The prep-script.sh will setup the latest Node and install the latest perf version on your Linux box.
When you want to generate the flame graph, run the following (folder locations taken from install script):
sudo sysctl kernel.kptr_restrict=0
# May also have to do the following:
# (additional reading http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar )
sudo sysctl kernel.perf_event_paranoid=0
This Grub Init Tune will make your computer sound like a Super Mushroom every time you turn it on! This only works for the Grub bootloader - this generally means you need to have Linux (or other Grub-based OS) installed.
Here's the code, which goes in your /etc/default/grub file:
GRUB_INIT_TUNE="1750 523 1 392 1 523 1 659 1 784 1 1047 1 784 1 415 1 523 1 622 1 831 1 622 1 831 1 1046 1 1244 1 1661 1 1244 1 466 1 587 1 698 1 932 1 1195 1 1397 1 1865 1 1397 1"
| #!/bin/bash | |
| # extract all postgres databases from a sql file created by pg_dumpall | |
| # this script outputs one .sql file for each database in the original .sql file | |
| # unless you pass the name of a database in the dump | |
| if [ $# -lt 1 ] | |
| then | |
| echo "Usage: $0 <postgresql sql dump> [dbname]" >&2 | |
| exit 1 | |
| fi |