If you have Debug is on at Site level then it will Impact the performance of the Instance, here is the script which will help you to quickly check your EBS Instance if ‘Debug’ is on (all level) of the EBS.
set linesize 160
col USER_PROFILE_OPTION_NAME for a30
col CONTEXT for a30
col VALUE for a30
col NAME for a30
SELECT po.profile_option_name "NAME",
po.USER_PROFILE_OPTION_NAME,
decode(to_char(pov.level_id),
'10001', 'SITE',
'10002', 'APP',
'10003', 'RESP',
'10005', 'SERVER',
'10006', 'ORG',
'10004', 'USER', '???') "LEV",
decode(to_char(pov.level_id),
'10001', '',
'10002', app.application_short_name,
'10003', rsp.responsibility_key,
'10005', svr.node_name,
'10006', org.name,
'10004', usr.user_name,
'???') "CONTEXT",
pov.profile_option_value "VALUE"
FROM FND_PROFILE_OPTIONS_VL po,
FND_PROFILE_OPTION_VALUES pov,
fnd_user usr,
fnd_application app,
fnd_responsibility rsp,
fnd_nodes svr,
hr_operating_units org
WHERE po.user_profile_option_name like '%Debug%'
AND pov.profile_option_value='Y'
AND pov.application_id = po.application_id
AND pov.profile_option_id = po.profile_option_id
AND usr.user_id (+) = pov.level_value
AND rsp.application_id (+) = pov.level_value_application_id
AND rsp.responsibility_id (+) = pov.level_value
AND app.application_id (+) = pov.level_value
AND svr.node_id (+) = pov.level_value
AND org.organization_id (+) = pov.level_value;
NAME USER_PROFILE_OPTION_NAME LEV CONTEXT VALUE
--------------------------- ---------------------------- ------ --------------------------- ---------------
AFLOG_ENABLED FND: Debug Log Enabled USER SA-USER1 Y
FND_CONC_ALLOW_DEBUG Concurrent: Allow Debugging RESP XXXX_CE_SUP_MY-MYR-GE Y
PRINT_DEBUG FA: Print Debug USER SA-USER2 Y
PO_SET_DEBUG_WORKFLOW_ON PO: Set Debug Workflow ON USER SA-USER3 Y
PA_DEBUG_MODE PA: Debug Mode USER SA-USER4 Y
SO_DEBUG OE: Debug SITE Y
MSC_JAVA_DEBUG MSC: Enable Java Debug SITE Y
7 rows selected.