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Re: [PATCH] x86: Add --enable-rdtscp-in-benchtests

From: Siddhesh Poyarekar <siddhesh at gotplt dot org>
To: Szabolcs Nagy <Szabolcs dot Nagy at arm dot com>, "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: nd <nd at arm dot com>, Florian Weimer <fweimer at redhat dot com>, "libc-alpha at sourceware dot org" <libc-alpha at sourceware dot org>
Date: Wed, 24 Oct 2018 14:04:13 +0530
Subject: Re: [PATCH] x86: Add --enable-rdtscp-in-benchtests
References: <20181022223711.26910-1-hjl.tools@gmail.com> <87d0s1xcdu.fsf@oldenburg.str.redhat.com> <42aabf17-51f7-013f-32b2-1d1342f5a390@gotplt.org> <CAMe9rOq3-Ghvy4h-eXHkmba0BM2Yfn7rLb2OSxcz+Gu0Dgt8SQ@mail.gmail.com> <315d6dff-3a62-590f-df23-e1459d4032c0@arm.com>

On 23/10/18 5:24 PM, Szabolcs Nagy wrote:

target specific timers are not always available and their
results are hard to interpret compared to a standard api
that returns wall clock time in sane units.

Right, that is specifically why the USE_CLOCK_GETTIME option exists.It's not the default though because comparison between architectures isnot the dominant use case.


Siddhesh

References:
- [PATCH] x86: Add --enable-rdtscp-in-benchtests
  - From: H.J. Lu
- Re: [PATCH] x86: Add --enable-rdtscp-in-benchtests
  - From: Florian Weimer
- Re: [PATCH] x86: Add --enable-rdtscp-in-benchtests
  - From: Siddhesh Poyarekar
- Re: [PATCH] x86: Add --enable-rdtscp-in-benchtests
  - From: H.J. Lu
- Re: [PATCH] x86: Add --enable-rdtscp-in-benchtests
  - From: Szabolcs Nagy

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