From mboxrd@z Thu Jan 1 00:00:00 1970 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="TO+JTLpU" Received: from m1316.mail.163.com (m1316.mail.163.com [220.181.13.16]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0683BD79; Fri, 17 Nov 2023 17:48:29 -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=kQWPGBGA003W+v9st+8v1Kv9E76Ff1X5kUDffYhbGBI=; b=T O+JTLpUzLYRo1dBC0/wba80D8xtLS7ZpUELIy4iQA604J9sGsXmONX+c7j/DtqRo xuBvElWpUVqYfplpfmtNzj3zoLOIGgsx6Z9/ojhNgfo3GWWL8dissbtR3ykq1PCK 79z5ZmUtwbuWya3WYXEgUgk+EHqFzQA8CyAEZDoAMA= Received: from 00107082$163.com ( [111.35.185.43] ) by ajax-webmail-wmsvr16 (Coremail) ; Sat, 18 Nov 2023 09:46:42 +0800 (CST) X-Originating-IP: [111.35.185.43] Date: Sat, 18 Nov 2023 09:46:42 +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> <1a1338d0.6b3a.18bd3c09056.Coremail.00107082@163.com> <489ecb9e.28cc.18bd650affa.Coremail.00107082@163.com> X-NTES-SC: AL_Qu2bAv6cvUgr5CeeYekZnEYQheY4XMKyuPkg1YJXOp80oync1S84Y3JdOXXx0/2PKjCsvRWLYQpXyuhjfrl9UJyuyfAn6WnRQ3hZgeYIctXO 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: <1da1b7f.564.18be01bd6ce.Coremail.00107082@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:EMGowAD3nwaDF1hlGDUgAA--.24165W X-CM-SenderInfo: qqqrilqqysqiywtou0bp/1tbiEBIrql8YMjKeegAGsm X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CkF0IDIwMjMtMTEtMTggMDU6MTE6MDIsICJOYW1oeXVuZyBLaW0iIDxuYW1oeXVuZ0BrZXJuZWwu b3JnPiB3cm90ZToKPk9uIFdlZCwgTm92IDE1LCAyMDIzIGF0IDg6MDnigK9QTSBEYXZpZCBXYW5n IDwwMDEwNzA4MkAxNjMuY29tPiB3cm90ZToKPj4KCj4+Cj4+Cj4+IEZyb20gdGhlIGRhdGEgSSBj b2xsZWN0ZWQsIEkgdGhpbmsgdHdvIHByb2JsZW0gY291bGQgYmUgb2JzZXJ2ZWQgZm9yIGYwNmNj NjY3Zjc5OTA5ZTkxNzU0NjBiMTY3YzI3N2I3YzY0ZDNkZjAKPj4gMS4gc2FtcGxlIG1pc3Npbmcu Cj4+IDIuIHNhbXBsZSB1bnN0YWJsZSwgdG90YWwgc2FtcGxlIGNvdW50IGRyaWZ0IGEgbG90IGJl dHdlZW4gdGVzdHMuCj4KPkhtbS4uIHNvIHRoZSBmaW8gcHJvY2VzcyB3YXMgcnVubmluZyBpbiB0 aGUgYmFja2dyb3VuZCBkdXJpbmcKPnRoZSBwcm9maWxpbmcsIHJpZ2h0PyAgQnV0IEknbSBub3Qg c3VyZSBob3cgeW91IG1lYXN1cmVkIHRoZSBzYW1lCj5hbW91bnQgb2YgdGltZS4gIFByb2JhYmx5 IHlvdSBuZWVkIHRvIHJ1biB0aGlzIChmb3IgMTAgc2Vjb25kcyk6Cj4KPiAgc3VkbyBwZXJmIHJl Y29yZCAtYSAtRyBteXRlc3QgLS0gc2xlZXAgMTAKPgo+QW5kIEkgZ3Vlc3MgeW91IGRvbid0IHJ1 biB0aGUgcGVyZiBjb21tYW5kIGluIHRoZSB0YXJnZXQgY2dyb3VwCj53aGljaCBpcyBnb29kLgo+ CgpZZXMgIHByb2ZpbGluZyBwcm9jZXNzIHdhcyBub3QgaW4gdGhlIHRhcmdldCBjZ3JvdXAuCkkg dXNlICBmaW8gd2l0aCBgZmlvIC0tcmFuZHJlcGVhdD0xIC0taW9lbmdpbmU9bGliYWlvIC0tZGly ZWN0PTEgLS1uYW1lPXRlc3QgIC0tYnM9NGsgLS1pb2RlcHRoPTY0IC0tc2l6ZT0xRyAtLXJlYWR3 cml0ZT1yYW5kcncgIC0tcnVudGltZT02MDAgLS1udW1qb2JzPTQgLS10aW1lX2Jhc2VkPTFgIHdo aWNoIHdvdWxkIHJ1biA2MDAgc2Vjb25kcy4KVGhlcmUgd291bGQgYmUgZHJpZnRzIGluIHRoZSBw cm9maWxpbmcgcmVwb3J0IGJldHdlZW4gcnVucywgIGZyb20gdGhvc2Ugc21hbGwgIHNhbXBsZXMg b2YgdGVzdCBkYXRhIEkgY29sbGVjdGVkLCBtYXliZSBub3QgZW5vdWdoIHRvIG1ha2UgYSBmaXJt IGNvbmNsdXNpb24sICBJIGZlZWwgd2hlbiB0aGUgY29tbWl0IGlzIHJldmVydGVkLCB0aGUgZXhw ZWN0YXRpb24gZm9yIHRvdGFsIHNhbXBsZSBjb3VudCBpcyBoaWdoZXIgYW5kIHRoZSBzdGFuZGFy ZCBkZXZpYXRpb24gaXMgc21hbGxlci4KCj5BbmQgaXMgdGhlcmUgYW55IGNoYW5jZSBpZiBpdCdz IGltcHJvdmVkIGJlY2F1c2Ugb2YgdGhlIGNoYW5nZT8KPkFyZSB0aGUgbnVtYmVycyBpbiA2Ljcg YmV0dGVyIG9yIHdvcnNlPwo+CkkgaGF2ZSBubyBpZGVhIHdoZXRoZXIgdGhlIGNoYW5nZSBvZiBl eHBlY3RlZCB0b3RhbCBzYW1wbGUgY291bnQgYSBidWcgb3IgYSBmaXgsICBidXQsICB0aGUgb2Jz ZXJ2ZWQgcmVzdWx0IHRoYXQgdG90YWwgc2FtcGxlIGNvdW50IGRyaWZ0IGEgbG90IChiaWdnZXIg c3RhbmRhcmQgZGV2aWF0aW9uKSwgSSB0aGluayAsICBpcyBhIGJhZCB0aGluZy4gCiAKClRoYW5r cwpEYXZpZCBXYW5nCg==