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tools/rados: fix "Floating point exception" if objectsize smaller than blocksize when do write-bench.

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When do write-bench, if objectsize is smaller than blocksize. It will
casue "Floating point exception".
This because in bjBencher::write_bench:
>>if (data.op_size)
>>    writes_per_object = data.object_size / data.op_size;
  It make writes_per_object = 0;
......
>> name[i] = generate_object_name(i / writes_per_object);
  i/0 cause Floating point exception.

If objectsize is smaller than blocksize, make blocksize is eqaul
objectsize.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
This commit is contained in:
Jianpeng Ma 2016-04-21 18:22:46 +08:00
parent eff74daf9c
commit d81c762041
1 changed files with 2 additions and 0 deletions
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2
src/tools/rados/rados.cc
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@ -2758,6 +2758,8 @@ static int rados_tool_common(const std::map < std::string, std::string > &opts,
}
if (!object_size)
object_size = op_size;
else if (object_size < op_size)
op_size = object_size;
ret = bencher.aio_bench(operation, seconds,
concurrent_ios, op_size, object_size,
max_objects, cleanup, run_name, no_verify);