good to know.
On 08/23/2011 07:50 AM, Chaz Chandler wrote:
Yes, the afsio in the codecase does not use the client cache.
Jason Edgecombe<ja...@rampaginggeek.com> wrote:
On 08/22/2011 10:22 AM, Chas Williams (CONTRACTOR) wrote:
In message<4e512186.7020...@rampaginggeek.com>,Jason Edgecombe writes:
I was wondering. What data from production environments would be helpful
for the OpenAFS developers? Would it help us to set priorities? Would it
help us pinpoint performance bottlenecks? Could the data be gathered
without a significant performance penalty?
i think the primary problem here might be that there isnt an 'afs server'
benchmark that you can run. you can bench the drives, network or the
cpu individually but there isnt anything (that i know of) to quantify an
entire configuration. collecting sar is nice, but some systems dont have
the same capabilities so you might want something that is cross platform
(just like afs).
talking to the fileservers though would be the best choice. i gave
using afsio some thought but i havent looked into it closely enough to
see how much of the client cache is in use (which you would want to test
seperately i imagine).
I thought afsio avoided the client cache. Is there another option to use?
I vaguely recall some idea of recoding client/fileserver operations ans
replaying them to the fileserver. Did anything come of that?
Jason
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