Klaus Post 95814359bd
cache disk info to avoid repeated calls (#9682)
This value is requested on every upload when there are multiple zones.

Since this will result in an RPC call to every remote disk this scales 
quite badly in a distributed setup. Load every 1second interval.

2 servers, localhost only. In large distributed setups much bigger 
gains can be expected.

```
Operations: 21743 -> 22454
* Average: +3.28% (+0.0 MiB/s) throughput, +3.28% (+11.9) obj/s
* Fastest: +3.37% (+0.0 MiB/s) throughput, +3.37% (+13.0) obj/s
* 50% Median: +3.03% (+0.0 MiB/s) throughput, +3.03% (+11.2) obj/s
* Slowest: +8.03% (+0.0 MiB/s) throughput, +8.03% (+22.8) obj/s
```

For easy management of this a generic helper has been added.
2020-05-26 12:52:24 -07:00
..
2020-05-09 09:54:20 -07:00
2020-01-31 08:29:22 +05:30
2020-05-04 22:01:39 -07:00