From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Dietmar Maurer <dietmar@proxmox.com>
Cc: Alexandre DERUMIER <aderumier@odiso.com>,
Marcus Sorensen <shadowsor@gmail.com>,
Sage Weil <sage@inktank.com>,
ceph-devel <ceph-devel@vger.kernel.org>
Subject: Re: slow fio random read benchmark, need help
Date: Thu, 01 Nov 2012 09:08:03 +0100 [thread overview]
Message-ID: <50922DE3.9000903@profihost.ag> (raw)
In-Reply-To: <24E144B8C0207547AD09C467A8259F7557707A07@lisa.maurer-it.com>
Am 01.11.2012 08:38, schrieb Dietmar Maurer:
> I do not really understand that network latency argument.
> If one can get 40K iops with iSCSI, why can't I get the same with rados/ceph?
> Note: network latency is the same in both cases
> What do I miss?
Good question. Also i've seen 20k iops on ceph with 10GBE but i'm able
to get 100.000 iops via iSCSI.
Stefan
next prev parent reply other threads:[~2012-11-01 8:08 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-31 1:41 [PATCH 0/6] rbd: version 2 parent probing Alex Elder
2012-10-31 1:49 ` [PATCH 1/6] rbd: skip getting image id if known Alex Elder
2012-10-31 21:05 ` Josh Durgin
2012-10-31 1:49 ` [PATCH 2/6] rbd: allow null image name Alex Elder
2012-10-31 21:07 ` Josh Durgin
2012-10-31 1:49 ` [PATCH 3/6] rbd: get parent spec for version 2 images Alex Elder
2012-11-01 1:33 ` Josh Durgin
2012-10-31 1:49 ` [PATCH 4/6] libceph: define ceph_pg_pool_name_by_id() Alex Elder
2012-11-01 1:34 ` Josh Durgin
2012-10-31 1:49 ` [PATCH 5/6] rbd: get additional info in parent spec Alex Elder
2012-10-31 14:11 ` Alex Elder
2012-11-01 1:49 ` Josh Durgin
2012-11-01 12:18 ` Alex Elder
2012-10-31 1:50 ` [PATCH 6/6] rbd: probe the parent of an image if present Alex Elder
2012-10-31 11:59 ` slow fio random read benchmark, need help Alexandre DERUMIER
2012-10-31 15:57 ` Sage Weil
2012-10-31 16:29 ` Alexandre DERUMIER
2012-10-31 16:50 ` Alexandre DERUMIER
2012-10-31 17:08 ` Marcus Sorensen
2012-10-31 17:27 ` Alexandre DERUMIER
2012-10-31 17:38 ` Marcus Sorensen
2012-10-31 18:56 ` Alexandre DERUMIER
2012-10-31 19:50 ` Marcus Sorensen
2012-11-01 5:11 ` Alexandre DERUMIER
2012-11-01 5:41 ` Stefan Priebe - Profihost AG
2012-10-31 20:22 ` Josh Durgin
2012-11-01 7:38 ` Dietmar Maurer
2012-11-01 8:08 ` Stefan Priebe - Profihost AG [this message]
2012-11-01 10:40 ` Gregory Farnum
2012-11-01 10:54 ` Stefan Priebe - Profihost AG
2012-11-02 9:38 ` Alexandre DERUMIER
2012-11-03 10:01 ` slow fio random read benchmark: last librbd git : 20000iops ! Alexandre DERUMIER
2012-11-03 12:09 ` Alexandre DERUMIER
2012-11-01 15:46 ` slow fio random read benchmark, need help Marcus Sorensen
2012-11-01 16:28 ` Marcus Sorensen
2012-11-01 17:00 ` Dietmar Maurer
2012-11-03 17:09 ` Gregory Farnum
2012-11-04 14:54 ` Alexandre DERUMIER
2012-11-01 2:07 ` [PATCH 6/6] rbd: probe the parent of an image if present Josh Durgin
2012-11-01 12:26 ` Alex Elder
[not found] <CAMiztYLY364EXVQu6d6+He-FXd_AsDOqxkTO_DzKk24iJjwTcQ@mail.gmail.com>
2012-10-31 17:22 ` slow fio random read benchmark, need help Alexandre DERUMIER
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=50922DE3.9000903@profihost.ag \
--to=s.priebe@profihost.ag \
--cc=aderumier@odiso.com \
--cc=ceph-devel@vger.kernel.org \
--cc=dietmar@proxmox.com \
--cc=sage@inktank.com \
--cc=shadowsor@gmail.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