This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
# Log and graph peformance metrics on a single process | |
# Based on: http://brunogirin.blogspot.com.au/2010/09/memory-usage-graphs-with-ps-and-gnuplot.html | |
# | |
# Requires gnuplot to be installed and on your path. | |
# | |
# Run: ./process_graph [process name] [pid] | |
DEFAULT_PROCNAME="Xorg" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
--- PSQL queries which also duplicated from https://github.com/anvk/AwesomePSQLList/blob/master/README.md | |
--- some of them taken from https://www.slideshare.net/alexeylesovsky/deep-dive-into-postgresql-statistics-54594192 | |
-- I'm not an expert in PSQL. Just a developer who is trying to accumulate useful stat queries which could potentially explain problems in your Postgres DB. | |
------------ | |
-- Basics -- | |
------------ | |
-- Get indexes of tables |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
# Add to instance metadata with `gcloud compute instances add-metadata \ | |
# instance-name --metadata-from-file startup-script=idle-shutdown.sh` and reboot | |
# NOTE: requires `bc`, eg, sudo apt-get install bc | |
# Modified from https://stackoverflow.com/questions/30556920/how-can-i-automatically-kill-idle-gce-instances-based-on-cpu-usage | |
threshold=0.1 | |
count=0 | |
wait_minutes=60 | |
while true |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
-- index usage stats | |
SELECT | |
relname, | |
100 * idx_scan / (seq_scan + idx_scan) percent_of_times_index_used, | |
n_live_tup rows_in_table | |
FROM | |
pg_stat_user_tables | |
WHERE | |
seq_scan + idx_scan > 0 | |
ORDER BY |