From: lejeczek <peljasz@yahoo.co.uk>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: [linux-lvm] raid0 - no performance increase??
Date: Sat, 10 Oct 2020 17:52:32 +0100 [thread overview]
Message-ID: <269f632e-591e-56c3-a3be-31ac6060f73f@yahoo.co.uk> (raw)
In-Reply-To: 269f632e-591e-56c3-a3be-31ac6060f73f.ref@yahoo.co.uk
Hi guys,
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.
The system is a Centos 8 with 5.8.14-1.el8.elrepo.x86_64 and
default kernels.
raid0:
#Str #DStr Stripe Type Devices
2 2 64.00k raid0 0_rimage_0(0),0_rimage_1(0)
1 1 0 linear /dev/nvme0n1(0)
1 1 0 linear /dev/nvme1n1(0)
Care to share your thoughts? I'll be grateful.
many thanks, L
next parent reply other threads:[~2020-10-10 16:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <269f632e-591e-56c3-a3be-31ac6060f73f.ref@yahoo.co.uk>
2020-10-10 16:52 ` lejeczek [this message]
2020-10-11 20:15 ` [linux-lvm] raid0 - no performance increase?? Bastian Blank
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=269f632e-591e-56c3-a3be-31ac6060f73f@yahoo.co.uk \
--to=peljasz@yahoo.co.uk \
--cc=linux-lvm@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).