mattsta

#!/usr/bin/env bash

## PURPOSE: Fix problems with the currently outdated lambdalabs default image.

# Does:
#  - Installs latest Python 3.10 using pyenv
#  - Installs the current poetry environment (assuming this is running in a poetry project dir)
#  - Installs latest pytorch CUDA 12 nightly into current poetry environment

# Script for "normal-maxing" the default lambdalabs image as of June 2023.

mattsta

#!/usr/bin/env bash

# mac vm_stat output is unreadable by default (it reports values as multiple of 16384 byte pages),
# so convert the results to actual GB used automatically.

# this python one liner is a list comprehension because it has to hack around
# python not allowing single-line for loops directly.

vm_stat | python -c 'import sys; [print(f"{l:<35}{int(sz) * 16384 / 2**30:>15,.2f} GB") for idx, (l, sz) in enumerate(x.strip().strip(".").split(":") for x in sys.stdin) if idx > 0]'

mattsta

/* C implementation of performance sensitive functions. */

#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <assert.h>
#include <stdint.h> /* uint32_t, uint64_t */

#include <stdio.h>

#if __AVX2__

mattsta

#!/usr/bin/env bash

set -e
set -x

sudo apt install libssl-dev libsystemd-dev libpcre2-dev -y

wget http://www.haproxy.org/download/2.3/src/haproxy-2.3.2.tar.gz
tar xfvzp hap*

mattsta

#!/usr/bin/env escript
% Problem statement:
% Write a program that outputs all possibilities to put + or - or nothing between the
% numbers 1, 2, ..., 9 (in this order) such that the result is always 100.
% For example: 1 + 2 + 34 – 5 + 67 – 8 + 9 = 100.

% Generate all combos of digits 1-9 with +, -, or nothing in between.
combos([N])    -> [[N]];
combos([N|Ns]) -> [[N, X] ++ Rest || X <- [plus, minus, empty], Rest <- combos(Ns)].

mattsta

{'ver': {'status': 'UNKNOWN', 'version': ''}}
{'cmds': {'sorted by calls': [{'get': '158,696,585 times'},
                              {'set': '71,614,064 times'},
                              {'ping': '23,045,904 times'},
                              {'exists': '1,425,952 times'},
                              {'info': '1,403,483 times'},
                              {'replconf': '1,370,802 times'},
                              {'mget': '700,439 times'},
                              {'del': '163,092 times'},
                              {'setex': '139 times'},

mattsta

#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <string.h>

static long long ustime(void) {
    struct timeval tv;
    long long ust;

    gettimeofday(&tv, NULL);

mattsta

 * THIS CONVERSATION IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS CONVERSATION, EVEN IF ADVISED OF THE

mattsta

127.0.0.1:6379> script load "return redis.call('georadius', '{global}:z:locations:'..ARGV[1], ARGV[2], ARGV[3], 10, 'km', 'withdistance', 'ascending')"
"1c4c03da2a57cf99d50d57aba9a1d431526b2b9e"

127.0.0.1:6379> script load "return redis.call('get', 'abc')"
"b86fdf4c29439ed5d9a52c206d90e2b2d8cfc42c"

Geo tests (key doesn't exist, so just testing getting an empty reply):
matt@ununoctium:~/repos/redis/src% redis-benchmark -n 10000 georadius {global}:z:locations:u1 51.0500000 3.7166700 10 km withdistance ascending
====== georadius {global}:z:locations:u1 51.0500000 3.7166700 10 km withdistance ascending ======
  10000 requests completed in 0.08 seconds

mattsta

matt@ununoctium:~/repos/redis/src% ./redis-cli -p 6379 debug jemalloc info
___ Begin jemalloc statistics ___
Version: 3.6.0-0-g46c0af68bd248b04df75e4f92d5fb804c3d75340
Assertions disabled
Run-time option settings:
  opt.abort: false
  opt.lg_chunk: 22
  opt.dss: "secondary"
  opt.narenas: 32
  opt.lg_dirty_mult: 3