It measures Internet Bandwidth speed bidirectionally. The application is basically a script developed in the Python programming language. Here comes an application “ Speedtest-cli” that removes such bottlenecks and lets you test the speed of Internet connection from the command line. Another bottleneck of such web browser-based speed testing is that you can’t schedule the speed testing at regular intervals. What about a headless server, where isn’t any web-based browser and the main point is, most of the servers are headless. It also uses a Flash player to produce graphical results. It loads JavaScript in the web browser and then selects the best server based upon ping and outputs the result. What do we do about this? Go to websites like and begin the test. It is available for most Linux distributions, but sometimes needs to be installed from repositories.We always need to check the speed of the Internet connection at home and office. Not used in this example, but -c can report wait IO percentage, which in most cases is related to the CPU waiting for data from the disks. The display is updated every second, but only once per 60 seconds a new line will be started. -D to specify the exact devices to reportĦ0 to average over 60 seconds.system-dsk/total-dsk/sda-dsk/sdb-dsk/sdc-dsk/md1. It can show totals and statistics per disk and even md-devices (RAID), also can use colors for better overview: $ dstat -tdD total,sda,sdb,sdc,md1 60 Some other options that can show disk usage in trending graphs is munin and cacti. Linux 3.5.2-x86_64-linode26 (linode) _x86_64_ (4 CPU)Īvg-cpu: %user %nice %system %iowait %steal %idleĭevice: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util To see current utilization broken out by device, you can use the iostat command, also from the sysstat package: $ iostat -x 1 Using the Debian package, you must enable the stat collector via the /etc/default/sysstat config file after package installation. The %iowait is the time spent waiting on I/O. My personal favorite is the sar command from sysstat. For disk I/O trending there are a few options.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |