ardentperf

 tcping myaksclust-myresourcegroup-c33803-9kibbvlt.hcp.eastus.azmk8s.io 443
seq 0: tcp response from 20.121.80.211 [open]  75.465 ms
seq 1: tcp response from 20.121.80.211 [open]  75.355 ms
seq 2: tcp response from 20.121.80.211 [open]  75.230 ms
seq 3: tcp response from 20.121.80.211 [open]  79.054 ms
seq 4: tcp response from 20.121.80.211 [open]  75.140 ms
^C

 time kubectl get pods
No resources found in default namespace.

ardentperf

#!/bin/bash
# Ubuntu 25.04 Desktop Setup Script
# This script is intended to run on a freshly installed Ubuntu 25.04 server
# It installs the desktop environment and xRDP for remote desktop access
#
# WARNING: This script enables remote desktop access which may have security implications
# Make sure to use strong passwords and consider firewall rules
#
# Example usage:
#   curl -sSL bit.ly/ubuntu2504desktop -O

ardentperf

 cat jtest.go
package main

import (
        "encoding/json"
        "fmt"

        cnpg "github.com/cloudnative-pg/cloudnative-pg/api/v1" // Import the CNPG API types
)

ardentperf

#### tested on r6i.16xlarge with RDS Postgres

pgbench -i -s 10 --foreign-keys
pgbench -N -M prepared -T 360 -P 5 -c 512 -j 8

psql -c "create extension pageinspect"

psql <<EOF

  -- this query will return one row for each SLRU page. 

ardentperf

#!/bin/bash

INIT_TABLE_ROWS=20000000
PGBENCH_TRANSACTIONS_PER_CLIENT=100000
PGBENCH_CLIENTS=10

run_test() {
  echo "$(date +%y%m%d.%H%M) STARTING TEST $1"

  pg_stop

ardentperf

function thread_init()
   h = sysbench.histogram.new(1000, 1, 100)
end

function event()
   h:update(sysbench.rand.default(1, 100))
end

function thread_done()
   h:print()

ardentperf

# https://github.com/brendangregg/FlameGraph
#
# skipping directories "test" and "demos"



~/src/FlameGraph$ for F in $(find . -type f -a \! -path ./test\* -a \! -path ./.git\* -a \! -path ./demos\*); do echo $(egrep "(Free Software.*version|CDDL-|Apache)" $F||echo "UNKNOWN") -- $F -- $(git shortlog -s $F|awk '{$1="";print}') ; done | sort

# as published by the Free Software Foundation; either version 2 -- ./difffolded.pl -- Brendan Gregg
# as published by the Free Software Foundation; either version 2 -- ./stackcollapse-bpftrace.pl -- Jose Fernandez Peter Sanford

ardentperf

-- Jeremy Schneider's psqlrc        http://ardentperf.com
--
-- see also https://www.citusdata.com/blog/2017/07/16/customizing-my-postgres-shell-using-psqlrc/
--
\set QUIET 1

select case when count(*)=0 then 'select ''not-aurora'' as avers'
                            else 'select aurora_version() as avers'
       end as aurora_version_query
from pg_settings where name='rds.extensions' and setting like '%aurora_stat_utils%' \gset