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On 12/01/2017 08:57 AM, sinan at turka.nl wrote:
> Hi,
> 
> I have created a flavor with the following metadata:
> quota:disk_write_bytes_sec='10240'
> 
> This should limit writing to disk to 10240 bytes (10KB/s). I also tried it
> with a higher number (100MB/s).
> 
> Using the flavor I have launched an instance and ran a write speed test.
> 
> For an unknown reason, the metadata seems to be ingored, since I can write
> with 500+ MB/s to the disk:
> 
> [centos at vmthresholdtest ~]$ dd if=/dev/zero of=file.bin bs=100M count=15
> conv=fdatasync
> 15+0 records in
> 15+0 records out
> 1572864000 bytes (1,6 GB) copied, 2,78904 s, 564 MB/s
> [centos at vmthresholdtest ~]$
> 
> Running Newton.

Yeah, that functionality doesn't work. Really, not sure if it ever did.

Best,
-jay