http://wowubuntu.com/multiboot.html
可在選單上選擇用哪個 live iso開機
http://liveusb.info/dotclear/
Ubuntu版安裝
wget http://liveusb.info/MultiBoot-v3/install-depot-multiboot.sh.tar.bz2
bunzip2 install-depot-multiboot.sh.tar.bz2
tar xvf install-depot-multiboot.sh.tar
sudo ./install-depot-multiboot.sh
Windows下的工具
MultiBootISOs
http://www.pendrivelinux.com/boot-multiple-iso-from-usb-multiboot-usb/
2010年9月1日 星期三
2010年6月8日 星期二
[轉貼] hdparm 硬碟測速
http://blog.xuite.net/hsw520/st/28210945
http://007.vigortec.com/rewrite.php/read-31.html
-T ：測試暫存區 cache 的存取效能
-t ：測試硬碟的實際存取效能 （較正確！）
# hdparm -tT /dev/hdX
http://007.vigortec.com/rewrite.php/read-31.html
-T ：測試暫存區 cache 的存取效能
-t ：測試硬碟的實際存取效能 （較正確！）
優化Linux服務器硬盤性能的七個技巧http://www.tekbar.net/zh-tw/technology-innovation/linux-server-disk-performance-optimization-of-the.html
Linux server disk performance optimization of the seven skillshttp://www.tekbar.net/technology-innovation/linux-server-disk-performance-optimization-of-the.html
2010年6月3日 星期四
[盜貼]待比較改了哪些東東
視情況裝
透過 rpmforge 安裝yum install cronolog
或 透過下載原始碼安裝wget http://cronolog.org/download/cronolog-1.6.2.tar.gz
tar -zxvf cronolog-1.6.2.tar.gz
cd cronolog-1.6.2
tar -zxvf cronolog-1.6.2.tar.gz
cd cronolog-1.6.2
./configure make make install cd .. rm -rf cronolog-1.6.2*
2010年5月5日 星期三
apache 放ISO 檔下載測試記錄
[root@web-server ~]# mv CentOS-5.4-i386-bin-DVD.iso /var/www/html/
[root@client nfs-share]# wget http://192.168.0.251/CentOS-5.4-i386-bin-DVD.iso
--2010-05-05 10:21:50-- http://192.168.0.251/CentOS-5.4-i386-bin-DVD.iso
Connecting to 192.168.0.251:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 4000606208 (3.7G) [application/octet-stream]
Saving to: `CentOS-5.4-i386-bin-DVD.iso'
47% [================> ] 1,903,543,032 11.2M/s eta 3m 5s
[root@web-server ~]# top
top - 10:22:43 up 1:39, 1 user, load average: 0.16, 0.04, 0.01
Tasks: 108 total, 2 running, 105 sleeping, 0 stopped, 1 zombie
Cpu(s): 1.0%us, 1.3%sy, 0.0%ni, 67.0%id, 12.1%wa, 2.6%hi, 15.0%si, 1.0%st
Mem: 473860k total, 469564k used, 4296k free, 912k buffers
Swap: 1048568k total, 124k used, 1048444k free, 317740k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2448 apache 16 0 45864 7488 1504 R 2.0 1.6 0:02.04 httpd
4390 root 15 0 2176 1080 828 R 1.6 0.2 0:00.31 top
151 root 10 -5 0 0 0 S 0.3 0.0 0:00.35 kswapd0
[root@web-server ~]# top
top - 10:25:30 up 1:42, 1 user, load average: 0.24, 0.14, 0.04
Tasks: 108 total, 4 running, 103 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.3%us, 2.0%sy, 0.0%ni, 81.5%id, 4.6%wa, 2.3%hi, 8.9%si, 0.3%st
Mem: 473860k total, 469584k used, 4276k free, 708k buffers
Swap: 1048568k total, 124k used, 1048444k free, 321156k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2448 apache 16 0 45864 7492 1504 R 1.6 1.6 0:06.48 httpd
4390 root 15 0 2176 1080 828 R 1.6 0.2 0:02.53 top
151 root 10 -5 0 0 0 S 0.3 0.0 0:00.79 kswapd0
2096 root 18 0 22948 1352 596 S 0.3 0.3 0:00.23 pcscd
1 root 15 0 2052 668 572 S 0.0 0.1 0:00.24 init
[root@web-server ~]# top
top - 10:26:09 up 1:42, 1 user, load average: 0.18, 0.13, 0.05
Tasks: 108 total, 4 running, 103 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.0%us, 2.3%sy, 0.0%ni, 68.4%id, 9.9%wa, 2.0%hi, 16.4%si, 1.0%st
Mem: 473860k total, 470144k used, 3716k free, 720k buffers
Swap: 1048568k total, 124k used, 1048444k free, 321748k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2448 apache 15 0 45864 7492 1504 D 3.9 1.6 0:07.62 httpd
4390 root 15 0 2176 1080 828 R 1.0 0.2 0:03.00 top
