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memory: rename commit_limit, drop free system PTEs, add standby cache lifetime (#2694)

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Co-authored-by: Claude <noreply@anthropic.com>
Signed-off-by: Claude <noreply@anthropic.com>
This commit is contained in:
Jan-Otto Kröpke
2026-10-11 23:03:30 +02:00
committed by GitHub
co-authored by Claude
parent cd7acb5618
commit 491bb0de73
17 changed files with 85 additions and 77 deletions
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contrib/mixin/dashboards/fleet.libsonnet
+1 -1
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@@ -58,7 +58,7 @@ function(on, config, overview=null)
b.query.new('(max by (instance) (100 * (1 - windows_memory_physical_free_bytes{job=~"$job"} / windows_memory_physical_total_bytes{job=~"$job"}))) and on (instance) windows_os_hostname{job=~"$job", hostname=~"$hostname"}', 'G')
+ b.query.withInstant()
+ b.query.withFormat('table'),
b.query.new('(max by (instance) (100 * windows_memory_committed_bytes{job=~"$job"} / windows_memory_commit_limit{job=~"$job"})) and on (instance) windows_os_hostname{job=~"$job", hostname=~"$hostname"}', 'H')
b.query.new('(max by (instance) (100 * windows_memory_committed_bytes{job=~"$job"} / windows_memory_commit_limit_bytes{job=~"$job"})) and on (instance) windows_os_hostname{job=~"$job", hostname=~"$hostname"}', 'H')
+ b.query.withInstant()
+ b.query.withFormat('table'),
b.query.new('(max by (instance) (100 * (1 - windows_logical_disk_free_bytes{job=~"$job", volume!~"HarddiskVolume.*"} / windows_logical_disk_size_bytes{job=~"$job", volume!~"HarddiskVolume.*"}))) and on (instance) windows_os_hostname{job=~"$job", hostname=~"$hostname"}', 'I')
contrib/mixin/dashboards/memory.libsonnet
+2 -2
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@@ -14,7 +14,7 @@ function(on)
+ b.panel.withDefaults({ decimals: 1, max: 1, min: 0 }),
b.stat(167, 'Available', 'Physical memory available to processes: the standby, free and zero page lists.', metric('physical_free_bytes'), 'bytes')
+ b.panel.withDefaults({ decimals: 1 }),
b.stat(168, 'Commit used', 'Committed virtual memory as a share of the commit limit. Allocations fail at 100%.', metric('committed_bytes') + ' / ' + metric('commit_limit'), 'percentunit', steps=b.levels(0.8, 0.9))
b.stat(168, 'Commit used', 'Committed virtual memory as a share of the commit limit. Allocations fail at 100%.', metric('committed_bytes') + ' / ' + metric('commit_limit_bytes'), 'percentunit', steps=b.levels(0.8, 0.9))
+ b.panel.withDefaults({ decimals: 1, max: 1, min: 0 }),
b.stat(169, 'Page reads', 'Hard page faults read from disk per second. Sustained page reads indicate memory pressure.', 'rate(' + metric('swap_page_reads_total') + '[$__rate_interval])', 'ops'),
b.stat(170, 'Nonpaged pool', 'Kernel memory that cannot be paged out. Steady growth can indicate a driver leak.', metric('pool_nonpaged_bytes'), 'bytes')
@@ -78,7 +78,7 @@ function(on)
+ b.panel.withQueries([
b.query.new('windows_memory_committed_bytes{job=~"$job", instance="$instance"}', 'A')
+ b.query.withLegendFormat('committed'),
b.query.new('windows_memory_commit_limit{job=~"$job", instance="$instance"}', 'B')
b.query.new('windows_memory_commit_limit_bytes{job=~"$job", instance="$instance"}', 'B')
+ b.query.withLegendFormat('limit'),
])
+ b.panel.withDefaults({
contrib/mixin/dashboards/overview.libsonnet
+1 -1
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@@ -132,7 +132,7 @@ function(on)
b.panel.new(16, 'Commit used', 'stat')
+ b.panel.withDescription('Committed virtual memory as a share of the commit limit (physical memory + page files). Allocations fail at 100%.')
