Re: using fio client on 64-bit machine with fio server on 32-bit machine

["Frank D'Arcy" <frank.darcy@s3group.com>]

Problem solved!
All results looks good to me.
Thank you very much,
Frank


On 30/06/2014 15:52, Jens Axboe wrote:
> On 06/30/2014 05:09 AM, Frank D'Arcy wrote:
>> Hi Jens,
>> thanks for getting back to me.
>> I've rebuilt with the latest but I still see problems with the numbers.
>>
>> I do see one improvement,
>> the "% done" printed while the test is in progress now increases nicely
>> from 0% to 100%
>> whereas before it would jump around to seemingly random values between
>> 0% to 100%
>>
>> I wonder is it picking the wrong set of numbers to print in some cases.
>> eg. from a test with 2 jobs that runs for 23 seconds I faound the
>> following in normal output ...
>>
>> when run standalone on a 32-bit VM I see this for a "rw=randread" job
>>>    read : io=47106B, bw=2047B/s, iops=1023, runt= 23001msec
>> whereas when the same test is run from  64-bit client to 32-bit server I
>> see this for the same job
>>>    trim: io=98789GB, bw=1000/s, iops=0, runt=98784247808000msec
>> so it says "trim" where it should say "read"
>>
>> and for the 2nd job which is "rw=write"
>> when run standalone on a 32-bit VM I see this
>>>    write: io=34502B, bw=1500B/s, iops=750, runt= 23001msec
>> whereas when the same test is run from  64-bit client to 32-bit server I
>> see this for the same job
>>>    read : io=148185GB, bw=1500/s, iops=750, runt=98788542775296msec
>> so it says "read" where it should say "write"
>>
>> In the same test run, the following results are identical when run both
>> ways ...
>>> Run status group 0 (all jobs):
>>>     READ: io=46KB, aggrb=1KB/s, minb=1KB/s, maxb=1KB/s, mint=23001msec,
>>> maxt=23001msec
>>>    WRITE: io=33KB, aggrb=1KB/s, minb=1KB/s, maxb=1KB/s, mint=23001msec,
>>> maxt=23001msec
>> so these results look correct.
>>
>> All the above problems are only seen when run from 64-bit client to
>> 32-bit server,
>> no problems seen when running standalone,
>> and no problems seen when running 64-bit client to 64-bit server.
> Try updating again. Not sure I caught all of them, so would be nice to
> know how it works now.
>

-- 
Frank D'Arcy
www.s3group.com

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