how to interpret this oradebug info ?

Jan 14, 2013 9:05AM

AIT #18446744071441764608: nam='db file sequential read' ela= 7762 file#=94 block#=3473609 blocks=1 obj#=337451 tim=357394577431

WAIT #18446744071441764608: nam='db file sequential read' ela= 445 file#=94 block#=3469873 blocks=1 obj#=337451 tim=357394578612

WAIT #18446744071441764608: nam='db file sequential read' ela= 710 file#=94 block#=1080993 blocks=1 obj#=337451 tim=357394583024

WAIT #18446744071441764608: nam='db file sequential read' ela= 566 file#=94 block#=1080994 blocks=1 obj#=337451 tim=357394584027

WAIT #18446744071441764608: nam='db file sequential read' ela= 410 file#=94 block#=355400 blocks=1 obj#=337451 tim=357394586883

WAIT #18446744071441764608: nam='db file sequential read' ela= 6662 file#=94 block#=3474112 blocks=1 obj#=337451 tim=357394594585

EXEC #18446744071441764608:c=3850000,e=13989392,p=4777,cr=7354,cu=35034,mis=0,r=4958,dep=1,og=1,plh=1588734741,tim=357394596091

CLOSE #18446744071441764608:c=0,e=10,dep=1,type=3,tim=357394596450

XCTEND rlbk=0, rd_only=0, tim=357394596681

EXEC #18446744071441762240:c=20000,e=17231,p=0,cr=0,cu=1,mis=0,r=0,dep=1,og=0,plh=0,tim=357394613876

Database Administration (MOSC)