On Thu, Feb 21, 2019 at 08:10:00PM +0700, Duy Nguyen wrote:
> On Thu, Feb 21, 2019 at 2:41 AM Junio C Hamano <gitster@pobox.com> wrote:
> > Another mention of /dev/zero appears in t/helper/test-sha1.sh (not
> > to be confused with t/helper/test-sha1.c).  This seems to be run
> > only with an explicit "make -C t/helper check-sha1" request, so
> > perhaps nobody on your platform ran it to get hit by it.  I wonder
> > if anybody runs this on any platform, to be honest, though.
> 
> I vaguely remember Brian added something to test SHA-512 performance
> but I can't find it. Maybe when he adds something (if it's not there
> already) we can retire this script, or update it to check sha-512 too.

Doing git blame on that script seems to show that it was written mostly
by Junio. I think you may be thinking of test-tool hash-speed, which can
be used to benchmark a hash implementation. That's what I used for most
of my testing.

We may not need both anymore, though.
-- 
brian m. carlson: Houston, Texas, US
OpenPGP: https://keybase.io/bk2204