On 07/03/2012 11:06 PM, Mark Tinguely wrote:
> On 07/03/12 02:30, Jeff Liu wrote:
>> I'd like to enlarge the test coverage of 286 to includes file mapping
>> with repeated hole/unwritten/unwritten_without_data/data intersections.
>> Those two new sub-tests could help verifying the current
>> seek_data/seek_hole improvements.
>> Besides, I observed a weird thing at the diff of 286.full, look at the
>> the sparse file creation output, there seems to be a significant
>> I/O degradation compare to the old test01/test02 IOPS results:
>> -1 MiB, 256 ops; 0.0000 sec (1.242 GiB/sec and 325699.7455 ops/sec)
>> +1 MiB, 256 ops; 0.0000 sec (70.161 MiB/sec and 17961.1310 ops/sec)
>> I run the test on same machine and same partition, I recalled the old
>> result is generated against around 3.4-rc2(not very sure), now is updated
>> to 3.5-rc4, does anyone hit that?
> Quick feedback. I don't see any degradation.
Thanks for the verification.
> OLD: 1 MiB, 256 ops; 0.0000 sec (484.027 MiB/sec and 123910.9390 ops/sec)
> THIS: 1 MiB, 256 ops; 0.0000 sec (494.560 MiB/sec and 126607.3195 ops/sec)
> All the tests are very close to the unpatched results.
>> Signed-off-by: Jie Liu<jeff.liu@xxxxxxxxxx>
>> 286 | 87
>> 286.full | 82
> Please, drop the 286.full patch.
Ok, will re-post a little while.
> --Mark Tinguely.
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