From: 李扬韬 <frank.li@vivo.com>
To: Chao Yu <chao@kernel.org>
Cc: jaegeuk@kernel.org, linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 1/2] f2fs: add sysfs nodes to get discard information
Date: Mon, 16 Aug 2021 10:42:34 +0800 (GMT+08:00) [thread overview]
Message-ID: <ACIArwDxD7lffBbq-DPSbarm.3.1629081754403.Hmail.frank.li@vivo.com> (raw)
In-Reply-To: <01c884b3-1250-3585-c417-5afb7b4930f0@kernel.org>
>> I've added new sysfs nodes to show discard stat since mount, which
>> will help us analyze whether the performance problem is related to
>> discard.
>>
>> issued_discard - Shows the number of issued discard
>> queued_discard - Shows the number of cached discard cmd count
>> discard_cmd_cnt - Shows the number of cached discard cmd count
>> undiscard_blks - Shows the number of undiscard blocks
>
>We have exported them in debugfs, can you use that?
>
>Thanks,
But now Android is forbidden to open debugfs, and in fact we have not
opened this configuration for a long time.
Thx,
Yangtao
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next prev parent reply other threads:[~2021-08-16 2:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-14 17:58 [f2fs-dev] [PATCH 1/2] f2fs: add sysfs nodes to get discard information Yangtao Li
2021-08-14 17:58 ` [f2fs-dev] [PATCH 2/2] f2fs: fix description about main_blkaddr node Yangtao Li
2021-08-16 2:37 ` Chao Yu
2021-08-16 2:35 ` [f2fs-dev] [PATCH 1/2] f2fs: add sysfs nodes to get discard information Chao Yu
2021-08-16 2:42 ` 李扬韬 [this message]
2021-08-16 4:15 ` Chao Yu
2021-08-16 6:13 ` 李扬韬
2021-08-17 0:16 ` Jaegeuk Kim
2021-08-19 4:49 ` Chao Yu
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