From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <xry111@xry111.site>
Received: from xry111.site (xry111.site [IPv6:2001:470:683e::1])
	by sourceware.org (Postfix) with ESMTPS id 666C13858D37
	for <gcc@gcc.gnu.org>; Tue, 27 Sep 2022 02:51:01 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 666C13858D37
Authentication-Results: sourceware.org; dmarc=pass (p=reject dis=none) header.from=xry111.site
Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=xry111.site
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xry111.site;
	s=default; t=1664247057;
	bh=lbENrEwA+z+AKQnFzgZCfFphWLBThEJdOfSLckENWo4=;
	h=Subject:From:To:Cc:Date:In-Reply-To:References:From;
	b=cAfUAUJis0fBqZdKtn6dNaRSXkFsKFvMEwg2ilNf4aTYvkzNSpFPXO4YJzfhKazCq
	 THDCqGGV3yQ8VjXOepGeOlWsei1wTLcfeR8p36pLgR9j0vKv6FXdxvHidW/AenVIGs
	 wpfM8xipKRQ7spqbJhrbf6hRXmeoMoidQlGXp7g8=
Received: from localhost.localdomain (xry111.site [IPv6:2001:470:683e::1])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
	 key-exchange ECDHE (P-256) server-signature ECDSA (P-384) server-digest SHA384)
	(Client did not present a certificate)
	(Authenticated sender: xry111@xry111.site)
	by xry111.site (Postfix) with ESMTPSA id 1920C65B5F;
	Mon, 26 Sep 2022 22:50:56 -0400 (EDT)
Message-ID: <ef128d7b73fadf694902f3626187ebd5667c5e99.camel@xry111.site>
Subject: Re: Number of ALU in la464.md
From: Xi Ruoyao <xry111@xry111.site>
To: Lulu Cheng <chenglulu@loongson.cn>
Cc: gcc@gcc.gnu.org, Wang Xuerui <i@xen0n.name>
Date: Tue, 27 Sep 2022 10:50:55 +0800
In-Reply-To: <29636360-2958-faaf-35ff-ed5d9b757900@loongson.cn>
References: <85ef5c4398d48c7e1c87692c5f2d56a755f19c09.camel@xry111.site>
	 <29636360-2958-faaf-35ff-ed5d9b757900@loongson.cn>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
User-Agent: Evolution 3.46.0 
MIME-Version: 1.0
X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FROM_SUSPICIOUS_NTLD,LIKELY_SPAM_FROM,MEDICAL_SUBJECT,SPF_HELO_PASS,SPF_PASS,TXREP,T_PDS_OTHER_BAD_TLD autolearn=no autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org
List-Id: <gcc.gcc.gnu.org>

On Tue, 2022-09-27 at 10:40 +0800, Lulu Cheng wrote:
> You are right, I just added it before, but I didn't see the performance=
=20
> improvement,
>=20
> so I didn't change this place.

Alright, so just left la464.md as-is for now.

I'll try Phoronix bench suite on LoongArch once a binary distro is in a
good shape (Phoronix bench suite uses package managers like apt or dnf
but they are not in Linux From Scratch, and I don't have access to
expensive SPEC CPU suite).

> =E5=9C=A8 2022/9/25 =E4=B8=8B=E5=8D=887:28, Xi Ruoyao =E5=86=99=E9=81=93:
> > Hi,
> >=20
> > According to the schematic
> > (https://loongson.github.io/LoongArch-Documentation/Loongson-3A5000-
> > usermanual-EN.html#la464-processor-core,
> > Figure 5) we have 4 ALUs in LA464, but in la464.md we only define
> > la464_alu1 and la464_alu2.
> >=20
> > Should we add la464_alu{3,4} as well, or am I missing something
> > here?
>=20

--=20
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University