Label:The ORACLE11G database was installed on the virtual machine and was originally intended to be used in a C/s + + learning operations database. The result was a big pit. It took two days from the installation of the Oracle database to the configuration of the proc compilation options. But it made me realize that I was weak: 1. There is not enough use of Linux commands and scripts. 2. The role of Linux folders is not well understood; (plan to add a
Proc report includes the print, means, tabulate, sort process, and data step functions:
I. Basic Syntax:
1 Data natparks; 2 infile 'C: \ myrawdata \ parks. dat '; 3 input name $1-21 type $ region $ museums camping; 4 run; 5 6/* ----- group and analyze SS variables (group: vertical; horizontal SS: horizontal) --- */7 * region as group and type as variant SS variable with sums; 8 proc report data = natparks n
/proc/cpuinfo File AnalysisAccording to the following content, we can easily know the current system about the CPU, CPU, the CPU is enabled Hyper-threading and other information. Logical Core: Cat/proc/cpuinfo | grep "Processor" | Wc-l//the ID of the logical processor(number of logical cores)Query systemNumber of CPUs: Cat/proc/cpuinfo | grep "Physical ID" | Sort
Demand1. Register the memory, the number of threads and other information on ZK for monitoring2. Statistical information to prepare for the next load balancing.RealizeThis article only resolves issue 1.From the online query, this information can be obtained from the proc file system, if you do not know proc, you can Google.The Internet has read proc information L
This article mainly explains the functions and differences of the three files in Linux/etc/fstab/etc/mtab/proc/mounts./etc/fstabOperations are aware of the files, if you want to set Mount disk and Dir to automatically load each time the boot, then the relevant information should be written to this file. This file is also read when the "mount-a" command is used to mount automatically. For example:LABEL=/HADOOP/9/HADOOP/9 ext3 defaults,noatime,nodiratim
proc Programming Embedded Sql:sql writing to a C language Program proc programming header file path app\xxx\product\11.2.0\dbhome_1\precomp\ Publicproc Programming Note that the proc compiler will also use the header file in the GCC compiler, so you need to configure it in the proc compiler, plus the system header file
Tags: FST which cells analysis log HTTP ATI Dex LinuxThis article mainly explains the functions and differences of the three files in Linux/etc/fstab/etc/mtab/proc/mounts.Transfer from http://haohaozhang.blog.51cto.com/9176600/1681827//etc/fstabOperations are aware of the files, if you want to set Mount disk and Dir to automatically load each time the boot, then the relevant information should be written to this file. This file is also read when the "
Operating system: Windows 7Database version: Oracle 10gVS Version: VS2010Preface: There are many ways to connect Oracle, here only proc as an example, explain how to connect Oracle, there is something wrong, I hope you crossing point out, learn to go together.One, install the client version of Oracle 10g.Note: Do the customer configuration, take this machine as an example: D:\oracle\product\10.2.0\client_2\NETWORK\ADMIN\tnsnames.ora file is# Tnsnames.
Failed to add File In proc system. Depressed. For more information, see Linux programming and kernel. The main problem is
[Root @ localhost proc_example] # make-C/usr/src/kernels/2.6.21-1.3194.fc7-i686 SUBDIRS = $ PWD modules
Make: Entering directory '/usr/src/kernels/2.6.21-1.3194.fc7-i686'
CC [M]/home/OS/module/proc_example/proc_example.o
/Home/OS/module/proc_example/proc_example.c: 8: 1: Warning: "MODULE_VERSION" redefinition
In a file containing/h
After upgrading MySQL from MySQL 5.1 to MySQL 5.6 in CentOS6.4 today, when using the NavicatPremium client management tool, I found that the smart prompt for writing SQL statements is not
After upgrading MySQL from MySQL 5.1 to MySQL 5.6 in CentOS6.4 today, when using the Navicat Premium client management tool, I found that the smart prompt for writing SQL statements is not
After upgrading MySQL from MySQL 5.1 to MySQL 5.6 in CentOS6.4 today, when using the Navicat Premium client manageme
For beginners, the Linux framework is too large, and many knowledge points need to do their own to understandDevice file, device number #ll-A/dev in each line you can see the device file, device number (primary, secondary)For each hardware device, the system kernel has the appropriate device driver responsible for handling it. In Unix, a device file is used to represent a hardware device, and each device driver is abstracted into the form of a device file , giving the application a consistent fi
Proc File system is to provide an interface to the user, so that users can view the system running some state information, let the user modify some parameters of the kernel, for example, PRINTK print level can be Proc to modifySYSFS File System,Sysfs is a ram-based filesystem initially based on Ramfs. It provides a means to export kernel data structures, their attributes, and the linkages between them to us
1548-Cannot load from mysql. proc. the table is probably updated upted solves The problem when a colleague sends an email saying navicat queries The database and reports The error 1548-Cannot load from mysql. proc. the table is probably successfully upted colleague checked The information and asked me if The database was upgraded. I just took over and did not know if I had been upgraded before, fix and upgr
Summarize the development, code, and process of LED lamp control mounted on/proc through one-day study.
1. driver code
#include
2. Drive makefile
obj-m:=led2.o CURRENT_PATH:=$(shell pwd) ARM_LINUX_KERNEL:=/opt/FriendlyARM/mini2440/linux-2.6.32.2 all: $(MAKE) -C $(ARM_LINUX_KERNEL) SUBDIRS=$(CURRENT_PATH) modules clean: rm -rf *.cmd *.o *.ko *.mod.c *.symvers *.order
3. Development Process
Compile the driver code and makefile. A
Author: Joseph (honggang Yang) @ dslab // ganggexiongqi@126.com
Date: 05-10-2011
Key words: Kernel thread, wait queue,/proc/sys/kernel entry, call usermode handler in kernel mode
========================================================== ================
In this section I will show you how to create two kernel threads.
One for process control, the other used to monitor kernel structure.
When kernel structure looks in trouble, the monitor wake up the
Collect/proc/maps file analysis in LinuxFrom: http://blog.csdn.net/wenxy1/archive/2008/12/23/3591243.aspx/Proc/View how the virtual address space of a process is used.The file has six columns:Address: Library address range in the processPermission: Virtual Memory permission, r = read, W = write, x =, S = share, P = private;Offset: address range of the database in the processDevice: the master and secondary
In Linux, what is the difference between the content in the/dev/directory and that in the/proc/file devices? I'mWhen I did an experiment on the board, I found that when I loaded the driver module to the Board, there were changes in the devices file, and there was no change at all under/dev, shouldn't it be a device connection under/dev/? Why?When the module establishes a device contact, it does not change under/dev?Thank you for your help !!!
The dev
Can be viewed according to/proc/pid/smap, the value of each of the following contents of the file, add, you canRSS: Physical memory (can also be seen from PS Axu)Swap: Virtual MemoryCat/proc/self/smapssize:44 KB Virtual Memory sizeRss:28 KB actual use of physical memory sizePss:28 KBshared_clean:0 KB page is changed, then is dirty, otherwise is clean, page reference count >1, is shared, otherwise privatesha
Learn notes and personal understanding, if there are errors, please correct me.
Warm tip: It is recommended to follow the numbering sequence in the comments to read the code
Test method: Cat/proc/abc_proc
echo arbitrary string >/proc/abc_pro (requires root permission)
/************************************************* example of using the Seq_file interface to implement a writable
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