Alibabacloud.com offers a wide variety of articles about linux multicast example, easily find your linux multicast example information here online.
Examples of adding partitions using Fdisk;In this example we will add two 200M primary partitions, the others are extended partitions, we add two 200M-size logical partitions in the extended partitionCommand (M for help): P Note: Lists the partition table;disk/dev/sda:1035 MB, 1035730944 bytesHeads, Sectors/track, cylindersUnits = Cylinders of 16128 * 8257536 bytesDevice Boot Start End Blocks Id SystemCommand (M for help): N Note: Add partition;Comman
/2011/05/01/2033761.html everything seems very simple and very smooth, but the problem comes!! when I write a sample program (example program as follows, program reference: http://blog.csdn.net/robertkun/article/details/7885379) when I compile the above program, there are the following problems: Baidu and Google are no fruit, again confirm the installation seems to have no problem, with their own only in Linux
file can also be viewed directly, but the information format is not easily understood by humans, and we can install the Wincachegrind software to read it in a format. Download installation methods refer to the following:Download: http://sourceforge.net/projects/wincachegrind/After downloading the installation run, then click Tools->options, set working folder (php.ini Xdebug.profiler_output_dir value)This allows for a more intuitive view of the performance monitoring file information. Four,
"Top%wa Problem", then encountered top %si too high (more than 95% peak time) problem.%wa high, indicating disk is busy. For example, disk read and write times are very high.%si High, does it indicate soft interrupt busy? Does it also indicate that the number of soft interrupts is very high?In order to verify this problem, some tools for Linux monitoring interrupt have been found. At first find Oprofile, it
directory:Drivers Kconfig end Endmenu Add a row beforesource "drivers/alan_test/Kconfig"endmenuAdd a line to the end of Makefile under driversobj-$(CONFIG_ALAN_TEST) += alan_test/3. Make Menuconfig Add the newly-written module to the kernel:In turn: Device drivers-->Alan_test driver-->Alan_test Driver Comment * * *[*] Alan_test SupportExit Save Menuconfig4. Compile the kernel:Compiling with makeThe generated zimage (arch/arm/boot/zimage) is burned to the corresponding location of the De
Caffegit clone git://github.com/bvlc/caffe.git7. Installing CaffeCP Makefile.config.example Makefile.configBecause there is no GPU here, you need to set cpu_only:= 1 in the Makefile.config file to remove the comment.and then compile Make All Make Test make RuntestAfter installation we can try to run a lenet on the mnist.1. Get Mnist Data firstCD Caffe. /data/mnist/get_mnist. SH2. Then create the lenet, be sure to run the following command at the root of the Caffe, otherwise the "Build/exampl
differentiated.2. Modify the. bashrc fileThis method is more secure, it can control the use of these environment variable permissions to the user level, if you need to give a user permissions to use these environment variables, you only need to modify their personal user home directory of the. bashrc file on it.(1) Open the. bashrc file in the user directory with a text editor(2) At the end of the. bashrc file, add:Set java_home=/usr/share/jdk1.5.0_05 export java_home set path= $JAVA _home/bi
;650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M00/82/FC/wKioL1dn5YCA7tKSAADmKjA1gZs306.jpg-wh_500x0-wm_3 -wmp_4-s_2221077610.jpg "title=" 8.jpg "alt=" Wkiol1dn5yca7tksaadmkja1gzs306.jpg-wh_50 "/>Step Six: Restart the VSFTP server and set the self-boot.Service VSFTPD RestartChkconfig vsftpd onStep Seven: Landing test650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M01/82/FC/wKioL1dn5svT8jPUAABpGnvgJxQ249.jpg-wh_500x0-wm_3 -wmp_4-s_3204406539.jpg "title=" 10.jpg "alt=" Wkiol1dn5svt
no longer performed Setenfore save time after rebooting.Literary youth: Knocking at the command line in turn ...Setsebool-psamba_enable_home_dirs onSETSEBOOL-PSAMBA_EXPORT_ALL_RW onAfter that, then: getsebool-a | grep Samba One, you know .../ETC/INIT.D/SMB Restart (start)6. Set as self-starterChkconfig SMB on7. Whether the test was successfulLinux under: Input command # testparm appears similar;650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M00/82/E0/wKiom1djhJSw_8w9AACLdrTKzpA224.jpg-w
Working with listsI think the best way to become familiar with the core list feature is to look at some simple examples of material to better understand the chain list.Here is a sample. Include Create. Join. Delete and traverse the linked list. "Below for a explanation of how" the This is done. */tmp= List_entry (pos, struct kool_list, list);//Get Data structures including POS nodes Several Common Core inventory API implementations. The above case Linux
