GV$SESSMETRIC definition in Oracle Database 10.2 / www.oracledba.ru
GV$SESSMETRIC
SELECT
inst_id, -- INST_ID NUMBER
begtime, -- BEGIN_TIME DATE
endtime, -- END_TIME DATE
intsize_csec, -- INTSIZE_CSEC NUMBER
sessid, -- SESSION_ID NUMBER
sernum, -- SERIAL_NUM NUMBER
cpu, -- CPU NUMBER
phyrds, -- PHYSICAL_READS NUMBER
logrds, -- LOGICAL_READS NUMBER
pga_memory, -- PGA_MEMORY NUMBER
hard_parses, -- HARD_PARSES NUMBER
soft_parses, -- SOFT_PARSES NUMBER
phyrds_pct, -- PHYSICAL_READ_PCT NUMBER
logrds_pct -- LOGICAL_READ_PCT NUMBER
FROM
x$kewmsemv
WHERE
flag1 = 1