From: Christoph Hellwig <hch@infradead.org>
To: Keith Busch <keith.busch@intel.com>
Cc: Neeraj Soni <neersoni@codeaurora.org>,
dm-devel@redhat.com, snitzer@redhat.com,
Alasdair Kergon <agk@redhat.com>
Subject: Re: dm: submit stacked requests in irq enabled context
Date: Wed, 10 May 2017 00:17:33 -0700 [thread overview]
Message-ID: <20170510071733.GA24980@infradead.org> (raw)
In-Reply-To: <20170509155555.GB2572@localhost.localdomain>
On Tue, May 09, 2017 at 11:55:55AM -0400, Keith Busch wrote:
> > I have recently started using kernel 4.4 on a Android device and ran
> > Androbench to check storage read/write performance. I found that the
> > Random Read (RR) and Random write(RW) performance with Full Disk
> > Encryption is degraded compared to no Disk Encryption. Initially i
dm-crypt doesn't even use request based device mapper. Something odd
must be going on with your benchmarks.
next prev parent reply other threads:[~2017-05-10 7:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <a66b6e17-a8c4-3465-fc2e-c3114abe0ca7@codeaurora.org>
2017-05-09 9:49 ` dm: submit stacked requests in irq enabled context Neeraj Soni
2017-05-09 15:55 ` Keith Busch
2017-05-10 5:22 ` Neeraj Soni
2017-05-10 7:17 ` Christoph Hellwig [this message]
2017-05-10 8:49 ` Neeraj Soni
2017-05-10 13:37 ` Gilad Ben-Yossef
2017-05-10 14:45 ` need to pick a solution for dm-crypt IV generation and do it! [was: Re: dm: submit stacked requests in irq enabled context] Mike Snitzer
2017-05-10 14:55 ` Gilad Ben-Yossef
2017-05-11 5:52 ` Neeraj Soni
2017-05-11 5:54 ` Neeraj Soni
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