mirror of
https://github.com/genuinetools/reg.git
synced 2024-08-22 22:40:24 -04:00
85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
// Copyright 2017 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// Package bcache provides access to statistics exposed by the bcache (Linux
|
|
// block cache).
|
|
package bcache
|
|
|
|
// Stats contains bcache runtime statistics, parsed from /sys/fs/bcache/.
|
|
//
|
|
// The names and meanings of each statistic were taken from bcache.txt and
|
|
// files in drivers/md/bcache in the Linux kernel source. Counters are uint64
|
|
// (in-kernel counters are mostly unsigned long).
|
|
type Stats struct {
|
|
// The name of the bcache used to source these statistics.
|
|
Name string
|
|
Bcache BcacheStats
|
|
Bdevs []BdevStats
|
|
Caches []CacheStats
|
|
}
|
|
|
|
// BcacheStats contains statistics tied to a bcache ID.
|
|
type BcacheStats struct {
|
|
AverageKeySize uint64
|
|
BtreeCacheSize uint64
|
|
CacheAvailablePercent uint64
|
|
Congested uint64
|
|
RootUsagePercent uint64
|
|
TreeDepth uint64
|
|
Internal InternalStats
|
|
FiveMin PeriodStats
|
|
Total PeriodStats
|
|
}
|
|
|
|
// BdevStats contains statistics for one backing device.
|
|
type BdevStats struct {
|
|
Name string
|
|
DirtyData uint64
|
|
FiveMin PeriodStats
|
|
Total PeriodStats
|
|
}
|
|
|
|
// CacheStats contains statistics for one cache device.
|
|
type CacheStats struct {
|
|
Name string
|
|
IOErrors uint64
|
|
MetadataWritten uint64
|
|
Written uint64
|
|
Priority PriorityStats
|
|
}
|
|
|
|
// PriorityStats contains statistics from the priority_stats file.
|
|
type PriorityStats struct {
|
|
UnusedPercent uint64
|
|
MetadataPercent uint64
|
|
}
|
|
|
|
// InternalStats contains internal bcache statistics.
|
|
type InternalStats struct {
|
|
ActiveJournalEntries uint64
|
|
BtreeNodes uint64
|
|
BtreeReadAverageDurationNanoSeconds uint64
|
|
CacheReadRaces uint64
|
|
}
|
|
|
|
// PeriodStats contains statistics for a time period (5 min or total).
|
|
type PeriodStats struct {
|
|
Bypassed uint64
|
|
CacheBypassHits uint64
|
|
CacheBypassMisses uint64
|
|
CacheHits uint64
|
|
CacheMissCollisions uint64
|
|
CacheMisses uint64
|
|
CacheReadaheads uint64
|
|
}
|