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From: Bastian Blank <>
Subject: Re: [linux-lvm] raid0 - no performance increase??
Date: Sun, 11 Oct 2020 22:15:33 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Sat, Oct 10, 2020 at 05:52:32PM +0100, lejeczek wrote:
> I have a simple raid0 lvm comprising of two NVME devices.
> I'd expect performance of such a volume to be higher than a
> "regular" volume ran of a single NVME, but simple dbench
> shows such raid0 volume to the same "slow" as a single NVME
> volume.

Why do you think?  What is dbench anyway?  Linear access is not going to
be faster, as it is dominated by latency.  Please use fio with _random_
reads or writes and a useful queue depth.

Also, what do you mean with slow?  500k IOPS?


War is never imperative.
		-- McCoy, "Balance of Terror", stardate 1709.2

      reply	other threads:[~2020-10-11 20:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <>
2020-10-10 16:52 ` [linux-lvm] raid0 - no performance increase?? lejeczek
2020-10-11 20:15   ` Bastian Blank [this message]

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