From: "Stefan G. Weichinger" <lists@xunil.at>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] SSDs, ext4, fstrim, discard ...
Date: Thu, 13 Oct 2011 23:12:18 +0200 [thread overview]
Message-ID: <4E975432.2060501@xunil.at> (raw)
In-Reply-To: <4E94C292.2010601@xunil.at>
Am 12.10.2011 00:26, schrieb Stefan G. Weichinger:
>> What is the benefit of running fstrim manually over mounting with
>> discard?
>
> discard seems to slow down the fs by trimming all the time.
> I only report what I read. No tests done so far.
Shouldn't "discard" be set to make TRIM work anyway, even with fstrim?
man mount says for "discard":
"Controls whether ext4 should issue discard/TRIM commands to the
underlying block device when blocks are freed."
Sounds like TRIM-commands wouldn't get through to the SSD when "discard"
is not set.
Still wondering.
Stefan
prev parent reply other threads:[~2011-10-13 21:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-11 20:56 [gentoo-user] SSDs, ext4, fstrim, discard Stefan G. Weichinger
2011-10-11 22:05 ` Alan McKinnon
2011-10-11 22:28 ` Stefan G. Weichinger
2011-10-11 23:17 ` Alan McKinnon
2011-10-12 7:59 ` Stefan G. Weichinger
2011-10-11 22:05 ` Neil Bothwick
2011-10-11 22:26 ` Stefan G. Weichinger
2011-10-13 21:12 ` Stefan G. Weichinger [this message]
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