PermGen space issue when resolving eclipse startup pluginModify the startup parameters to add the following:-xms256m-xmx512m-xx:permsize=256m-xx:maxpermsize=512mThe example is explained as follows:-xms128m represents the JVM heap ( heap memory) with a minimum size of 128MB, the initial allocation-xmx512m represents the maximum allowable size of the JVM heap (heap memory) 256MB, on demand. Note: If-XMX is no
deployment and startup of Redis under Linux
Download installation media
Redis website Address: http://www.redis.io/Currently the latest version is redis-3.0.3.can access http://download.redis.io/releases/redis-3.0.3.tar.gz download and use SCP to upload to server,or download directly:wget http://download.redis.io/releases/redis-3.0.3.tar.gz
Unzip and compile
[Email protected]:/data$ tar-zvxf redis-3.0.3.tar.gz[Email protect
Linux system startup flowchart1, The following is an example of the CentOS6 series, which draws the Linux startup flowchart. 650) this.width=650; "Src=" Http://s1.51cto.com/wyfs02/M00/89/11/wKiom1gG2ALiRH1uAAaxOEmh5-k250.png-wh_500x0-wm_3 -wmp_4-s_2160565891.png "title=" Linux system start flowchart. png "alt=" wkiom1gg2alirh1uaaaxoemh5-k250.png-wh_50 "/>This article is from the "Useful Notes" blog, so be
The overall startup process for the Linux system is as follows:POST-to -BIOS (Boot Sequence)--MBR (bootloader)--kernel + INITRAMFS (or INITRD)--Mount Rootfs (RO) --/sbin/init Set the default run level--use/etc/rc.d/rc.sysinit to initialize the system--start and close the specified service, respectively--ctrl+alt+delete key combination--Start character terminal --Start the graphics terminal650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/75/
delay.The user can press and hold the SHIFT key at startup to force the menu to be displayed.During startup, the system checks the SHIFT key state. If the key state is not recognized, a short delay will allow the user to display the menu by pressing the ESC key.2.grub_hidden_timeout_quiet=trueTrue does not display a countdown. The screen will be blank.False when configured in Grub_hidden_timeout, there wil
1. Understanding Startup configuration Options[[email protected] ~]# cat/boot/grub/grub.conf # grub.conf generated by anaconda## Grub after making changes to this file# notice:you has a/boot partition. This means that# all kernel and initrd paths is relative to/boot/, eg.# root (hd0,0) # kernel /vmlinuz-version ro root=/dev/sda2# initrd/initrd-version.img#boot=/dev/sdadefault=0timeout=5Password--md5 $1$pfddv1$3x/xnizeysusf7fl9buuj/Splashimage= (hd0,0)
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/5B/59/wKioL1UG-g7yJZrsAAHAdgJ_bZY664.jpg "title=" Linux Process-start.png "alt=" Wkiol1ug-g7yjzrsaahadgj_bzy664.jpg "/>For the Linux startup process, it's a very complicated process.Let me introduce you here:1, when we press the power button, our BIOS① will check the hardware (CPU, video card, hard disk, optical drive, etc.) whether there is a problem, get the host hardware configuration, will
the user name, the task of the Getty program is complete! It then invokes the login program in an exec manner. The login program reads the user name and user password, and then reads the shadow file to verify that the user's password is correct. If the password is incorrect, login exits by calling exit, at which point the init process re-fork to repeat the above steps.If the password authentication succeeds, then the login program will set up some environment (such as setting working directory,
The problem of computer black screen is really more and more serious, recently have a bit of win8 system users and small series reflect that his home win8 system boot often encounter black screen phenomenon, how to solve it? In fact, small make up here to tell you that WIN8 system computer turned on the black screen has two kinds of situation, One is to see the logo of Windows, there is a direct black screen there is no image, in response to the two conditions of the different solutions, the fol
Use the Computer Task Manager to set up:
1, we first pull up the task manager of the computer, you can in the State bar under the computer or use ctrl+alt+.
2, then we click on the top of the launch status bar.
3, select the program you want to prohibit the start of the right button to prohibit. Again, we want to restore the boot and right-click to restore it.
Disable startup with new poison PA:
1, we first ope
The startup process for Windows includes the following phases:
Start Self test phase
This phase is mainly to read the BIOS, and then memory, CPU, hard disk, keyboard and other devices for self-test. This stage is displayed on the screen as the print information for the self-test.
On-Screen display: Print information for self-test
Initializing startup phase
This phase, depending on the boot sequence
The first time you disable some peripherals in WinXP, you can effectively reduce the number of peripheral drivers that you need to call in when you start your system, which speeds up your system because WinXP automatically scans for hardware changes at startup. First turn on the device's power supply, and then open the Device Manager window, click the Scan Hardware changes button in the toolbar, or right-click a disabled device, and select Enable on t
Usboot is a Windows2003 or XP under the U disk into the system startup disk software, then, how to use the usboot to make a U disk Startup disk?
1. When you run Usboot, the warning dialog box pops up and click OK.
2. Open Usboot main window, in the disk to select the operation of the USB stick, click on the USB stick before the U disk icon, will appear shortcut menu and select "hdd mode."
3
Many users reflect that their computers have been used for some time after system open machine becomes very slow, usually many users blame the problem on the system time and time, in fact, not so, if you have installed some software applications, and these software is set up to start automatically, Then the system boot speed slow is inevitable, want to increase the boot speed can be resolved by canceling a partial boot boot, under Windows system, we Run "msconfig" to open the boot management int
Win7 Too many system startup items cause load failure to change how to solve, below for everyone to share under the solution.
Method one, System setup
If this is due to system setup problems, you can set the system boot up, the user can set according to their needs which startup items do not need to load, which boot items can be loaded.
Method II, System account
The system's default account is t
USB disk to make the Startup disk method
Use a U disk to start easy disk is not very easy, first look at whether the motherboard support, U disk support. U disk if supported, then you can try this simple and universal USB disk to make the Startup disk method:
The first step, first of all, your motherboard support U disk startup, generally more than 815 motherbo
In recent years, with the popularity of U disk, many computer enthusiasts have said good-bye to the optical drive, instead of a U disk to install the system and maintain the computer. At present, U disk's main starting mode has three kinds of usb-zip, USB-HDD and Usb-cdrom. The first two ways can generally be used to make a general-purpose tool, and the Usb-cdrom method requires dedicated "U Disk production Tools" (U disk chip corresponding production tools) to achieve. And these methods have so
Attachment 1 Linux system startup processThe initial stageWhen we turn on the computer, the computer automatically reads the stored program from the BIOS of the motherboard (Basic input/output System). This procedure usually knows some hardware directly connected to the motherboard (hard disk, network interface, keyboard, serial port, and port). Most of the BIOS now allows you to start your computer by selecting one from a floppy disk, CD-ROM, or hard
http://blog.csdn.net/turkeyzhou/article/details/7619472 Java startup parameters are divided into three categories;The first is the standard parameter (-), all JVM implementations must implement the functions of these parameters, and backward compatibility;The second is the non-standard parameter (- x), the default JVM implements the functions of these parameters, but does not guarantee that all JVM implementations are satisfied, and does not guarantee
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