From: Richard Weinberger <richard@nod.at>
To: 辉少 <wang502742203@qq.com>, linux-mtd <linux-mtd@lists.infradead.org>
Subject: Re: 回复：ubifs:questions about this filesystem
Date: Wed, 22 Jun 2016 21:56:39 +0200 [thread overview]
Message-ID: <576AED77.2070803@nod.at> (raw)
In-Reply-To: <tencent_47C8194435DAF0EA2221DA1E@qq.com>
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Hi!
Am 22.06.2016 um 17:26 schrieb »ÔÉÙ:
> Thank you for kind reply.
>
> 1. As you said just now"there is only a background thread to do many things", dose "many things" include both GC and synchronizing data?
I said GC can happen in many contexts. Also in the calling one.
To figure what the background thread exactly does see function ubifs_bg_thread().
> 2. If I write a file(1 KB) to ubifs mounted in 34MiB mtd, can i write 34,000 times or 34000/4 times(the real disk usage of a 1KB file is 4KB)£¿
The minimal file size on UBIFS is 4KiB. You can also not use all 34MiB, since UBIFS needs some LEBs for the journal, free space accounting,
master nodes, etc...
Thanks,
//richard
next prev parent reply other threads:[~2016-06-22 19:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-22 15:26 =?gb18030?B?u9i4tKO6dWJpZnM6cXVlc3Rpb25zIGFib3V0IHRoaXMgZmlsZXN5c3RlbQ==?= =?gb18030?B?u9TJ2Q==?=
2016-06-22 19:56 ` Richard Weinberger [this message]
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2016-06-22 14:13 ubifs:questions about this filesystem =?gb18030?B?u9TJ2Q==?=
2016-06-22 14:26 ` Richard Weinberger
[not found] ` <tencent_1F5A13F32BF5625D7149E156@qq.com>
2016-06-22 14:45 ` 回复：ubifs:questions " Richard Weinberger
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