When using the GPU for computing, such as running deep learning code, we may want to be able to detect the use of video memory in real time, but Linux generally does not bring its own monitoring of existing tools. Nvidia comes with a NVIDIA-SMI command-line tool that shows memory usage, but we can't enter this command every 10s. It's time to use the Watch command.About Watch commandWhat does watch do? Look at what the system says.1 $ whatis Watch 2 Wa
Tags: CPU monitoring shell Linux AutomationRequirements: accurately monitor CPU with top commandPreparation knowledge: Top use, basic awk, DC (default bash shell does not support decimal operations)The script is as follows[[emailprotected] scripts]# cat cpu.sh #!/bin/bash -# top -n 参数指定运行次数,1代表运行一次即停止,不再等待top数据更新,使用awk指定分割符,提取数据cpu_us=`top -n 1 | grep ‘Cpu(s)‘ | awk -F‘[" "%]+‘ ‘{print $2}‘`cpu_sy=`top -n 1 | grep ‘Cpu(s)‘ | awk -F‘[" "%]+‘ ‘{print $4
(I) download
Nethogs-0.8.0.tar.gz
Before installation, you may needYum install ncurses *
(Ii) Role
Different from other statistics and monitoring of network card Traffic, nethogs is a bit special and can monitor eachNetwork bandwidth usage of processes
(Iii) UseThis program requires the root permission. By default, the eth0 Nic is monitored. If multiple NICs exist, you must specifyNethogsNethogs eth1Net
in the monitored table. Procedure Get_all_tables (v_owner In Varchar2 ) Is Begin Insert Into Table_usage(Owner, Table_name, Is_using, Modify_date) Select A. Owner, A. table_name, ' N ' -- The default value is N. , Sysdate From All_all_tables Where A. Owner = V_owner And A. Status = ' Valid ' ; Commit ; End Get_all_tables;
Then, a trigger is created for each table. When an insert operation is performed on the specified table, table
(I) downloadNethogs-0.8.0.tar.gzBefore installation, you may need to install yum install ncurses *(Ii) RoleDifferent from other statistics and monitoring of network card Traffic, NetHogs is a bit special and can monitor the network bandwidth usage of each process(Iii) UseThis program requires the root permission. By default, the eth0 Nic is monitored. If multiple NICs exist, you must specifyNethogsNethogs e
70% alarm).load_warn=0.70#当单个核心15分钟的平均负载值大于等于1.0 (that is, a single integer greater than 0), direct e-mail alerts, if less than 1.0 to do two comparisonsif (($average _int > 0)); Thenecho "$IP Server 15-minute system average load is $average_load, exceeding the alert value of 1.0, please immediately handle!!! " | Mutt-s "$IP Server system load critical alarm!!! "Fuquanjun@xxx.comElse#当前系统15分钟平均负载值与告警值进行比较 (1 is returned when the alarm value is greater than 0.70, and 0 is returned when less than
Notificationlistenerservice is a service that is tuned through the system, and when an application initiates notification, the system will call back the action and information of the notification to Notificationlistenerservice.Before inheriting the Notificationlistenerservice service to implement its own logic, it is necessary to include the following code in the configuration file for permission.In this way, the switch to turn on the service can be found in the system setup, taking MIUI as an e
=" http://s3.51cto.com/wyfs02/M02/6E/F6/wKiom1WM8gPQQRyZAALAZZkB_o8110.jpg "title=" 7.png " alt= "Wkiom1wm8gpqqryzaalazzkb_o8110.jpg"/>Some of the options shown. Here we select information such as CPU memory load mount points. Click SaveClick New Graphs on the left to enter650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/6E/F3/wKioL1WM89DCSPbBAALfGez6nQw381.jpg "title=" 8.png " alt= "Wkiol1wm89dcspbbaalfgez6nqw381.jpg"/>The page shown in the . Tick the item you want to draw. Click Crea
Tags: Linux grab tcpdump netstat view network status PS System State free memory usage Iostat disk performanceMonitoring IO Disk Performance命令如下:iostat -x 磁盘使用iotop 磁盘使用
%util look at the health of a hard drive,
Installing Iotop[[emailprotected] ~]# yum install -y iotop
Iotop command, mainly to see the io> column, see the performance of the disk
Free to view memory usage
has been using Jconsole to monitor the JVM, the graphical interface is easy to use, recently because the need to operate under the pure Linux, so summed up the Linux monitoring JVM under the example, this time the main use of the Jstat tool,The meaning of each parameter:Jstat-class PID: Displays the number of loaded classes, and the amount of space that is occupied.Jstat-compiler PID: Displays information such as the number of real-time VMS compiled.J
Any partition used to 90% send a message to the specified recipient, to 95% on the subject of the message Warning (warning), instructions to send mail program email#!/bin/bash#Updated: 2008-03-03 PM by:leif ([email protected])Email=/usr/local/bin/email/bin/df-h >/tmp/df.txtUse= ' Df-h | Grep-o [0-9]*% | Grep-o ' [0-9]\+ 'For I in $USEDoif (($i > 95))Then$EAMIL-S "WARNING low disk space for $i" [e-mail protected] BreakFiif (($i > 90))Then$EMAIL-S "Low disk space for $i" [EMAIL protected] fiDone/b
Zabbix Monitor nginx,php-fpm and MySQL memory usage and number of processes with custom scriptsFirst, add a script under the Zabbix script directory and write the following code#!/bin/bash#license: GPL#mail: [Email protected]#date: 2015.04.16Top-bn1>/usr/local/zabbix-2.4.4/scripts/process.logLog=/usr/local/zabbix-2.4.4/scripts/process.logPHP_FPM () {grep "PHP-FPM" $LOG |awk ' {sum+=$6}; End{print sum} '}Php
$} '#设置交换分区的告警值为20%swap_warn=0.20if (($swap _used! = 0)); Then#如果交换分区已被使用, calculates the percentage of the total of the current remaining swap partition free, in decimal notation, to complement an integer digit before the decimal point 0Swap_per= ' echo ' scale=2;b= $swap _free/$swap _total;if (length (b) ==scale (b)) print 0;print B "|BC"#当前剩余交换分区百分比与告警值进行比较 (1 is returned when the value is less than 20%, and 0 is returned if it is less than)swap_now= ' expr $swap _per \ #如果当前交换分区使用即剩余小于20% (
Recently encountered a project, front end with Apache HTTTPD for publishing (80 port), through the dual-machine load balancer forwarding to the back end of two tomcat processing (8081 and 8082 ports), now need to monitor the situation of these three ports, once down the need to be able to immediately alarm processing. Batch system monitoring is a good use of nagios software to achieve, such a small project to install a Nagios software, a bit cumbersom
One of the best known advantages of Java technology is that, unlike other languages such as C programmers, Java programmers do not have to be responsible for daunting memory allocations and releases. The Java runtime can manage these tasks for you. Each instantiated object automatically allocates memory in the heap, and the garbage collector periodically reclaims the memory occupied by objects that are no longer in use. But you're not completely out of it. You still need to
In order to more easily know the memory usage on the server, and according to the memory use size to restart the service, I only the whole fault alarm, if you want to automatically restart the service, we will have to modify their own.
Script content:
It's written, it's not very good-looking, and it's not very good with awk, it's not going to be output in awk, so use a long string of characters to improve
The code is as follows
Copy
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