From: Kai Krakow <hurikhan77@gmail.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: Btrfs performance with small blocksize on SSD
Date: Sun, 24 Sep 2017 22:39:55 +0200 [thread overview]
Message-ID: <20170924223955.2dfda90f@jupiter.sol.kaishome.de> (raw)
In-Reply-To: ffd3bf37-3029-9f6e-5d57-6d8cca74fdad@gmail.com
Am Sun, 24 Sep 2017 19:43:05 +0300
schrieb Andrei Borzenkov <arvidjaar@gmail.com>:
> 24.09.2017 16:53, Fuhrmann, Carsten пишет:
> > Hello,
> >
> > 1)
> > I used direct write (no page cache) but I didn't disable the Disk
> > cache of the HDD/SSD itself. In all tests I wrote 1GB and looked
> > for the runtime of that write process.
>
> So "latency" on your diagram means total time to write 1GiB file? That
> is highly unusual meaning for "latency" which normally means time to
> perform single IO. If so, you should better rename Y-axis to something
> like "total run time".
If you look closely it says "Laufzeit" which visually looks similar to
"latency" but really means "run time". ;-)
--
Regards,
Kai
Replies to list-only preferred.
next prev parent reply other threads:[~2017-09-24 20:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-24 13:24 Btrfs performance with small blocksize on SSD Fuhrmann, Carsten
2017-09-24 13:40 ` Qu Wenruo
2017-09-24 13:53 ` AW: " Fuhrmann, Carsten
2017-09-24 14:10 ` Qu Wenruo
2017-09-24 14:22 ` AW: " Fuhrmann, Carsten
2017-09-24 16:43 ` Andrei Borzenkov
2017-09-24 20:39 ` Kai Krakow [this message]
2017-09-25 7:04 ` AW: " Fuhrmann, Carsten
2017-09-25 8:36 ` Kai Krakow
2017-09-26 20:33 ` Peter Grandi
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