From: David Sterba <dsterba@suse.cz>
To: dsterba@suse.cz, Qu Wenruo <quwenruo.btrfs@gmx.com>,
Nikolay Borisov <nborisov@suse.com>, Qu Wenruo <wqu@suse.com>,
linux-btrfs@vger.kernel.org
Subject: Re: [PATCH] btrfs: don't update the block group item if used bytes are the same
Date: Fri, 2 Sep 2022 14:51:28 +0200 [thread overview]
Message-ID: <20220902125127.GX13489@twin.jikos.cz> (raw)
In-Reply-To: <20220818122624.GJ13489@twin.jikos.cz>
On Thu, Aug 18, 2022 at 02:26:24PM +0200, David Sterba wrote:
> On Mon, Jul 11, 2022 at 04:47:25PM +0800, Qu Wenruo wrote:
> > No need to completely cancel each other.
> >
> > In fact, just COWing a path without adding/deleting new cousins would be
> > enough, and that would be very common for a lot of tree block operations.
>
> I would be interested in numbers too, a percentage of skip/total would
> be good for some workloads so we have at least some idea.
I'll keep the patch in for-next until we see some numbers about how much
the optimization is used.
next prev parent reply other threads:[~2022-09-02 13:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-11 6:37 [PATCH] btrfs: don't update the block group item if used bytes are the same Qu Wenruo
2022-07-11 8:30 ` Nikolay Borisov
2022-07-11 8:47 ` Qu Wenruo
2022-08-18 12:26 ` David Sterba
2022-09-02 12:51 ` David Sterba [this message]
2022-09-07 14:31 ` Josef Bacik
2022-09-07 17:29 ` Josef Bacik
2022-09-07 22:08 ` David Sterba
2022-09-07 22:20 ` Qu Wenruo
2022-09-07 22:35 ` Qu Wenruo
-- strict thread matches above, loose matches on Subject: below --
2022-09-09 6:45 Qu Wenruo
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