The value of TIMEFORMAT parameter is used as a format string specifying how the timing information for pipelines prefixed with the time reserved word should be displayed. usr/bin/time -f "CPU Percentage: %P" find /etc/ -type f -iname "a*.conf"ĬPU Percentage: 76% Understanding TIMEFORMAT used by bash’s buitin time usr/bin/time -f "CPU Percentage: %P" grep vivek /etc/passwd usr/bin/time -f "CPU Percentage: %P" command See percentage of CPU used by your command: $ /usr/bin/time -f "%E real,%U user,%S sys" /path/to/script $ /usr/bin/time -f "%E real,%U user,%S sys" sleep 2 In this example, show just the user, system, and total time using format option: Using time command on Linux or Unix with formatting Number of times that the program was context-switched voluntarily, for instance while waiting for an I/O operation to complete. Number of socket messages sent by the process.Īverage resident set size of the process, in Kilobytes. Number of socket messages received by the process. Number of signals delivered to the process.Īverage unshared stack size of the process, in Kilobytes. Number of times the process was context-switched involuntarily (because the time slice expired).Įlapsed real (wall clock) time used by the process, in seconds. This is a per-system constant, but varies between systems. Number of times the process was swapped out of main memory.Īverage amount of shared text in the process, in Kilobytes. Total number of CPU-seconds that the process used directly (in user mode), in seconds. Total number of CPU-seconds used by the system on behalf of the process (in kernel mode), in seconds. Thus the data in the page is still valid but the system tables must be updated. These are pages that are not valid (so they fault) but which have not yet been claimed by other virtual pages. Number of minor, or recoverable, page faults. This is just user + system times divided by the total running time. Number of file system outputs by the process. Maximum resident set size of the process during its lifetime, in Kilobytes. Number of file system inputs by the process.Īverage total (data+stack+text) memory use of the process, in Kilobytes. These are faults where the page has actually migrated out of primary memory. Number of major, or I/O-requiring, page faults that occurred while the process was running. Name and command line arguments of the command being timed.Īverage size of the process’s unshared data area, in Kilobytes.Įlapsed real (wall clock) time used by the process, in minutes:seconds. $ /usr/bin/time -f 'FORMAT' -p command Use FORMAT as the format string that controls the output of time Table 1: Formatting the output of /usr/bin/time FORMAT You can control time command output format using -f FORMAT as follows:
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