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Re: [Qemu-block] [Qemu-devel] [PATCH v2 3/5] iotests: reduce PBKDF itera
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-block] [Qemu-devel] [PATCH v2 3/5] iotests: reduce PBKDF iterations when testing LUKS |
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Date: |
Tue, 3 Jan 2017 13:08:00 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 |
On 01/03/2017 11:04 AM, Daniel P. Berrange wrote:
> By default the PBKDF algorithm used with LUKS is tuned
> based on the number of iterations to produce 1 second
> of running time. This makes running the I/O test with
> the LUKS format orders of magnitude slower than with
> qcow2/raw formats.
>
> When creating LUKS images, set the iteration time to
> a 10ms to reduce the time overhead for LUKS, since
> security does not matter in I/O tests.
>
> Previsouly a full 'check -luks' would take
s/Previsouly/Previously/
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-block] [PATCH v2 0/5] Improve I/O tests coverage of LUKS, Daniel P. Berrange, 2017/01/03
- [Qemu-block] [PATCH v2 1/5] iotests: skip 159 & 170 with luks format, Daniel P. Berrange, 2017/01/03
- [Qemu-block] [PATCH v2 2/5] iotests: fix remainining tests to work with LUKS, Daniel P. Berrange, 2017/01/03
- [Qemu-block] [PATCH v2 3/5] iotests: reduce PBKDF iterations when testing LUKS, Daniel P. Berrange, 2017/01/03
- [Qemu-block] [PATCH v2 4/5] iotests: add more LUKS hash combination tests, Daniel P. Berrange, 2017/01/03
- [Qemu-block] [PATCH v2 5/5] iotests: chown LUKS device before qemu-io launches, Daniel P. Berrange, 2017/01/03