[OpenAFS-devel] Re: afsfsperf ported to OpenAFS (for modern rx)

Fri, 19 Feb 2010 19:05:06 -0500

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Ragge:

While I would certainly like to see something like afsfsperf
built as part of OpenAFS I question whether what OpenAFS wants
is a port from Arla or a test implementation that sits a top
the OpenAFS UKERNEL build for Unix (or a special mode in
afsd_service.exe for Windows that can be executed from the
command line.)

What are your thoughts?

Jeffrey Altman

On 2/19/2010 6:17 PM, Ragnar Sundblad wrote:
>=20
> Yes, I should mention that this is a file server benchmarking tool.
>=20
> It measure the speed of file servers without going through the
> local cache, it is an ordinary userland program that talks directly
> to the server. It is normally tricky to benchmark a file server by
> just using the client, since that tends to be more a test of the
> client than the server. (At least in my experience.)
>=20
> afsfsperf creates and deletes files and directories, reads and writes
> data and such. It is pretty easy to change to create your own tests.
>=20
> I how found it pretty useful when setting up new servers to test the
> actual result.
>=20
> /ragge
>=20
> On 18 feb 2010, at 11.45, Ragnar Sundblad wrote:
>=20
>>
>> I have made a first step to break out afsfsperf from Arla
>> and run it with more recent rx from OpenAFS. Maybe it should
>> be called a feasibility test, or proof of concept, or something.
>>
>> I don't know of any other similar tool.
>>
>> Is this interesting to anyone else?
>>
>> If so, I'd be more than happy if someone else could help a little,
>> or maybe even pick up from here, as I don't really have the time to
>> work on this at the moment, and I don't need anything more out
>> of it right now than what it already does.
>> Besides, I am not really familiar with neither the Arla nor the
>> OpenAFS code or coding style, so I am probably pretty far from a
>> good pick for this job.
>>
>> I think it would be nice to have afsfsperf as part of the OpenAFS
>> distribution.
>>
>> Or maybe this is a bad approach, perhaps one should abuse these
>> codebases in another way?
>>
>> You can find it here:
>> <http://www.csc.kth.se/~ragge/afsfsperf-openafs.tgz>
>>
>> All code was picked from arla-0.90:
>> <ftp://ftp.stacken.kth.se/pub/arla/arla-0.90.tar.gz>
>>
>> /ragge
>>
>> -------------------------
>> README.txt=20
>> -------------------------
>>
>> 2010-02-18, Ragnar Sundblad <ragge@csc.kth.se>
>>
>> This is a crude, first step in porting the Arla program "afsfsperf" to=

>> OpenAFS. I had to break out some stuff from some Arla libraries that
>> it depends upon.
>>
>> It kind of works, but there are a few problems left:
>> - the bulkstat test crashes for some reason, hopefully be easy to
>> fix. I have commented the test out for now.
>> - assertion fail in rxkad_thr_stats_init if you have tokens when you
>> run it - do unlog first! Only unauthenticated and unencrypted
>> testing is currently possible. I don't expect this to be hard to fix
>> for someone that actually understands what is supposed to happen
>> here (<=3D not me, at least not just yet).
>>
>> Other things left to do:
>> - In a better world, Arla's libroken should be broken out in its whole=

>> as a stand alone library.
>> - Clean up ugly shortcuts I've taken.
>> - Make it portable.
>>
>> It was ported and built on recent opensolaris. To make it compile on
>> other platforms you will probably have to changes things a little.
>>
>> -------------------------
>>
>=20
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>=20

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