Device Array handle:0x0008 Error information handle:not provided total width:64 bits Data Width : Up to Bits size:4096 MB ..... My motherboard has 4 slots, with only one slot, with a 4096MB of memory plugged in.DiskView hard disk and partition distribution# lsblkname maj:min RM SIZE RO TYPE mountpointsda 8:0 0 465.8G 0 disk├─sda1 8:1 0 1gDisplay is intuitiveIf you want to see hard disk and partition details# fdisk-ldisk/dev/sda:500.1 GB, 500107862016 bytes25
[Root@xenserver-ds-monitor02 ~]# Once the partitions are ready, we can add the disk directly to the XenServer local storage. [Root@xenserver-ds-monitor02 ~]# Xe Host-listUUID (RO): e46c7c34-5d62-4b73-93d2-1dae3a47eb47Name-label (RW): Xenserver-ds-monitor02Name-description (RW): Default Install[Root@xenserver-ds-monitor02 ~]# Xe sr-create content-type=user device-config:device=/dev/sdb1 host-uuid= e46c7c34-5d62-4b73-93d2-1d9ae3a47eb47 name-label= "Local storage 2" Shared=false TYP
*timer){KT = Ktime_set (1, 10);PRINTK ("------I am in Hrtimer-----\ n");Hrtimer_forward (Timer, Timer->base->get_time (), kt);return hrtimer_restart;}static int __init test_init (void){Pr_info ("Timer resolution:%lu\n", tick_nsec);KT = Ktime_set (1, 10); /* 1 sec, nsec */Hrtimer_init (timer, Clock_monotonic, Hrtimer_mode_rel);Hrtimer_set_expires (timer, kt);Hrtimer_start (timer, KT, Hrtimer_mode_rel);Timer.function = Hrtimer_handler;PRINTK ("\ n--------test start---------\ n");return 0;}static
I. Introduction to the ConceptNetwork programs are divided into server-side programs and client programs. The service side is the one that provides the service, and the client is the party requesting the service. But the reality is that some programs of the client, server-side role is not so obvious, that is, mutual client and service side. When we write a network program, it is generally based on TCP protocol or UDP protocol for network communication. TCP: (Transfer control Protocol) transmissi
59.5G 0 part ├─vg_qdy-lv_root (dm-0) 253:0 0 50G 0 LVM/ ├─vg_qdy-lv_swap (dm-1) 253:1 0 3.9G 0 LVM [swap] └─vg_qdy-lv_home (dm-2) 253:2 0 5.7G 0 lvm/home Sr0 11:0 1 1024M 0 rom #df-h # View each partition usage Du-sh # View the size of the specified directory Filesystem Size used Avail use% mounted on /dev/mapper/vg_qdy-lv_root 50G 3.7G 44G 8%/ Tmpfs 1.9G 0 1.9G 0%/dev/shm /DEV/SDA1 485M 39M 421M 9%/boot /dev/mapper/vg_qdy-lv_home 5.6G 239M 5.1G 5%/Home #fdisk-L # View all
0. PrefaceStart by learning C language and start to contact makefile slowly. Consulted a lot of makefile information but the total feeling did not really master makefile, assume that oneself write a makefile always think very laborious. So deliberately using the blog to summarize the relevant knowledge of makefile. The detailed use of the makefile is illustrated by the sample example.The blog is trying to be easy. The makefile is illustrated by the sample ex
bytes, 1 blocks = 512 bytes =512*8 (bit)-exec executes the command ls-l the found results to show the details: +10=10 files larger than 10 blocks-10 files smaller than 10 are examples of files that look for file sizes of 6 bytes:[[email protected] share]# find. -type f-size 6c-exec ls-l {} \;-rw-r--r--1 root root 6 July 23:19./bbb5[Email protected] share]# ls-lTotal dosage 28004-rwxrwxrwx 1 root root 54 July 23:23 Aaa.txt-rw-r--r--1 root root 6 July 23:19 BBB-rw-r--r--1 root root 9 July 23:21 c
Alarm (time), after execution, tells the kernel to let the kernel send a timed signal to the process after a timeframe, and then the process captures the signal and processes it;The pause () function pauses the process to give up the CPU, but the pause of the function and the sleep of the previous sleep function are interrupted sleep, which means that the interrupt signal is received and thenThe statement after the pause () and sleep () functions are executed directly when the process is re-exec
: To add the appropriate library,-LRT $./gcc-o Test AIO_SIGNAL.C-LRT$./test01h2ell3oread=hello4^C Example 2: #include #include #include #include #include #include #include void Async_read (sigval_t val){struct AIOCB *ptr =(struct AIOCB *) val.sival_ptr;printf ("read=%s", (char *) ptr->aio_buf);}int main (void){struct AIOCB CB;Char sbuf[100];int ret;Bzero (AMP;CB, sizeof (CB));cb.aio_fildes = 0;Cb.aio_buf = Sbuf;
Let's look at the example of a parent process sending a kill signal to a child process:#include Macro that determines the status of the child process exit:the end state of the child process is returned and stored in status, with several macros at the bottom to determine the end conditionwifexited (status) is a non-0 value if the child process ends normally. wexitstatus (status) Gets the end code returned by the child process exit (), typically using w
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
