114 lines
5.4 KiB
SQL
114 lines
5.4 KiB
SQL
--
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-- show have fast scan operations
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-- (sorting / hashing / table scans / index scans) will take
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--
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-- provides a MB/second metric that can be used to compare different systems
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-- has plenty of flaws yet still works great
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--
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-- also provides an expected end time for the operation
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-- though this can be misleading
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--
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-- usage is: @SHOWALLSCANRATES
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--
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--clear breaks
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--clear computes
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--clear columns
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col time_remaining head 'Seconds|Remaining'
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col scanned_blocks head 'Scanned Blocks|or Indexes'
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col all_blocks head 'All Blocks|or Indexes'
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col blocks_remaining head 'Blocks|or Indexes|Remaining' noprint
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col opname format a16
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col target format a40
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col username format a15
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col MB_per_Second form 990.0 head 'MB/s'
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col pct_scanned head '%Scanned' format 990.00
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col predicted_runtime_seconds head 'Estmd.|Runtime|Seconds'
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col total_blocks head 'Total|Blocks|or|Indexes'
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col sid format 99990
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col block_size format 99990 head 'Block|Size'
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col id_passes_temp format a25
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break on inst_id skip page
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with
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scan_data as (
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select
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to_number(
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substr(a.message
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,instr(a.message,': ',1,2)+2
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,instr(a.message,' out of ',1,1)-instr(a.message,': ',1,2)-1
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)
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)
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/ to_number(
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substr(a.message
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,instr(a.message,' out of ',1,1)+8
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,instr(a.message,' ',instr(a.message,' out of ',1,1)+8)-instr(a.message,' out of ',1,1)-7
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)
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) *100 pct_scanned
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, to_number(
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substr(a.message
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,instr(a.message,' out of ',1,1)+8
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,instr(a.message,' ',instr(a.message,' out of ',1,1)+8)-instr(a.message,' out of ',1,1)-7
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)
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)
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- to_number(
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substr(a.message
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,instr(a.message,': ',1,2)+2
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,instr(a.message,' out of ',1,1)-instr(a.message,': ',1,2)-1
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)
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) blocks_remaining
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, a.time_remaining
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, a.opname
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, to_number(b.value) block_size
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, a.target
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, a.sid
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, a.inst_id
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, a.username
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, a.sql_hash_value
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from (
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select
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replace(gv$session_longops.message,'RMAN:','RMAN') message
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, gv$session_longops.time_remaining
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, gv$session_longops.opname
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, nvl(gv$session_longops.target,replace(gv$session_longops.target_desc,'Table ')) target
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, gv$session_longops.sid
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, gv$session_longops.inst_id
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, gv$session_longops.username
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, gv$session_longops.sql_hash_value
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from gv$session_longops
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, gv$session
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where gv$session_longops.sid = gv$session.sid
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and gv$session_longops.inst_id = gv$session.inst_id
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and gv$session_longops.sid = gv$session.sid
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and gv$session_longops.serial# = gv$session.serial#
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and gv$session_longops.time_remaining > 0
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) a
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,(select value from gv$parameter where name = 'db_block_size' and rownum = 1) b
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)
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select
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scan_data.inst_id
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, round(blocks_remaining*block_size/1024/1024/time_remaining,1) MB_per_Second
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, scan_data.time_remaining
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, round(time_remaining/(1-pct_scanned/100)) predicted_runtime_seconds
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, scan_data.pct_scanned
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, scan_data.blocks_remaining
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, round(blocks_remaining/(1-pct_scanned/100)) total_blocks
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, scan_data.opname
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, scan_data.BLOCK_SIZE
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, scan_data.target
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, (
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select
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max(operation_id)||':'||DECODE(MAX(NUMBER_PASSES),0,'OPTIMAL',1,'ONE-PASS',NULL,NULL,'MULTI-PASS('||max(number_passes)||')')||DECODE(max(TEMPSEG_SIZE),NULL,NULL,','||round(max(TEMPSEG_SIZE)/1024/1024)||'M')
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from gv$sql_workarea_active
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where gv$sql_workarea_active.sid = scan_data.sid
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and gv$sql_workarea_active.inst_id = scan_data.inst_id
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-- and scan_data.opname in ('Hash Join','Sort Output')
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-- and gv$sql_workarea_active.OPERATION_TYPE in ('HASH-JOIN','SORT','WINDOW (SORT)','GROUP BY (SORT)')
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) id_passes_temp
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, scan_data.sid
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, scan_data.username
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, scan_data.sql_hash_value
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from scan_data
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order by inst_id,username,sid,time_remaining
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/
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