John Spray 8b4dd5dc27 pageserver: jitter secondary periods (#7544) ...

## Problem

After some time the load from heatmap uploads gets rather spiky. They're
unintentionally synchronising.

Chart (does this make a _boing_ sound in anyone else's head?):

![image](https://github.com/neondatabase/neon/assets/944640/18829fc8-c5b7-4739-9a9b-491b5d6fcade)


## Summary of changes

- Add a helper `period_jitter` and apply a 5% jitter from downloader and
heatmap_uploader when updating the next runtime at the end of an
interation.
- Refactor existing places that we pick a startup interval into
`period_warmup`, so that the intent is obvious.

2024-05-03 12:31:25 +00:00

..

benches

add async walredo mode (disabled-by-default, opt-in via config) (#6548)

2024-04-15 22:14:42 +02:00

client

Remove tenant_id from TenantLocationConfigRequest (#7469)

2024-05-02 20:18:13 +02:00

compaction

pageserver: shard-aware keyspace partitioning (#6778)

2024-04-29 17:46:46 +00:00

ctl

pagectl draw-timeline-dir: include layer file name as an SVG comment (#7455)

2024-04-22 12:55:17 +00:00

pagebench

Server support for new pagestream protocol version (#7377)

2024-04-25 20:45:37 +03:00

src

pageserver: jitter secondary periods (#7544)

2024-05-03 12:31:25 +00:00

test_data

Add walingest test (#5892)

2023-11-28 12:50:53 -05:00

Cargo.toml

feat(pageserver): add metadata key range and aux key encoding (#7401)

2024-04-23 15:16:04 +00:00