On Mar 26, 2014, at 9:07 AM, Paul Eggert <egg...@cs.ucla.edu> wrote:
> Pavel Raiskup wrote: >> should we take the detection of /dev/null output >> as an OK exception? > > Since bytes sent to /dev/null are discarded, it seems like an allowable > optimization to not bother to send them if one discovers that the output is > /dev/null. As long as it still reads the input files. Whether it's a good idea or not, people do sometimes "prime" disk caches by running tools such as tar with output to /dev/null. Tim
