Thanks for your reply, Its clear for me now.
I actually want to monitor time required for tar to read all files in given hierarchy and do not want it to create archive, so i redirected output to /dev/zero, Because when i redirect output to /dev/zero it opens and reads the file but do not create any archive. Is this the correct way to do? Will i get correct time reading which i intend to take? Thanks, Shreyas On Fri, Feb 20, 2009 at 4:50 PM, Sergey Poznyakoff <[email protected]> wrote: > shreyas waghmare <[email protected]> ha escrit: > > > If my information and understanding above is right, then why am i > > getting these different time when i perform tar on same hierarchy? > > GNU tar explicitly checks if the archive is beign written to /dev/null, > and if so, it does not do any real archiving. That is, it does not > actually open and read any files. This behavior is documented in > > http://www.gnu.org/software/tar/manual/html_section/file.html#SEC99 > > > I want to measure performance in terms of time required to perform tar > > on a given hiearchy. so I am not sure which command is correct. > > In that case, create a real archive on the file system and delete it > after measuring is done. > > Regards, > Sergey > -- Shreyas Waghmare
_______________________________________________ help-tar mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-tar
