From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.gmx.net (mout.gmx.net [212.227.17.22]) (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 D1A9DB643 for ; Fri, 8 Sep 2023 22:03:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.com; s=s31663417; t=1694210622; x=1694815422; i=quwenruo.btrfs@gmx.com; bh=5Ljgq+H7SkTzVPfsF1yYeLRPgCNrb/4ZGlnQM0A/jG8=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From:In-Reply-To; b=KePvt+I8bcx3rrjyEPjoB8ifmjOwKmFvjlGI2TRZRA4GhGkywr3yxcGNpumaEkDhw3NMoUN KI4CmW0Z5CscarlypUTSZP3LCdp8vncN6vnu9lwf2toWOVmTdbPmzQp07wV4hGqgi2WEmimrf X/RGrDUVuYDmyiEAmNo4lXuKqknidRq5zHqhgLpYJ6TcgxAKx84tXudQPyUrwoOzB0VbZH5VM vDXZM7E3rUeO6Bbo40eNh7+pTYvqN3OqBR6xob7y0+0r1uBarun2NXxEaWQxpLXW/NqyItA/7 cCbid3dB3R+xQxiuvF9emz995FJrsR3X6ZY5h5zz+g1XB/7CtUOA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1N5GE1-1pfw0h0EmD-011Bkp; Sat, 09 Sep 2023 00:03:42 +0200 Message-ID: <4f5fee23-2ccb-41a2-a64c-1675bc378ff5@gmx.com> Date: Sat, 9 Sep 2023 06:03:38 +0800 Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Scrub of my nvme SSD has slowed by about 2/3 To: Martin Steigerwald , linux-btrfs@vger.kernel.org, Linux regressions mailing list Cc: Tim Cuthbertson References: <1d611dbb-8aee-9a6e-701c-6498f1b51c34@leemhuis.info> <2169630.irdbgypaU6@lichtvoll.de> Content-Language: en-US From: Qu Wenruo Autocrypt: addr=quwenruo.btrfs@gmx.com; keydata= xsBNBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAHNIlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT7CwJQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCY00iVQUJDToH pgAKCRDCPZHzoSX+qNKACACkjDLzCvcFuDlgqCiS4ajHAo6twGra3uGgY2klo3S4JespWifr BLPPak74oOShqNZ8yWzB1Bkz1u93Ifx3c3H0r2vLWrImoP5eQdymVqMWmDAq+sV1Koyt8gXQ XPD2jQCrfR9nUuV1F3Z4Lgo+6I5LjuXBVEayFdz/VYK63+YLEAlSowCF72Lkz06TmaI0XMyj jgRNGM2MRgfxbprCcsgUypaDfmhY2nrhIzPUICURfp9t/65+/PLlV4nYs+DtSwPyNjkPX72+ LdyIdY+BqS8cZbPG5spCyJIlZonADojLDYQq4QnufARU51zyVjzTXMg5gAttDZwTH+8LbNI4 mm2YzsBNBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAHCwHwEGAEIACYCGwwWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCY00ibgUJDToHvwAK CRDCPZHzoSX+qK6vB/9yyZlsS+ijtsvwYDjGA2WhVhN07Xa5SBBvGCAycyGGzSMkOJcOtUUf tD+ADyrLbLuVSfRN1ke738UojphwkSFj4t9scG5A+U8GgOZtrlYOsY2+cG3R5vjoXUgXMP37 INfWh0KbJodf0G48xouesn08cbfUdlphSMXujCA8y5TcNyRuNv2q5Nizl8sKhUZzh4BascoK DChBuznBsucCTAGrwPgG4/ul6HnWE8DipMKvkV9ob1xJS2W4WJRPp6QdVrBWJ9cCdtpR6GbL iQi22uZXoSPv/0oUrGU+U5X4IvdnvT+8viPzszL5wXswJZfqfy8tmHM85yjObVdIG6AlnrrD In-Reply-To: <2169630.irdbgypaU6@lichtvoll.