issues with 'time' command

I was trying to time the execution time of an application by using this '/usr/bin/time -p ./a.out'. This is returning 'command exited with non-zero status 1' but it is giving me the timing information. How c开发者_JS百科an I get rid of this error. I know that this error code is related to the 'time' command.

From the manual page of time:

If COMMAND exits with non-zero status, time displays a warning message and the exit status.

Just use the "--quiet" option, $ man /usr/bin/time:

--quiet: 
              Do not report the status of the program even if it is different from zero.