From: Eric Sandeen <sandeen@redhat.com>
To: "Richard W.M. Jones" <rjones@redhat.com>
Cc: linux-ext4@vger.kernel.org
Subject: Re: fstrim has no effect on a just-mounted filesystem
Date: Tue, 11 Mar 2014 18:09:28 -0500 [thread overview]
Message-ID: <531F97A8.2020905@redhat.com> (raw)
In-Reply-To: <20140311230715.GA19648@redhat.com>
On 3/11/14, 6:07 PM, Richard W.M. Jones wrote:
> I got it to work by using:
>
> ----------------------------------------------------------------------
> set -e
> set -x
> trace-cmd record -e all fstrim /sysroot
> trace-cmd report
> ----------------------------------------------------------------------
>
> The output is absolutely huge and I didn't capture it.
that's why I suggested a single tracepoint, rather than every tracepoint
in the kernel... ;)
oh wait, I didn't. :/ argh sorry.
# trace-cmd record -e ext4_trim\*
should do it.
> However just the act of doing the tracing *caused* the trim to happen
> properly in the underlying disk.
that sounds very strange...
-Eric
> Rich.
>
next prev parent reply other threads:[~2014-03-11 23:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-11 21:39 fstrim has no effect on a just-mounted filesystem Richard W.M. Jones
2014-03-11 21:47 ` Eric Sandeen
2014-03-11 22:00 ` Richard W.M. Jones
2014-03-11 22:04 ` Richard W.M. Jones
2014-03-11 22:08 ` Eric Sandeen
2014-03-11 22:59 ` Richard W.M. Jones
2014-03-11 23:07 ` Richard W.M. Jones
2014-03-11 23:09 ` Eric Sandeen [this message]
2014-03-11 23:30 ` Richard W.M. Jones
2014-03-12 10:17 ` Richard W.M. Jones
2014-03-12 13:42 ` Richard W.M. Jones
2014-03-12 18:10 ` Paolo Bonzini
2014-03-12 18:24 ` Richard W.M. Jones
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