From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
To: Alexander Monakov <amonakov@ispras.ru>
Cc: gcc-help@gcc.gnu.org, stephane.glondu@inria.fr,
marc.glisse@inria.fr, sibid@uvic.ca
Subject: Re: slowdown with -std=gnu18 with respect to -std=c99
Date: Fri, 06 May 2022 09:46:00 +0200 [thread overview]
Message-ID: <mw7d6zf6iv.fsf@tomate.loria.fr> (raw)
In-Reply-To: <74dc894-7774-e5bb-81-c5955c94ee4@ispras.ru> (message from Alexander Monakov on Thu, 5 May 2022 17:56:26 +0300 (MSK))
Dear Alexander,
> Good point. Also could you please add latency metrics, I see that your testing
> framework already exposes the '--latency' flag.
here are latency metrics (still on i5-4590):
| gcc-9 | gcc-10 | gcc-11 |
------------|-------|--------|--------|
-std=c99 | 70.8 | 70.3 | 70.2 |
-std=gnu18 | 59.5 | 59.5 | 59.5 |
It thus seems the issue only appears for the reciprocal throughput.
Best regards,
Paul
next prev parent reply other threads:[~2022-05-06 7:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-03 8:28 Paul Zimmermann
2022-05-03 9:09 ` Alexander Monakov
2022-05-03 11:45 ` Paul Zimmermann
2022-05-03 12:12 ` Alexander Monakov
2022-05-05 8:57 ` Stéphane Glondu
2022-05-05 14:31 ` Stéphane Glondu
2022-05-05 14:41 ` Marc Glisse
2022-05-05 14:56 ` Alexander Monakov
2022-05-06 7:46 ` Paul Zimmermann [this message]
2022-05-06 9:27 ` Alexander Monakov
2022-05-07 6:11 ` Paul Zimmermann
2022-05-11 13:26 ` Alexander Monakov
2022-05-05 17:50 ` Paul Zimmermann
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