼ÇÀ» »ç¿ëÇϸé fockµÇ´Â ÇÁ·Î¼¼½º±îÁö ÃßÀûÇÒ ¼ö ÀÖ´Ù.
6. ºÎÆ®·Î´õÀÇ º¯°æÀ¸·Î USB¿¡¼ ºÎÆÃÇÒ ¼ö ÀÖ°í, GPT ·¹º§ µð½ºÅ©¿¡¼ ºÎÆÃÇÒ ¼ö ÀÖ´Ù.
* FreeBSD 7.0°ú Linux °£ÀÇ ¼º´É ºñ±³ ( 2008/03/11 )
* FreeBSD 7.0 »ç¿ë±â ( 2008/03/07 )
* FreeBSD 7.0 ¸±¸®Áî ( 2008/02/28 ) |
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