2026-03-12 20:23:15
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154
csierra/cs_osstat_cpu_util_perc_chart.sql
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154
csierra/cs_osstat_cpu_util_perc_chart.sql
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----------------------------------------------------------------------------------------
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--
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-- File name: cs_osstat_cpu_util_perc_chart.sql
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--
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-- Purpose: CPU Utilization Percent Chart (AWR) - 15m Granularity
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--
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-- Author: Carlos Sierra
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--
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-- Version: 2022/10/03
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--
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-- Usage: Execute connected to CDB or PDB
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--
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-- Enter range of dates when requested.
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--
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-- Example: $ sqlplus / as sysdba
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-- SQL> @cs_osstat_cpu_util_perc_chart.sql
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--
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-- Notes: Developed and tested on 19c
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--
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---------------------------------------------------------------------------------------
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--
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@@cs_internal/cs_primary.sql
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@@cs_internal/cs_set.sql
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@@cs_internal/cs_def.sql
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@@cs_internal/cs_file_prefix.sql
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--
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DEF cs_script_name = 'cs_osstat_cpu_util_perc_chart';
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DEF cs_hours_range_default = '168';
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--
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@@cs_internal/cs_sample_time_from_and_to.sql
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@@cs_internal/cs_snap_id_from_and_to.sql
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--
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--@@cs_internal/&&cs_set_container_to_cdb_root.
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--
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SELECT '&&cs_file_prefix._&&cs_script_name.' cs_file_name FROM DUAL;
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--
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DEF report_title = 'CPU Utilization Percent between &&cs_sample_time_from. and &&cs_sample_time_to. UTC';
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DEF chart_title = '&&report_title.';
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DEF xaxis_title = '';
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DEF vaxis_title = '';
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--
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-- (isStacked is true and baseline is null) or (not isStacked and baseline >= 0)
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--DEF is_stacked = "isStacked: false,";
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DEF is_stacked = "isStacked: true,";
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--DEF vaxis_baseline = ", baseline:&&cs_num_cpu_cores., baselineColor:'red'";
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DEF vaxis_baseline = "";
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DEF chart_foot_note_2 = "<br>2) SEV2 (critical state, engage IOD)";
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DEF chart_foot_note_3 = "<br>3) SEV3 (migrate out some PDBs)";
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DEF chart_foot_note_4 = "<br>4) SEV4 (suspend new PDB allocation)<br>";
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DEF report_foot_note = 'SQL> @&&cs_script_name..sql "&&cs_sample_time_from." "&&cs_sample_time_to."';
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--
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@@cs_internal/cs_spool_head_chart.sql
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--
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PRO ,{label:'SEV2', id:'1', type:'number'}
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PRO ,{label:'SEV3', id:'2', type:'number'}
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PRO ,{label:'SEV4', id:'3', type:'number'}
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PRO ,{label:'CPU Util Perc', id:'4', type:'number'}
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PRO ]
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--
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SET HEA OFF PAGES 0;
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/****************************************************************************************/
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WITH
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FUNCTION num_format (p_number IN NUMBER, p_round IN NUMBER DEFAULT 0)
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RETURN VARCHAR2 IS
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BEGIN
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IF p_number IS NULL OR ROUND(p_number, p_round) <= 0 THEN
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RETURN 'null';
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ELSE
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RETURN TO_CHAR(ROUND(p_number, p_round));
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END IF;
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END num_format;
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/****************************************************************************************/
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osstat_filtered AS (
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SELECT s.end_interval_time,
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o.stat_name,
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CASE
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WHEN o.stat_name = 'NUM_CPUS' THEN o.value
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WHEN o.stat_name IN ('BUSY_TIME', 'IDLE_TIME') THEN o.value - LAG(o.value) OVER (PARTITION BY o.stat_name ORDER BY s.end_interval_time)
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END AS value
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FROM dba_hist_osstat o,
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dba_hist_snapshot s
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WHERE s.dbid = (SELECT dbid FROM v$database)
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AND s.end_interval_time BETWEEN TO_DATE('&&cs_sample_time_from.', '&&cs_datetime_full_format.') - (2/24) AND TO_DATE('&&cs_sample_time_to.', '&&cs_datetime_full_format.')
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AND o.snap_id = s.snap_id
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AND o.dbid = s.dbid
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AND o.instance_number = s.instance_number
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AND o.stat_name IN ('BUSY_TIME', 'IDLE_TIME', 'NUM_CPUS')
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),
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osstat_aggregated AS (
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SELECT end_interval_time,
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SUM(CASE stat_name WHEN 'BUSY_TIME' THEN value ELSE 0 END) AS busy_time,
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SUM(CASE stat_name WHEN 'IDLE_TIME' THEN value ELSE 0 END) AS idle_time,
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SUM(CASE stat_name WHEN 'NUM_CPUS' THEN value ELSE 0 END) AS num_cpus
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FROM osstat_filtered
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WHERE value IS NOT NULL
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AND end_interval_time BETWEEN TO_DATE('&&cs_sample_time_from.', '&&cs_datetime_full_format.') AND TO_DATE('&&cs_sample_time_to.', '&&cs_datetime_full_format.')
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GROUP BY
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end_interval_time
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),
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my_query AS (
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SELECT end_interval_time AS time,
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-- 0.7 * num_cpus AS sev2,
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-- 0.6 * num_cpus AS sev3,
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-- 0.5 * num_cpus AS sev4,
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70 AS sev2,
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60 AS sev3,
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50 AS sev4,
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100 * busy_time / (busy_time + idle_time) AS cpu_util_perc
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FROM osstat_aggregated
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WHERE busy_time + idle_time > 0
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)
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/****************************************************************************************/
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SELECT ', [new Date('||
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TO_CHAR(q.time, 'YYYY')|| /* year */
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','||(TO_NUMBER(TO_CHAR(q.time, 'MM')) - 1)|| /* month - 1 */
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','||TO_CHAR(q.time, 'DD')|| /* day */
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','||TO_CHAR(q.time, 'HH24')|| /* hour */
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','||TO_CHAR(q.time, 'MI')|| /* minute */
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','||TO_CHAR(q.time, 'SS')|| /* second */
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')'||
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','||num_format(q.sev2)||
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','||num_format(q.sev3)||
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','||num_format(q.sev4)||
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','||num_format(q.cpu_util_perc, 1)||
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']'
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FROM my_query q
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ORDER BY
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q.time
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/
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/****************************************************************************************/
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SET HEA ON PAGES 100;
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--
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-- [Line|Area|SteppedArea|Scatter]
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DEF cs_chart_type = 'Line';
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-- disable explorer with "//" when using Pie
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DEF cs_chart_option_explorer = '';
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-- enable pie options with "" when using Pie
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DEF cs_chart_option_pie = '//';
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-- use oem colors
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DEF cs_oem_colors_series = '//';
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DEF cs_oem_colors_slices = '//';
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-- for line charts
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DEF cs_curve_type = '//';
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--
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@@cs_internal/cs_spool_id_chart.sql
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@@cs_internal/cs_spool_tail_chart.sql
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PRO
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PRO &&report_foot_note.
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--
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--@@cs_internal/&&cs_set_container_to_curr_pdb.
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--
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@@cs_internal/cs_undef.sql
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@@cs_internal/cs_reset.sql
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--
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