AttributeOperationStats contains statistics regarding manipulation of XFS extended file attributes.
type AttributeOperationStats struct {
Get uint32
Set uint32
Remove uint32
List uint32
}
BTreeStats contains statistics regarding an XFS internal B-tree.
type BTreeStats struct {
Lookups uint32
Compares uint32
RecordsInserted uint32
RecordsDeleted uint32
}
BlockMappingStats contains statistics regarding XFS block maps.
type BlockMappingStats struct {
Reads uint32
Writes uint32
Unmaps uint32
ExtentListInsertions uint32
ExtentListDeletions uint32
ExtentListLookups uint32
ExtentListCompares uint32
}
BtreeAllocBlocks2Stats contains statistics on B-Tree v2 allocations.
type BtreeAllocBlocks2Stats struct {
Lookup uint32
Compare uint32
Insrec uint32
Delrec uint32
NewRoot uint32
KillRoot uint32
Increment uint32
Decrement uint32
Lshift uint32
Rshift uint32
Split uint32
Join uint32
Alloc uint32
Free uint32
Moves uint32
}
BtreeAllocContig2Stats contain statistics on B-tree v2 free-space-by-size record operations.
type BtreeAllocContig2Stats struct {
Lookup uint32
Compare uint32
Insrec uint32
Delrec uint32
NewRoot uint32
KillRoot uint32
Increment uint32
Decrement uint32
Lshift uint32
Rshift uint32
Split uint32
Join uint32
Alloc uint32
Free uint32
Moves uint32
}
BtreeBlockMap2Stats contain statistics on B-tree v2 block map operations.
type BtreeBlockMap2Stats struct {
Lookup uint32
Compare uint32
Insrec uint32
Delrec uint32
NewRoot uint32
KillRoot uint32
Increment uint32
Decrement uint32
Lshift uint32
Rshift uint32
Split uint32
Join uint32
Alloc uint32
Free uint32
Moves uint32
}
BtreeInode2Stats contain statistics on B-tree v2 inode allocations.
type BtreeInode2Stats struct {
Lookup uint32
Compare uint32
Insrec uint32
Delrec uint32
NewRoot uint32
KillRoot uint32
Increment uint32
Decrement uint32
Lshift uint32
Rshift uint32
Split uint32
Join uint32
Alloc uint32
Free uint32
Moves uint32
}
BufferStats contains statistics regarding XFS read/write I/O buffers.
type BufferStats struct {
Get uint32
Create uint32
GetLocked uint32
GetLockedWaited uint32
BusyLocked uint32
MissLocked uint32
PageRetries uint32
PageFound uint32
GetRead uint32
}
DebugStats indicate if XFS debugging is enabled.
type DebugStats struct {
Enabled uint32
}
DirectoryOperationStats contains statistics regarding XFS directory entries.
type DirectoryOperationStats struct {
Lookups uint32
Creates uint32
Removes uint32
Getdents uint32
}
ExtendedPrecisionStats contains high precision counters used to track the total number of bytes read, written, or flushed, during XFS operations.
type ExtendedPrecisionStats struct {
FlushBytes uint64
WriteBytes uint64
ReadBytes uint64
}
ExtentAllocationStats contains statistics regarding XFS extent allocations.
type ExtentAllocationStats struct {
ExtentsAllocated uint32
BlocksAllocated uint32
ExtentsFreed uint32
BlocksFreed uint32
}
FS represents the pseudo-filesystems proc and sys, which provides an interface to kernel data structures.
type FS struct {
// contains filtered or unexported fields
}
func NewDefaultFS() (FS, error)
NewDefaultFS returns a new XFS handle using the default proc and sys mountPoints. It will error if either of the mounts point can't be read.
func NewFS(procMountPoint string, sysMountPoint string) (FS, error)
NewFS returns a new XFS handle using the given proc and sys mountPoints. It will error if either of the mounts point can't be read.
func (fs FS) ProcStat() (*Stats, error)
ProcStat retrieves XFS filesystem runtime statistics from proc/fs/xfs/stat given the profs mount point.
func (fs FS) SysStats() ([]*Stats, error)
SysStats retrieves XFS filesystem runtime statistics for each mounted XFS filesystem. Only available on kernel 4.4+. On older kernels, an empty slice of *xfs.Stats will be returned.
