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sqliteviz/lib/sql-js/benchmark/procpath/top2_cpu.sql
saaj e4b117ffb9 Sqljs upgrade and benchmark improvements (#103)
* Update to sql.js 1.7.0

* Update to emsdk 3.0.1, replace/remove deprecated/irrelevant settings

- Renamed .bc extension to .o
- Remove deprecated INLINING_LIMIT setting
- Remove SINGLE_FILE

* Update SQLite to 3.39.3

* Collect and plot CPU and RSS charts from the benchmark containers

* Move procpath commands to a playbook, plot only top 2 RSS & CPU usage

* Optimise for size, put -flto for both compile and link
2023-03-04 17:00:46 +01:00

30 lines
751 B
SQL

WITH diff_all AS (
SELECT
record_id,
ts,
stat_pid,
stat_utime + stat_stime - LAG(stat_utime + stat_stime) OVER (
PARTITION BY stat_pid
ORDER BY record_id
) tick_diff,
ts - LAG(ts) OVER (
PARTITION BY stat_pid
ORDER BY record_id
) ts_diff
FROM record
), diff AS (
SELECT * FROM diff_all WHERE tick_diff IS NOT NULL
), one_time_pid_condition AS (
SELECT stat_pid
FROM record
GROUP BY 1
ORDER BY SUM(stat_utime + stat_stime) DESC
LIMIT 2
)
SELECT
ts,
stat_pid pid,
100.0 * tick_diff / (SELECT value FROM meta WHERE key = 'clock_ticks') / ts_diff value
FROM diff
JOIN one_time_pid_condition USING(stat_pid)