151 root 10 -5 0 0 0 S 0.3 0.0 0:00.89 kswapd0
1 root 15 0 2052 668 572 S 0.0 0.1 0:00.24 init
[root@web-server ~]# top
top - 10:27:16 up 1:43, 1 user, load average: 0.22, 0.15, 0.06
Tasks: 108 total, 3 running, 104 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.3%us, 0.3%sy, 0.0%ni, 99.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 473860k total, 469568k used, 4292k free, 740k buffers
Swap: 1048568k total, 124k used, 1048444k free, 321232k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2324 mysql 15 0 133m 19m 3640 S 0.3 4.3 0:00.25 mysqld
4390 root 15 0 2176 1080 828 R 0.3 0.2 0:03.79 top
1 root 15 0 2052 668 572 S 0.0 0.1 0:00.24 init
[root@client nfs-share]# wget http://192.168.0.251/CentOS-5.4-i386-bin-DVD.iso
--2010-05-05 10:21:50-- http://192.168.0.251/CentOS-5.4-i386-bin-DVD.iso
Connecting to 192.168.0.251:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 4000606208 (3.7G) [application/octet-stream]
Saving to: `CentOS-5.4-i386-bin-DVD.iso'
47% [================> ] 1,903,543,032 11.2M/s eta 3m 5s
[root@web-server ~]# top
top - 10:22:43 up 1:39, 1 user, load average: 0.16, 0.04, 0.01
Tasks: 108 total, 2 running, 105 sleeping, 0 stopped, 1 zombie
Cpu(s): 1.0%us, 1.3%sy, 0.0%ni, 67.0%id, 12.1%wa, 2.6%hi, 15.0%si, 1.0%st
Mem: 473860k total, 469564k used, 4296k free, 912k buffers
Swap: 1048568k total, 124k used, 1048444k free, 317740k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2448 apache 16 0 45864 7488 1504 R 2.0 1.6 0:02.04 httpd
4390 root 15 0 2176 1080 828 R 1.6 0.2 0:00.31 top
151 root 10 -5 0 0 0 S 0.3 0.0 0:00.35 kswapd0
[root@web-server ~]# top
top - 10:25:30 up 1:42, 1 user, load average: 0.24, 0.14, 0.04
Tasks: 108 total, 4 running, 103 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.3%us, 2.0%sy, 0.0%ni, 81.5%id, 4.6%wa, 2.3%hi, 8.9%si, 0.3%st
Mem: 473860k total, 469584k used, 4276k free, 708k buffers
Swap: 1048568k total, 124k used, 1048444k free, 321156k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2448 apache 16 0 45864 7492 1504 R 1.6 1.6 0:06.48 httpd
4390 root 15 0 2176 1080 828 R 1.6 0.2 0:02.53 top
151 root 10 -5 0 0 0 S 0.3 0.0 0:00.79 kswapd0
2096 root 18 0 22948 1352 596 S 0.3 0.3 0:00.23 pcscd
1 root 15 0 2052 668 572 S 0.0 0.1 0:00.24 init
[root@web-server ~]# top
top - 10:26:09 up 1:42, 1 user, load average: 0.18, 0.13, 0.05
Tasks: 108 total, 4 running, 103 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.0%us, 2.3%sy, 0.0%ni, 68.4%id, 9.9%wa, 2.0%hi, 16.4%si, 1.0%st
Mem: 473860k total, 470144k used, 3716k free, 720k buffers
Swap: 1048568k total, 124k used, 1048444k free, 321748k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2448 apache 15 0 45864 7492 1504 D 3.9 1.6 0:07.62 httpd
4390 root 15 0 2176 1080 828 R 1.0 0.2 0:03.00 top
151 root 10 -5 0 0 0 S 0.3 0.0 0:00.89 kswapd0
1 root 15 0 2052 668 572 S 0.0 0.1 0:00.24 init
[root@web-server ~]# top
top - 10:27:16 up 1:43, 1 user, load average: 0.22, 0.15, 0.06
Tasks: 108 total, 3 running, 104 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.3%us, 0.3%sy, 0.0%ni, 99.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 473860k total, 469568k used, 4292k free, 740k buffers
Swap: 1048568k total, 124k used, 1048444k free, 321232k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2324 mysql 15 0 133m 19m 3640 S 0.3 4.3 0:00.25 mysqld
4390 root 15 0 2176 1080 828 R 0.3 0.2 0:03.79 top
1 root 15 0 2052 668 572 S 0.0 0.1 0:00.24 init
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