proc freq

1 Proc Sort data = Data - Set 2 Out = Neat 3 Nodupkey 4 Dupout = Extraobs; 5 By Variable - 1 Variable - 2 ... Variable - N; 6 Run; Note: If out = is not specified, the sorted data is automatically replaced by the original dataset. the nodupkey option command SAS deletes repeated observations of variables in the by statement. dupout = option command SAS puts the deleted data into the specified data set.

CAT/proc/meminfoThe read kernel information is interpreted,The next article will analyze the code for reading this information. Memtotal:507480 KBMemfree:10800 KBBuffers:34728 KBCached:98852 KBSwapcached:128 KBActive:304248 KBInactive:46192 KBHightotal:0 KBHighfree:0 KBLowtotal:507480 KBLowfree:10800 KBSwaptotal:979956 KBSwapfree:941296 KBDirty:32 KBWriteback:0 KBAnonpages:216756 KBMapped:77560 KBSlab:22952 KBSreclaimable:15512 KBSunreclaim:

/** Kernel Programming test code** Copyright (C) Sun Mingbao * Dual licensed under the MIT and/or GPL licenses.**/#include #include #include #include #include #include Module_author ("Sun Mingbao Module_description ("Kernel Programming Test Code");Module_version ("1.0");Module_license ("Dual MIT/GPL");#define MODULE_NAME "Test"#define Write_console (FMT, args ...) \Do \{ \PRINTK (Kern_alert fmt,# #args); \} while (0)#define Dbg_print (FMT, args ...) \Do \{ \Write_console (module_name "_dbg:%s (%

doesn ' t does much but lets you run threads in the same process a bit quicker.Nx:no Execute bit. Prevents arbitrary code running via buffer overflows.Pni:prescott New Instructions aka. SSE3Vmx:intel Vanderpool Hardware Virtualization TechnologySVM:AMD "Pacifica" Hardware virtualization TechnologyLM: "Long Mode," which means the chip supports the AMD64 instruction setTM: "Thermal Monitor" Thermal throttling with IDLE instructions. Usually hardware controlled in response to CPU temperature.TM2:

much but lets you run threads in the same process a bit quicker.Nx:no Execute bit. Prevents arbitrary code running via buffer overflows.Pni:prescott New Instructions aka. SSE3Vmx:intel Vanderpool Hardware Virtualization TechnologySVM:AMD "Pacifica" Hardware virtualization TechnologyLM: "Long Mode," which means the chip supports the AMD64 instruction setTM: "Thermal Monitor" Thermal throttling with IDLE instructions. Usually hardware controlled in response to CPU temperature.TM2: "Thermal Monito

[Email protected] ~]# Cat/proc/self/statusName:catState:r (running)sleepavg:88%tgid:5783pid:5783ppid:5742tracerpid:0uid:0 0 0 0gid:0 0 0 0fdsize:256groups:0 1 2 3 4 6 10vmsize:6588 KBvmlck:0 KBvmrss:400 KBvmdata:144 KBvmstk:2040 KBVmexe:14 KBvmlib:1250 KBstabrk:0804e000 KBbrk:088df000 KBstastk:bfe03270 KBexeclim:0804c000Threads:1sigpnd:0000000000000000shdpnd:0000000000000000sigblk:0000000000000000sigign:0000000000000000sigcgt:0000000000000000capinh:00

1#include 2#include 3#include 4#include string.h>5 #defineMAXLINE 106 intMainvoid)7 {8 CharBuf[maxline];9 pid_t pid;Ten intstatus; Oneprintf"%%"); A while(Fgets (buf,maxline,stdin)! =NULL) { - if(Buf[strlen (BUF)-1] =='\ n') -Buf[strlen (BUF)-1] =0; the if(PID = fork ()) 0 ) -printf"Fork error\n"); - Else if(PID = =0){ -EXECLP (Buf,buf, (Char*)0); +printf"could not execute:%s\n", buf); -Exit127); + } A if(PID = Waitpid (Pid,status,0)) 0) atprintf"waitpid error\n"); - } -}

Today, when it comes to getting the total size of the available memory space on the phone, it is not advisable to find that the minimum supported version of the method is 16 by the following method.1 Public Static Longgettotalspace (Context ctx) {2 //1. Create a Activitymanager object3Activitymanager am =(Activitymanager)4 Ctx.getsystemservice (context.activity_service);5 //2 Getting an object that encapsulates memory information6Memoryinfo Memoryinfo =NewMemoryinfo ();//assigning val