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:PIn7D1LkpohwKyNMIhYgxukMOg89dhtWUrhOd28xvQerO86oT7n /TL9eHxCAwKbMOFi2ysjcCdj5th8+5pyjEJfCQDUEC5+SZ0yym/S9D3N6F8VzuX4EZx6xU3 MHJOdcVvQHfMhPQSAq6vUOZTDomrLvdCKPvQiVc1/eQAPFM4n2o9vaelz/MX1a+jxdtTVvj a7YeG15bPLyGPpXrw2Udg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:VF7NGNkx3Gg=;IeRp0KLJcvnxc0fRyIxgVZOu+zi UcqtVrCWSvA35uQ9MFjL0V4UGRrOnEqgg8S90+DI5uaJQoXkLel9wcnpL0lh1OlfH+2wyUVuQ ZRtx7afQ8ShFHLdoO4teJVsO0uQFIO40hVpPS78b7jU5vV+oZ4u2U4e/Ga4nOxpa6JU6Vxmma e8QZHCR7mWNxbjvATrjUxZ7cN21DDurwO/nCcNHMV2pIsj9yF/GdE8UTZO1UNaHpu3lufopIu 984RwzlYZPQhitZJp9BopnbxIih4wTVvGMyhr5ibVvRTv5NEIQ0M3hy0+3Q9sH96tCgxsY198 sZyKXgCiyMlNxtPXVbNfA/qNzsb8ND0TnT3deI4ISMP2wv9uZrEER7SCiioFWBmiSueCXX+GA sYnpo3aqjdOgvJfA+xnXEzpBqJCdbT2xwhZWU8HqPTeinzOPqp2UXbjq74mXl6S4AGikLi6oj QuGmxOnetGX3KVK4GrJIzPnN+7lPSJtiYrW50X1cNGJcIvhC+gmc+PaRF/7EjG1jNtDvimObw 56eLfMdM+bBTlHEBek4zGjGM10gnVxbOQEZDw1xnA8xJyNicBm2RcMCCa/YbHBh4RKOhfd8YV PM09X2ncLjBdt+jjM7ex1xSx8Hh+eQJvazoNmXjDiifaMKP7a788OM0etMiNy+EUl2wRDTBVh gux42aBvC7u/7vzQjsJlNKJoBgUJNbPEkAOCEz1Q0+rSB862oMGNXuxFUxsfHaN10+qX+D6nB afstYy+Z4AJWrtia4AVck/fdu7wFSQY3DpYR22rR0G544t8o9EcbKSFEMJFmAUt+/F43r4RvG torYUVTW8SU8Kq7zb8nhDatZStmEZDNLZ6GjVZWmbR/y2o5HY6yLhxu2IkwCU153QpDWjEnqZ +QqY7gR3Q0O0bC8638sa/sVbLlC49if9Oa+pcdPDur999Eogdwh0dHdnRh1WneJqLAMYW+Tmz Prgmf3bIYvlqiXwylsuaqF0wCRk= On 2023/9/8 19:54, Martin Steigerwald wrote: > Hi Thorsten, Qu, Tim, everyone, > > Linux regression tracking #update (Thorsten Leemhuis) - 29.08.23, 14:17:= 33 > CEST: >> On 12.07.23 13:02, Linux regression tracking #adding (Thorsten Leemhuis= ) >> wrote: >>> On 03.07.23 22:19, Tim Cuthbertson wrote: >>>> Yesterday, I noticed that a scrub of my main system filesystem has >>>> slowed from about 2.9 gb/sec to about 949 mb/sec. My scrub used to >>>> run >>>> in about 12 seconds, now it is taking 51 seconds. I had just >>>> installed >>>> Linux kernel 6.4.1 on Arch Linux, upgrading from 6.3.9. At first I >>>> suspected the new kernel, but now I am not so sure. >>> >>> Thanks for the report. It seems it will take some work to address >>> this, >>> so to be sure the issue doesn't fall through the cracks unnoticed, I'm >>> adding it to regzbot, the Linux kernel regression tracking bot: >>> >>> #regzbot ^introduced e02ee89baa66 >> >> #regzbot resolve: various changes merged for 6.6 improve things again; >> more planned; backporting is planned, too; >> #regzbot ignore-activity >> >> (yes, that is not idea, but that's how it is sometimes) > > ideal? > > Scrubbing "/home" with 304.61GiB (interestingly both back then with 6.4 > and now with 6.5.2): > > - 6.4: 966.84MiB/s > - 6.5.2: 748.02MiB/s > > I expected an improvement. > > Same Lenovo ThinkPad T14 AMD Gen 1 with AMD Ryzen 7 PRO 4750U, 32 GiB RA= M > and 2TB Samsung 980 Pro NVME SSD as before. The fixes didn't arrive until v6.6. Thanks, Qu > > Ciao,