grep with --extended-regexp much slower on Ubuntu 16.04

[Karl Auer]

On Thu, 2018-02-08 at 16:31 -0400, Duane Whitty wrote:
> On 18-02-08 12:42 PM, Brian Bird wrote:
> > I've noticed Ubuntu 16.04LTS seems to run greps with "-extended-
> > regexp" much slower than Ubuntu 14.04LTS. I can reproduce this on
> > the same hardware simply by re-installing with the relevant
> > operating system.
> For testing purposes I'd recommend generating the random text ahead
> of time and thereby having the same input for the test on both
> platforms.

Ah. Oops. Yes, What he said :-)

Regards, K.

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Karl Auer (kauer at biplane.com.au)
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