![]() W - Show who is logged on and what they are doing. ![]() Top - Display a sortable, continually-updated list of processes. Ps - Report the status of a process or processes. That is, 70% of the current processes will be forced to wait at any given time. For example, if the average CPU load is 1.70, the CPU is taxed at 170%. Option s is used to get the starting time/specified time when the system started has been running. ![]() mistersubhaserver-1 uptime -p up 29 weeks, 4 days, 11 hours, 1 minute. A number greater than 1.00 indicates that the CPU has been asked more than it can do in real time, and some tasks will wait for CPU time. Just to make sure you get the uptime in human-readable format, you can use option p. The number represents a percentage of full CPU load, where zero is no load, and 1.00 is full load. The average CPU load for the last 1, 5, and 15 minutes is 0.28, 0.45, and 0.38, respectively. Three user sessions are active on the system. The system has been up for 146 days and 34 minutes. The following is a breakdown of what the above output means. Information about who is currently logged on.ĭisplays system uptime information. Load averages are not normalized for the number of CPUs, so a load average of "1" means a single CPU system is loaded all the time while on a 4 CPU system it means it was idle 75% of the time. The averages are taken over the three time intervals. A process in uninterruptible state is waiting for some I/O access, eg waiting for disk. A process in a runnable state is either using the CPU or waiting to use the CPU. System load averages is the average number of processes that are either in a runnable or uninterruptible state. Linux uptime is an important metric that shows how long the system has been running or how much time has passed since the system last rebooted. Sample outputs: Fig.02: Determine the duration of execution of a particular command. Let us run date command on OS X or FreeBSD Unix based system to find out the resources utilized by the date command during execution: /usr/bin/time -l date. The uptime information is the same information contained in the header line displayed by w. uptime is one of the basic Unix commands which allows you to quickly confirm how long your Unix system has been up and running since it was last rebooted or. Fig.01: Determine the duration of execution of a particular command on Linux with resource utilization. The system load averages for the past 1, 5, and 15 minutes.It is never assumed a good point to change modification times. Checkout this link Utime failed: Operation not permitted. This may happen when the user PHP runs as isn't the owner of the cache files. Try to clear the cache files and recreate them with the PHP user as the owner. How many users are currently logged on. Updating file modification time fails unless issued by the owner.Uptime gives a one-line display of the following information:
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