VictoriaMetrics/app/vmalert/datasource/testdata
Roman Khavronenko a5c427bac4
app/vmalert/datasource: reduce number of allocations when parsing instant responses (#6272)
Allocations are reduced by implementing custom json parser via fastjson
lib.
The change also re-uses `promInstant` object in attempt to reduce number
of
allocations when parsing big responses, as usually happens with heavy
recording rules.

```
name                                old allocs/op  new allocs/op  delta
ParsePrometheusResponse/Instant-10     9.65k ± 0%     5.60k ± 0%   ~     (p=1.000 n=1+1)

```

Signed-off-by: hagen1778 <roman@victoriametrics.com>

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 4f0525852f)
2024-05-16 09:35:58 +02:00
..
instant_response.json app/vmalert/datasource: reduce number of allocations when parsing instant responses (#6272) 2024-05-16 09:35:58 +02:00