Input Files

The following is a list of the files read by collectl to support the different types of data being collected. Also included are the basic linux commands that should produce the same numbers as collectl for those times you may want to know if you've uncovered a collectl problem OR it's a linux problem. The one exception is Infiniband data which is obtained by the perfquery OFED utility as noted.

Subsystem	File(s)	Commands
Buddy	/proc/budyinfo	cat /proc/buddyinfo
CPU	/proc/loadavg	mpstat, iostat -c, vmstat
	/proc/stat
Disk	/proc/diskstats	iostat -d, iostat -x
	/proc/partitions
	/proc/stat
Inode	/proc/sys/fs/dentry-state	sar -v
	/proc/sys/fs/dquot-nr
	/proc/sys/fs/file-nr
	/proc/sys/fs/inode-state
	/proc/sys/fs/super-nr
Interrupts	/proc/interrupts
Interconnect	/proc/qsnet/ep/rail[0-1]/stats	perfquery
	perfquery *
Lustre	/proc/fs/lustre/llite/.../stats
	/proc/fs/lustre/llite/.../read_ahead_stats
	/proc/fs/lustre/mdt/MDT/mds/stats
	/proc/fs/lustre/osc/OST_...client.../stats
	/proc/fs/lustre/obdfilter/OST_.../stats
	/proc/fs/lustre/obdfilter/OST_.../brw_stats
	/proc/fs/lustre/osc/OSC...mds.../stats
Memory	/proc/meminfo	sar -rB, free, vmstat
	/proc/vmstat
	/sys/device/system/node/node*/meminfo/
	/sys/device/system/node/node*/numastat/
Network	/proc/net/dev	netstat -i
NFS	/proc/net/rpc/nfs	nfsstat -c/s [c if -o C]
	/proc/net/rpc/nfsd
Process	/proc/pid/cmdline	ps or top
	/proc/pid/io
	/proc/pid/stat
	/proc/pid/status
Slab	/proc/slabinfo	slabtop
	/sys/slab/object_size
	/sys/slab/objects
	/sys/slab/objs_per_slab
	/sys/slab/order
	/sys/slab/slab_size
	/sys/slab/slabs
Socket	/proc/net/sockstat	sar -n SOCK
Tcp	/proc/net/netstat

updated Sept 15, 2011