From mboxrd@z Thu Jan  1 00:00:00 1970
Authentication-Results: smtp.subspace.kernel.org; dkim=none
Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170])
	by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 579BA1B4;
	Wed, 29 Nov 2023 17:59:27 -0800 (PST)
Received: by mail-pl1-f170.google.com with SMTP id d9443c01a7336-1d001e4cf7cso4424625ad.2;
        Wed, 29 Nov 2023 17:59:27 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20230601; t=1701309567; x=1701914367;
        h=content-transfer-encoding:cc:to:subject:message-id:date:from
         :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=0Scw2aCR9gSmd89SGL5dYIOKKFRpiyaWuC/eM4b4hck=;
        b=MxNOYNazkNTyd7cup6xbI4SVNx0K/VXzbeq91nYsoYSNEAZQQQ4DQ/u+Dq4dXLuaTL
         CJ94I2506SifKveg+Ak/HHUmIZaJBSEMN3sXB2V6l6viGnYA0au53X4ife5KB99N0mJT
         /Gw6ZlZOU1UFK4fi9aPITj5+ebhMKzL3fz6/qrwJI4XBvt7jD7fhnZrtPtioxqK9PkLr
         u0zwL7GYUJwZtQ7og8eBhNBj8NWI2KD06PO7viud2ZTEdXZnZdXj1NLbq8GWr5BxYxoG
         bp+dtxUlhtos8ivyKk86x0mnPGs0/jAp6xq0YKgvrG21BOs6v9ROWzFz5/WWdRP+B1gR
         KQDw==
X-Gm-Message-State: AOJu0YxH5kAufCabrXFrf7LVDM84gNYcThF7QJYYnEPMadodPgRa5dmt
	C1U9d1ZIX2JLjTKoZc93JD9AKal0floHDsyK1/4=
X-Google-Smtp-Source: AGHT+IFTqWqKOB2XJ49uuqo+U1YChwhrEKvy8rlyOR7UbtUVKneMenIwsRoA435NfayofWqJFE7KkrIb7VUr76OYDS0=
X-Received: by 2002:a17:90b:1b4b:b0:285:b1b8:e29c with SMTP id
 nv11-20020a17090b1b4b00b00285b1b8e29cmr15014619pjb.12.1701309566671; Wed, 29
 Nov 2023 17:59:26 -0800 (PST)
Precedence: bulk
X-Mailing-List: linux-perf-users@vger.kernel.org
List-Id: <linux-perf-users.vger.kernel.org>
List-Subscribe: <mailto:linux-perf-users+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-perf-users+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
References: <20231127220902.1315692-1-irogers@google.com> <20231127220902.1315692-8-irogers@google.com>
In-Reply-To: <20231127220902.1315692-8-irogers@google.com>
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 29 Nov 2023 17:59:15 -0800
Message-ID: <CAM9d7cjYGo0USDXfVSJ-gZXhs1waTyeat4S3eH7S+8L09VQZSw@mail.gmail.com>
Subject: Re: [PATCH v5 07/50] perf maps: Switch modules tree walk to io_dir__readdir
To: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, 
	Arnaldo Carvalho de Melo <acme@kernel.org>, Mark Rutland <mark.rutland@arm.com>, 
	Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, 
	Adrian Hunter <adrian.hunter@intel.com>, Nick Terrell <terrelln@fb.com>, 
	Kan Liang <kan.liang@linux.intel.com>, Andi Kleen <ak@linux.intel.com>, 
	Kajol Jain <kjain@linux.ibm.com>, Athira Rajeev <atrajeev@linux.vnet.ibm.com>, 
	Huacai Chen <chenhuacai@kernel.org>, Masami Hiramatsu <mhiramat@kernel.org>, 
	Vincent Whitchurch <vincent.whitchurch@axis.com>, "Steinar H. Gunderson" <sesse@google.com>, 
	Liam Howlett <liam.howlett@oracle.com>, Miguel Ojeda <ojeda@kernel.org>, 
	Colin Ian King <colin.i.king@gmail.com>, Dmitrii Dolgov <9erthalion6@gmail.com>, 
	Yang Jihong <yangjihong1@huawei.com>, Ming Wang <wangming01@loongson.cn>, 
	James Clark <james.clark@arm.com>, K Prateek Nayak <kprateek.nayak@amd.com>, 
	Sean Christopherson <seanjc@google.com>, Leo Yan <leo.yan@linaro.org>, 
	Ravi Bangoria <ravi.bangoria@amd.com>, German Gomez <german.gomez@arm.com>, 
	Changbin Du <changbin.du@huawei.com>, Paolo Bonzini <pbonzini@redhat.com>, Li Dong <lidong@vivo.com>, 
	Sandipan Das <sandipan.das@amd.com>, liuwenyu <liuwenyu7@huawei.com>, 
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, 
	Guilherme Amadio <amadio@gentoo.org>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

On Mon, Nov 27, 2023 at 2:09=E2=80=AFPM Ian Rogers <irogers@google.com> wro=
te:
>
> Compared to glibc's opendir/readdir this lowers the max RSS of perf
> record by 1.8MB on a Debian machine.
>
> Signed-off-by: Ian Rogers <irogers@google.com>

Acked-by: Namhyung Kim <namhyung@kernel.org>

Thanks,
Namhyung