From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 797983174E for ; Wed, 15 Nov 2023 16:12:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=163.com header.i=@163.com header.b="mS1G6Fs9" Received: from m13115.mail.163.com (m13115.mail.163.com [220.181.13.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 229E683; Wed, 15 Nov 2023 08:12:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Content-Type:MIME-Version: Message-ID; bh=GXGVKdwy5DsAX8pLOcKCWbltln5EH7eBs7UasJPfv18=; b=m S1G6Fs9C7e8Ly++5BikQ+zBNBR86m6MI/S/kymnkBpVL5BTS7lWpJCFy5VPS5UHv Nt3JmGR30OIbQFOdXFEdnIYnLL4P4UefpYGGVljjRroFITbt8tXTxQp7nL185jyd ydV3VsNEDnsvCP0uUW846+a6Nb79VwENATdHU5ii6k= Received: from 00107082$163.com ( [111.35.186.243] ) by ajax-webmail-wmsvr115 (Coremail) ; Thu, 16 Nov 2023 00:11:34 +0800 (CST) X-Originating-IP: [111.35.186.243] Date: Thu, 16 Nov 2023 00:11:34 +0800 (CST) From: "David Wang" <00107082@163.com> To: "Namhyung Kim" Cc: "Peter Zijlstra" , mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [Regression or Fix]perf: profiling stats sigificantly changed for aio_write/read(ext4) between 6.7.0-rc1 and 6.6.0 X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20230109(dcb5de15) Copyright (c) 2002-2023 www.mailtech.cn 163com In-Reply-To: References: <449fb8d2.27fb.18bcc190021.Coremail.00107082@163.com> <76d75357.6ab6.18bce6b7d5b.Coremail.00107082@163.com> <20231115103241.GD3818@noisy.programming.kicks-ass.net> <407a06f8.632a.18bd2a2ece1.Coremail.00107082@163.com> X-NTES-SC: AL_Qu2bAvydu04i4iOdYOkZnEYQheY4XMKyuPkg1YJXOp80qSvR3Ac+Qm1GJF3b/P+fAQWUogqGWwBf7vl6YbVUVpzNPh8ERBbpPFgUzWYcPEHd Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=UTF-8 Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <1a1338d0.6b3a.18bd3c09056.Coremail.00107082@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:c8GowADnD4m37VRlRMQHAA--.64135W X-CM-SenderInfo: qqqrilqqysqiywtou0bp/xtbBnAEpqlghlW-3-AAFsT X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CuWcqCAyMDIzLTExLTE1IDIzOjQ4OjMz77yMIk5hbWh5dW5nIEtpbSIgPG5hbWh5dW5nQGtlcm5l bC5vcmc+IOWGmemBk++8mgo+T24gV2VkLCBOb3YgMTUsIDIwMjMgYXQgMzowMOKAr0FNIERhdmlk IFdhbmcgPDAwMTA3MDgyQDE2My5jb20+IHdyb3RlOgo+Pgo+Pgo+Pgo+PiBBdCAyMDIzLTExLTE1 IDE4OjMyOjQxLCAiUGV0ZXIgWmlqbHN0cmEiIDxwZXRlcnpAaW5mcmFkZWFkLm9yZz4gd3JvdGU6 Cj4+ID4KPj4gPk5hbWh5dW5nLCBjb3VsZCB5b3UgcGxlYXNlIHRha2UgYSBsb29rLCB5b3Uga25v dyBob3cgdG8gb3BlcmF0ZSB0aGlzCj4+ID5jZ3JvdXAgc3R1ZmYuCj4+ID4KPj4KPj4gTW9yZSBp bmZvcm1hdGlvbiwgIEkgcnVuIHRoZSBwcm9maWxpbmcgd2l0aCA4Y3B1IG1hY2hpbmUgb24gYSBT U0Qgd2l0aCBleHQ0IGZpbGVzeXN0ZW0gOgo+Pgo+PiAjIG1rZGlyIC9zeXMvZnMvY2dyb3VwL215 dGVzdAo+PiAjIGVjaG8gJCQgPiAvc3lzL2ZzL2Nncm91cC9teXRlc3QvY2dyb3VwLnByb2NzCj4+ ICMjIFN0YXJ0IHByb2ZpbGluZyB0YXJnZXRpbmcgY2dyb3VwIC9zeXMvZnMvY2dyb3VwL215dGVz dCAgIG9uIGFub3RoZXIgdGVybWluYWwKPj4gIyBmaW8gLS1yYW5kcmVwZWF0PTEgLS1pb2VuZ2lu ZT1saWJhaW8gLS1kaXJlY3Q9MSAtLW5hbWU9dGVzdCAgLS1icz00ayAtLWlvZGVwdGg9NjQgLS1z aXplPTFHIC0tcmVhZHdyaXRlPXJhbmRydyAgLS1ydW50aW1lPTYwMCAtLW51bWpvYnM9NCAtLXRp bWVfYmFzZWQ9MQo+Pgo+PiBJIGdvdCBhIGZlZWxpbmcgdGhhdCBmMDZjYzY2N2Y3OTkwIHdvdWxk IGRlY3JlYXNlIHRvdGFsIHNhbXBsZXMgYnkgMTAlfjIwJSB3aGVuIHByb2ZpbGluZyBJTyBiZW5j aG1hcmsgd2l0aGluIGNncm91cC4KPgo+T2ggc29ycnksIEkgbWlzc2VkIHRoaXMgbWVzc2FnZS4g IENhbiB5b3UgcGxlYXNlIHNoYXJlIHRoZQo+Y29tbWFuZCBsaW5lIGFuZCB0aGUgb3V0cHV0Pwo+ CkkgZGlkIG5vdCB1c2UgcGVyZi4uLi4uIFRoaXMgaXMgdGhlIHBhcnQgd2hlcmUgIGl0IGlzIG5v dCBxdWl0ZSBjb252aW5jaW5nIHRvIHJlcG9ydCB0aGUgY2hhbmdlLCBJIGFtIHVzaW5nIGEgcHJv ZmlsaW5nIHRvb2wgb2YgbXkgb3duIGFzIEkgbWVudGlvbmVkIGluIHRoZSBmaXJzdCBtYWlsLi4u Li4KQnV0IEkgYmVsaWV2ZSBteSBwcm9maWxpbmcgdG9vbHMgZGlkIGRldGVjdCBzb21lIGNoYW5n ZXMuCgpJIGFtIG5vdCBleHBlcmllbmNlZCB3aXRoIHRoZSBwZXJmLXRvb2wgYXQgYWxsLCAgIHRv byBjb21wbGljYXRlZCBhIHRvb2wgZm9yIG1lLi4uLiBCdXQgSSB0aGluayBJIGNhbiB0cnkgaXQu CgpEYXZpZCBXYW5nLgo=