+ b.panel.withQueries([
b.query.new('100 * windows_memory_committed_bytes{job=~"$job", instance="$instance"} / windows_memory_commit_limit{job=~"$job", instance="$instance"}', 'A'),
b.query.new('100 * windows_memory_committed_bytes{job=~"$job", instance="$instance"} / windows_memory_commit_limit_bytes{job=~"$job", instance="$instance"}', 'A'),
])
+ b.panel.withDefaults({
decimals: 1,
contrib/mixin/lib/queries.libsonnet
+1 -1
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@@ -18,7 +18,7 @@ function(c)
self.metric('windows_logical_disk_size_bytes', [c.volumeSelector])
),
memoryCommitted:
self.ratio(self.metric('windows_memory_committed_bytes'), self.metric('windows_memory_commit_limit')),
self.ratio(self.metric('windows_memory_committed_bytes'), self.metric('windows_memory_commit_limit_bytes')),
diskLatency(direction):
self.ratio(
self.rate('windows_logical_disk_%s_seconds_total' % direction, [c.volumeSelector]),
contrib/mixin/tests/alerts.test.yaml
+2 -2
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@@ -12,7 +12,7 @@ tests:
input_series:
- series: 'windows_memory_committed_bytes{job="windows_exporter", instance="host:9182", cluster="a"}'
values: '95x20 50x10'
- series: 'windows_memory_commit_limit{job="windows_exporter", instance="host:9182", cluster="a"}'
- series: 'windows_memory_commit_limit_bytes{job="windows_exporter", instance="host:9182", cluster="a"}'
values: '100x31'
- series: 'windows_logical_disk_read_seconds_total{job="windows_exporter", instance="host:9182", cluster="a", volume="C:"}'
values: '0+12x20 252x10'
@@ -87,7 +87,7 @@ tests:
input_series:
- series: 'windows_memory_committed_bytes{job="windows_exporter", instance="host:9182"}'
values: '90x20'
- series: 'windows_memory_commit_limit{job="windows_exporter", instance="host:9182"}'
- series: 'windows_memory_commit_limit_bytes{job="windows_exporter", instance="host:9182"}'
values: '100x20'
- series: 'windows_logical_disk_read_seconds_total{job="windows_exporter", instance="host:9182", volume="C:"}'
values: '0+6x20'
contrib/mixin/tests/custom.test.yaml
+2 -2
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@@ -14,11 +14,11 @@ tests:
input_series:
- series: 'windows_memory_committed_bytes{job="windows-custom", instance="host:9182", cluster="test"}'
values: '85x20'
- series: 'windows_memory_commit_limit{job="windows-custom", instance="host:9182", cluster="test"}'
- series: 'windows_memory_commit_limit_bytes{job="windows-custom", instance="host:9182", cluster="test"}'
values: '100x20'
- series: 'windows_memory_committed_bytes{job="windows-custom", instance="host:9182", cluster="prod"}'
values: '99x20'
- series: 'windows_memory_commit_limit{job="windows-custom", instance="host:9182", cluster="prod"}'
- series: 'windows_memory_commit_limit_bytes{job="windows-custom", instance="host:9182", cluster="prod"}'
values: '100x20'
- series: 'windows_logical_disk_read_seconds_total{job="windows-custom", instance="host:9182", cluster="test", volume="C:"}'
values: '0+3.6x20'
contrib/mixin/tests/resources.test.yaml
+3 -3
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@@ -22,13 +22,13 @@ tests:
values: '50x10'
- series: 'windows_memory_committed_bytes{job="windows_exporter", instance="host:9182", cluster="a"}'
values: '80x10'
- series: 'windows_memory_commit_limit{job="windows_exporter", instance="host:9182", cluster="a"}'
- series: 'windows_memory_commit_limit_bytes{job="windows_exporter", instance="host:9182", cluster="a"}'
values: '100x10'
- series: 'windows_memory_swap_page_operations_total{job="windows_exporter", instance="host:9182", cluster="a"}'
values: '0+120x10'
- series: 'windows_memory_committed_bytes{job="other", instance="host:9182"}'
values: '95x10'
- series: 'windows_memory_commit_limit{job="other", instance="host:9182"}'
- series: 'windows_memory_commit_limit_bytes{job="other", instance="host:9182"}'
values: '100x10'
promql_expr_test:
- expr: windows:memory_cached:bytes
@@ -153,7 +153,7 @@ tests:
values: '0x20'
- series: 'windows_memory_committed_bytes{job="windows_exporter", instance="host:9182"}'
values: '1x20'
- series: 'windows_memory_commit_limit{job="windows_exporter", instance="host:9182"}'
- series: 'windows_memory_commit_limit_bytes{job="windows_exporter", instance="host:9182"}'
values: '0x20'
- series: 'windows_logical_disk_read_seconds_total{job="windows_exporter", instance="host:9182", volume="C:"}'
values: '0x20'