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Monitoring IO Performance | Free Command |PS Command | View network status |linux under Grab Bag

10.6 Monitoring IO Performance[[emailprotected] ~]# iostat -xLinux 3.10.0-514.el7.x86_64 (aminglinux-001) 2018年01月22日 _x86_64_ (2 CPU)avg-cpu: %user %nice %system %iowait %steal %idle 4.87 0.00 8.42 14.51 0.00 72.20Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %utilsda 0.01 0.74 32.95 10.74 901.28 80.73 44.95 1.19

2018.5.7 seven weeks Two lessons (monitor IO disk performance, free memory usage, ps,linux under grab packet)

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

20170507Linux seven weeks two lessons IO monitor free PS network status grab

Tags: freepsnetstattcpdumpseven weeks two sessions (May 7)10.6 Monitoring IO Performance10.7 Free Command10.8 PS Command10.9 Viewing network status10.10 Linux under Grab BagExtended TCP three-time handshake four times wave http://www.doc88.com/p-9913773324388.htmlTshark several usages: http://www.aminglinux.com/bbs/thread-995-1-1.htmlMonitoring IO Performanceios

Monitor IO performance, free command, PS command, view network status, Linux under Grab package

Tags: monitoring io performance FREE Command PS command View network status Linux under Grab BagMonitoring IO PerformanceIntroductionThe Iostat is primarily used to monitor the IO load on the system device, iostat the statistics from the start of the system startup when the first run, and then running Iostat displays s

Ten (2) nload command, monitor IO performance, free command, PS command, netstat view network status

nload Command (view network card traffic, with Sar-n DEV)(The system does not install this toolkit by default, yum install-y nload, install nload before installing epel-release)Use Nload to view network card information, you can see access to the network card information, press the Q key to exit.Monitoring IO Performance (disk)Installation: Sysstat package will be installed with Iostat (Iostat and SAR belong to a package)Iostat-x%util high value (insu

10.6-10.10 Monitoring IO Performance free Command PS Command View Network Linux under Grab Bag

Tags: io command free command PS command netstat tcpdump seven weeks two sessions (March 20)10.6 Monitoring IO Performance10.7 Free Command10.8 PS Command10.9 Viewing network status10.10 Linux under Grab bag Extended TCP three-time handshake four times wave http://www.doc88.com/p-9913773324388.htmlTshark several usag

Monitor IO performance, free command, PS command, view network status, Linux under Grab Bag

busy. The number of concurrent connections to a website is how many clients are attached at the same time. Linux under Grab Bag Grab Bag Tool tcpdump There is no need to install this command: Yum install-y tcpdump Specify the NIC name Tcpdump-nn-i ENS33 After running the above command, there will be a dense string of strings, before pressing CTRL + C, these strings have been brushing the screen, the faster the brush screen indicates more p

Monitoring IO Performance/free Command/ps command/view network status/linux grab the packet

Tags: http share sed roc wireshark res cause refresh informationMonitoring IO PerformanceUse the Iostat command to view disk usage [Email protected] ~]# iostat-x Here we focus on util This column,util is a percentage of the display, if the larger the value of your hard disk is more busy, this will be the reason for your system to become slowUse the iotop command to see if the process uses a large diskYou first need to install this comman

10.6 Monitoring IO Performance 10.7 free command 10.8 PS Command 10.9 View network status 10.10 Linux under Grab Bag

DISK read:0.00 b/S | Actual DISK write:0.00 b/STID PRIO USER disk READ disk WRITE swapin io> COMMAND1 BE/4 root 0.00 b/S 0.00 B/s 0.00% 0.00% SYSTEMD--switched-root--system--deserialize 21 Free Free to view memory usage[Email protected] ~]# free-hTotal used free

Monitor IO performance, free command, PS command, view network status, Linux under Grab package

state of the process).STAT (Status of the process) is:D cannot be interrupted.R (run) running process (CPU is used within a time period).The S (sleep) process may be paused and will be activatedT paused process (CTRL + Z paused process)+ Foreground ProcessZ Zombie ProcessN Low-priorityMemory is locked in memory pagingS master ProcessL Multithreading ProcessPS aux usage: see if a process is running (it has been used once) to see if top is runningps aux |grep topView network StatusNetstat viewing

IO performance, free, PS, view network status, Linux under Grab packet

One: Monitoring IO performanceIostat-x disk usageThe last column indicates that the time taken for the disk is longer thanIotop disk usageTwo: Free commandFrom left to right, total size, size used, remaining sizeThe remainder of the available=free+buffers/cachedTotal=userd+free+buffers/cachedThree: PS commandView syste

Linux System Management Preliminary (ii) IO, free, PS, netstat command editing

10.6 Monitoring IO Performance10.7 Free Command10.8 PS Command10.9 Viewing network status10.10 Linux under Grab BagFirst, Iostat and Iotop commandIostat command and Iotop, command to see the system disk work, timely discovery of disk problems, these two tools are not the system comes with, the need for Yum installationWhere the Iostat command is in the same (SYSSTAT) package as the SAR command mentioned in

Monitor IO performance, free, PS commands and Netstat commands, grab kit Tools Tcpdump,tshark

I. Monitoring IO performanceIostat-x Focus on%utilIotop to see which process is reading and writingIi. free command (view memory usage)-M-H-GBuff buffer (CPU processed data > memory (Buff) > Disk)Cache caching (Disk > Memory (cache) >CPU processing data)Formula: Total= used + Free +buff/cacheAvaliable contains free and

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