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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

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

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

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

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

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

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

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

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