DESC sys.io_global_by_file_by_latency;
Field	Type	Null	Key	Default	Extra
file	varchar(512)	YES		NULL
total	bigint(20) unsigned	NO		NULL
total_latency	text	YES		NULL
count_read	bigint(20) unsigned	NO		NULL
read_latency	text	YES		NULL
count_write	bigint(20) unsigned	NO		NULL
write_latency	text	YES		NULL
count_misc	bigint(20) unsigned	NO		NULL
misc_latency	text	YES		NULL
SELECT * FROM sys.io_global_by_file_by_latency;
DESC sys.x$io_global_by_file_by_latency;
Field	Type	Null	Key	Default	Extra
file	varchar(512)	NO		NULL
total	bigint(20) unsigned	NO		NULL
total_latency	bigint(20) unsigned	NO		NULL
count_read	bigint(20) unsigned	NO		NULL
read_latency	bigint(20) unsigned	NO		NULL
count_write	bigint(20) unsigned	NO		NULL
write_latency	bigint(20) unsigned	NO		NULL
count_misc	bigint(20) unsigned	NO		NULL
misc_latency	bigint(20) unsigned	NO		NULL
SELECT * FROM sys.x$io_global_by_file_by_latency;
