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use fill_level gauges instead of histograms (#2276)

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This commit is contained in:
Bernhard Schuster
2021-01-15 18:46:31 +01:00
committed by GitHub
parent 8192248c52
commit 366c229f6f
1 changed files with 19 additions and 33 deletions
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polkadot/node/overseer/src/lib.rs
+19 -33
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@@ -1095,8 +1095,8 @@ struct MetricsInner {
deactivated_heads_total: prometheus::Counter<prometheus::U64>,
messages_relayed_total: prometheus::Counter<prometheus::U64>,
message_relay_timings: prometheus::Histogram,
to_overseer_channel_queue_sizes: prometheus::Histogram,
from_overseer_channel_queue_sizes: prometheus::Histogram,
to_overseer_channel_queue_size: prometheus::Gauge<prometheus::U64>,
from_overseer_channel_queue_size: prometheus::Gauge<prometheus::U64>,
}
#[derive(Default, Clone)]
@@ -1127,8 +1127,8 @@ impl Metrics {
}
fn channel_fill_level_snapshot(&self, from_overseer: usize, to_overseer: usize) {
self.0.as_ref().map(|metrics| metrics.to_overseer_channel_queue_sizes.observe(to_overseer as f64));
self.0.as_ref().map(|metrics| metrics.from_overseer_channel_queue_sizes.observe(from_overseer as f64));
self.0.as_ref().map(|metrics| metrics.to_overseer_channel_queue_size.set(to_overseer as u64));
self.0.as_ref().map(|metrics| metrics.from_overseer_channel_queue_size.set(from_overseer as u64));
}
}
@@ -1178,35 +1178,21 @@ impl metrics::Metrics for Metrics {
)?,
registry,
)?,
from_overseer_channel_queue_sizes: prometheus::register(
prometheus::Histogram::with_opts(
prometheus::HistogramOpts {
common_opts: prometheus::Opts::new(
"parachain_from_overseer_channel_queue_sizes",
"Number of elements sitting in the channel waiting to be processed.",
),
buckets: prometheus::exponential_buckets(
1_f64,
2_f64,
(CHANNEL_CAPACITY as f64).log2().ceil() as usize,
).expect("inputs are within documented range; qed"),
}
from_overseer_channel_queue_size: prometheus::register(
prometheus::Gauge::<prometheus::U64>::with_opts(
prometheus::Opts::new(
"parachain_from_overseer_channel_queue_size",
"Number of elements sitting in the channel waiting to be processed.",
),
)?,
registry,
)?,
to_overseer_channel_queue_sizes: prometheus::register(
prometheus::Histogram::with_opts(
prometheus::HistogramOpts {
common_opts: prometheus::Opts::new(
"parachain_to_overseer_channel_queue_sizes",
"Number of elements sitting in the channel waiting to be processed.",
),
buckets: prometheus::exponential_buckets(
1_f64,
2_f64,
(CHANNEL_CAPACITY as f64).log2().ceil() as usize,
).expect("inputs are within documented range; qed"),
}
to_overseer_channel_queue_size: prometheus::register(
prometheus::Gauge::<prometheus::U64>::with_opts(
prometheus::Opts::new(
"parachain_to_overseer_channel_queue_size",
"Number of elements sitting in the channel waiting to be processed.",
),
)?,
registry,
)?,
@@ -1346,7 +1332,7 @@ where
let meter_from_overseer = events_rx.meter().clone();
let meter_to_overseer = to_overseer_rx.meter().clone();
let metronome_metrics = metrics.clone();
let metronome = Metronome::new(std::time::Duration::from_millis(137))
let metronome = Metronome::new(std::time::Duration::from_millis(950))
.for_each(move |_| {
metronome_metrics.channel_fill_level_snapshot(meter_from_overseer.queue_count(), meter_to_overseer.queue_count());
@@ -2126,10 +2112,10 @@ mod tests {
let gather = registry.gather();
assert_eq!(gather[0].get_name(), "parachain_activated_heads_total");
assert_eq!(gather[1].get_name(), "parachain_deactivated_heads_total");
assert_eq!(gather[2].get_name(), "parachain_from_overseer_channel_queue_sizes");
assert_eq!(gather[2].get_name(), "parachain_from_overseer_channel_queue_size");
assert_eq!(gather[3].get_name(), "parachain_messages_relayed_total");
assert_eq!(gather[4].get_name(), "parachain_overseer_messages_relay_timings");
assert_eq!(gather[5].get_name(), "parachain_to_overseer_channel_queue_sizes");
assert_eq!(gather[5].get_name(), "parachain_to_overseer_channel_queue_size");
let activated = gather[0].get_metric()[0].get_counter().get_value() as u64;
let deactivated = gather[1].get_metric()[0].get_counter().get_value() as u64;
let relayed = gather[3].get_metric()[0].get_counter().get_value() as u64;