[Openstack] Flavor metadata quota doesn't work

sinan at turka.nl sinan at turka.nl
Fri Dec 1 13:57:17 UTC 2017


I have created a flavor with the following metadata:

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
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.



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