InodeClusteringStats contains statistics regarding XFS inode clustering operations.
type InodeClusteringStats struct {
Iflush uint32
Flush uint32
FlushInode uint32
}
InodeOperationStats contains statistics regarding XFS inode operations.
type InodeOperationStats struct {
Attempts uint32
Found uint32
Recycle uint32
Missed uint32
Duplicate uint32
Reclaims uint32
AttributeChange uint32
}
LogOperationStats contains statistics regarding the XFS log buffer.
type LogOperationStats struct {
Writes uint32
Blocks uint32
NoInternalBuffers uint32
Force uint32
ForceSleep uint32
}
PushAilStats contains statistics on tail-pushing operations.
type PushAilStats struct {
TryLogspace uint32
SleepLogspace uint32
Pushes uint32
Success uint32
PushBuf uint32
Pinned uint32
Locked uint32
Flushing uint32
Restarts uint32
Flush uint32
}
QuotaManagerStats contain statistics regarding quota processing.
type QuotaManagerStats struct {
Reclaims uint32
ReclaimMisses uint32
DquoteDups uint32
CacheMisses uint32
CacheHits uint32
Wants uint32
ShakeReclaims uint32
InactReclaims uint32
Unused uint32
}
ReadWriteStats contains statistics regarding the number of read and write system calls for XFS filesystems.
type ReadWriteStats struct {
Write uint32
Read uint32
}
Stats contains XFS filesystem runtime statistics, parsed from /proc/fs/xfs/stat.
The names and meanings of each statistic were taken from http://xfs.org/index.php/Runtime_Stats and xfs_stats.h in the Linux kernel source. Most counters are uint32s (same data types used in xfs_stats.h), but some of the "extended precision stats" are uint64s.
type Stats struct {
// The name of the filesystem used to source these statistics.
// If empty, this indicates aggregated statistics for all XFS
// filesystems on the host.
Name string
ExtentAllocation ExtentAllocationStats
AllocationBTree BTreeStats
BlockMapping BlockMappingStats
BlockMapBTree BTreeStats
DirectoryOperation DirectoryOperationStats
Transaction TransactionStats
InodeOperation InodeOperationStats
LogOperation LogOperationStats
ReadWrite ReadWriteStats
AttributeOperation AttributeOperationStats
InodeClustering InodeClusteringStats
Vnode VnodeStats
Buffer BufferStats
ExtendedPrecision ExtendedPrecisionStats
Xstrat XstratStats // xstrat
PushAil PushAilStats // push_ail
Debug DebugStats // debug
QuotaManager QuotaManagerStats // qm
BtreeAllocBlocks2 BtreeAllocBlocks2Stats // abtb2
BtreeAllocContig2 BtreeAllocContig2Stats // abtc2
BtreeBlockMap2 BtreeBlockMap2Stats // bmbt2
BtreeInode2 BtreeInode2Stats // ibt2
}
func ParseStats(r io.Reader) (*Stats, error)
ParseStats parses a Stats from an input io.Reader, using the format found in /proc/fs/xfs/stat.
TransactionStats contains statistics regarding XFS metadata transactions.
type TransactionStats struct {
Sync uint32
Async uint32
Empty uint32
}
VnodeStats contains statistics regarding XFS vnode operations.
type VnodeStats struct {
Active uint32
Allocate uint32
Get uint32
Hold uint32
Release uint32
Reclaim uint32
Remove uint32
Free uint32
}
XstratStats contains statistics regarding bytes processed by the XFS daemon.
type XstratStats struct {
Quick uint32
Split uint32
}