Proc/version We usually use CAT/proc/version to obtain the version number of our kernel, but how is it generated? Let's see fs/proc/version. C. static int version_proc_show(struct seq_file *m, void *v){seq_printf(m, linux_proc_banner,utsname()->sysname,utsname()->release,utsname()->version);return 0;}static int version_proc_open(struct inode *inode, struct file *

2016.11.8Brother K has 2 servers using the Unison+inotify to reach the site folder synchronization effectToday suddenly found that inotify occupy a large CPU, you can use the top command to viewOpen the INotify log to see whyFind this errorFailed to Watch/opt; Upper limit on inotify watches reached!Please increase the amount of inotify watches allowed per user via '/proc/sys/fs/inotify/max_user_watches '.The main idea: inotify the number of default mo

Recently, when researching the load of Linux system, I have been exposed to some knowledge about CPU information, and share it with you. A lot of things have been learned by analyzing the parameters in the/proc/cpuinfo file.In the Linux operating system, the CPU information is loaded into the Cpuinfo file under the virtual directory/proc in the boot process, and we can view it through Cat/

There's been a lot of threads today. The problem of running out of virtual memoryThe PID of my application is 2558 to see the status at this time:[Email protected]:/proc/2558# cat StatusName:soniaState:s (sleeping)tgid:2558pid:2558ppid:2335tracerpid:0uid:0 0 0 0gid:0 0 0 0fdsize:256groups:0vmpeak:2812816 KBvmsize:2799304 KBvmlck:0 KBvmpin:0 KBvmhwm:799404 KBvmrss:790564 KB physical Memory use, here is 4G physical memory, is no problemvmdata:2721456 KB

if the destination IP of the packet is viewed the same as the source host IP address of the sending request, and this completes the request.For security reasons, the Linux system disables packet forwarding by default. The so-called forwarding is when the host has more than one network card, which receives a packet, according to the destination IP address of the packet sent to another network card, the network card according to the routing table continue to send packets. This is usually the func

Description of the main file in the/proc directory File or directory Name Description Apm Advanced Power Management Information CmdLine The file gives the kernel-initiated command line CPUinfo CPU Information Devices Devices that can be used (block devices/character devices) Dma Displays the DMA channel currently in use Files

Processor: The number of the logical processing cores in the system. For a single-core processor, the class is considered its CPU number, and for multicore processors it can be a physical core, or a virtual logical core using Hyper-Threading Technology Physical id: The label of a single CPU siblings: Number of logical physical cores for a single CPU Core id: The number of the current physical core in its CPU, which is not necessarily contiguous CPU Cores: The physical core number of the C

1. Proc file systemThe Proc file system is a mechanism for checking the kernel state in the user State. The file content is dynamically created, not on the disk, but in the memory, and power loss occurs.Cat/proc/meminfo/to view the current memory usageKernel description:[Cpp]Unsigned int low_ino;Unsigned short namelen;Const char * name;Mode_t mode;Nlink_t nlink;U

Https://stackoverflow.com/questions/1052589/how-can-i-parse-the-output-of-proc-net-dev-into-keyvalue-pairs-per-interface-uHttps://www.ibm.com/developerworks/cn/linux/1312_caojh_pythonlinux/index.html#!/usr/bin/pythonlines = open ("/proc/net/dev", "R"). ReadLines () Columnline = Lines[1]_, receivecols, Transmitcols = Columnline.split ("|") Receivecols = Map (lambda A: "Recv_" +a, Receivecols.split ()) Transm

Read the MTD partition table via the/PROC virtual file system: CAT/PROC/MTDMTD. Name = Raspi,. Size = 0x00400000 (4M). Erasesize = 0x00010000 (64K) . numeraseregions = 0Creating 6 MTD partitions on "RASPI":0x00000000-0x00400000: "All"0x00000000-0x00030000: "Bootloader"0x00030000-0x00040000: "Config"0x00040000-0x00050000: "Factory"0x00050000-0x00360000: "Kernel"0x00360000-0x003b0000: "DATA"through this struc

A few explanations on the content of the title:1. Proc Directory is a virtual file system that provides interaction for Linux user space and kernel spaceIt only exists in memory and does not account for actual flash or hard disk space2.the device in the/proc/devices/is generated when the driver is loaded3, thedevice under/dev/is generated by creating a device node, the user through the device node to access

about/proc/uptime The meaning of the two parameters in this file server work About the meaning of the two parameters in the/proc/uptime file: [Root@app ~] #cat/proc/uptime3387048.81 3310821.00 The first parameter is the time (in seconds) that represents the boot from the system to the present:3,387,048,.81 seconds = 39.2019538194444 days, indicating that th