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Annotation of researchv10dc/dist/man/v4/man1/time.1, revision 1.1.1.1

1.1       root        1: .th TIME I 8/16/73
                      2: .sh NAME
                      3: time \*- time a command
                      4: .sh SYNOPSIS
                      5: .bd time
                      6: command
                      7: .sh DESCRIPTION
                      8: The
                      9: given command is executed; after it is complete,
                     10: .it time
                     11: prints the elapsed time during the command, the time
                     12: spent in the system, and the time spent in execution
                     13: of the command.
                     14: .s3
                     15: The execution time can depend on what kind of memory
                     16: the program happens to land in;
                     17: the user time in MOS is often half what it is in core.
                     18: .sh BUGS
                     19: Notice that
                     20: .bd "time x >y"
                     21: puts the timing information into
                     22: .it y.
                     23: One can get around this by
                     24: .bd "time sh"
                     25: followed by
                     26: .bd "x >y."
                     27: .br
                     28: Elapsed time is accurate to the second,
                     29: while the CPU times are measured
                     30: to the 60th second.
                     31: Thus the sum of the CPU times can be up to a second larger
                     32: than the elapsed time.

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