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dashboard: use counters for disk queue length and VHD latency (#2582)

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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
This commit is contained in:
Jan-Otto Kröpke
2026-10-09 13:57:40 +02:00
committed by GitHub
co-authored by Claude Opus 5.5
parent fa3abe8c3c
commit 59d981b6c8
3 changed files with 10 additions and 10 deletions
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dashboard/windows-exporter-dashboard.json
+5 -5
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@@ -9237,7 +9237,7 @@
"kind": "DataQuery",
"spec": {
"editorMode": "code",
"expr": "rate(windows_logical_disk_avg_write_requests_queued{job=~\"$job\", instance=\"$instance\", volume=~\"$volume\"}[$__rate_interval])",
"expr": "rate(windows_logical_disk_write_seconds_total{job=~\"$job\", instance=\"$instance\", volume=~\"$volume\"}[$__rate_interval])",
"instant": false,
"legendFormat": "{{volume}} write",
"range": true
@@ -9259,7 +9259,7 @@
"kind": "DataQuery",
"spec": {
"editorMode": "code",
"expr": "rate(windows_logical_disk_avg_read_requests_queued{job=~\"$job\", instance=\"$instance\", volume=~\"$volume\"}[$__rate_interval])",
"expr": "rate(windows_logical_disk_read_seconds_total{job=~\"$job\", instance=\"$instance\", volume=~\"$volume\"}[$__rate_interval])",
"instant": false,
"legendFormat": "{{volume}} read",
"range": true
@@ -9274,7 +9274,7 @@
"transformations": []
}
},
"description": "Average number of read and write requests queued for the volume. Reads are drawn below the axis. A queue that stays high while latency rises indicates a disk bottleneck. The avg_*_requests_queued metrics grow like counters, so the panel takes their rate.",
"description": "Average number of read and write requests queued for the volume. Reads are drawn below the axis. A queue that stays high while latency rises indicates a disk bottleneck.",
"id": 43,
"links": [],
"title": "Disk queue length",
@@ -13291,7 +13291,7 @@
"kind": "DataQuery",
"spec": {
"editorMode": "code",
"expr": "rate(windows_hyperv_virtual_storage_device_latency_seconds{job=~\"$job\", instance=\"$instance\"}[$__rate_interval]) / (rate(windows_hyperv_virtual_storage_device_operations_read_total{job=~\"$job\", instance=\"$instance\"}[$__rate_interval]) + rate(windows_hyperv_virtual_storage_device_operations_written_total{job=~\"$job\", instance=\"$instance\"}[$__rate_interval])) / 1e7",
"expr": "rate(windows_hyperv_virtual_storage_device_io_latency_seconds_total{job=~\"$job\", instance=\"$instance\"}[$__rate_interval]) / rate(windows_hyperv_virtual_storage_device_throughput_total{job=~\"$job\", instance=\"$instance\"}[$__rate_interval])",
"instant": false,
"legendFormat": "{{device}} latency",
"range": true
@@ -13328,7 +13328,7 @@
"transformations": []
}
},
"description": "Average I/O latency of each virtual disk. windows_hyperv_virtual_storage_device_latency_seconds holds the raw, growing counter in 100 ns ticks, so the panel divides its rate by the rate of I/O operations. Errors use the right axis.",
"description": "Average I/O latency of each virtual disk. Errors use the right axis.",
"id": 78,
"links": [],
"title": "Virtual disk latency and errors",