pushrax

# frozen_string_literal: true

require 'memory_profiler'

def assert_equal(a, b)
  puts "#{a} != #{b} at #{caller.last}" if a != b
end

def assert(allocated_memsize: nil, allocated_objects: nil)
  report = MemoryProfiler.report { yield }

pushrax

require 'benchmark_driver'
require 'memory_profiler'

def assert_equal(a, b); raise "#{a} != #{b}" if a != b; end

report = MemoryProfiler.report { [:a, :b].include?(:a) }
assert_equal 1, report.total_allocated 

Benchmark.driver do |x|
  x.prelude(<<~RUBY)

pushrax

require 'benchmark_driver'
require 'memory_profiler'

def assert_equal(a, b); raise "#{a} != #{b}" if a != b; end

# Great!
a = 1
report = MemoryProfiler.report { [a, 2].max }
assert_equal 0, report.total_allocated 

pushrax

// gcc -O2 function_call_overhead.c

#include <stdio.h>
#include <inttypes.h>

#define concat_lower_uint32(high, low) (high = (high << 32) | low);

int __attribute__ ((noinline)) foo() {
	return 42;
}

pushrax

void aabbIntersectFast(vec3 P, vec3 R, vec3 invR, vec3 aabb[2], out float tmin, out float tmax)                                                                                                                    
{                                                                               
    vec3 t1 = (aabb[0] - P) * invR;                                             
    vec3 t2 = (aabb[1] - P) * invR;                                             
    vec3 tmins = min(t1, t2);                                                   
    vec3 tmaxs = max(t1, t2);
    tmin = max(max(tmins.x, tmins.y), tmins.z);                                 
    tmax = min(min(tmaxs.x, tmaxs.y), tmaxs.z);                                 
}

pushrax

#!/bin/sh
readelf -x .text $1 | sed '1,2d' | cut -d ' ' -f 4,5,6,7 | sed 's/ //g' | sed 's/\(..\)/\\x\1/g' | tr -d '\n'

pushrax

directories="include src"

revs=$(git rev-list --all | awk '{printf "%s\n%s ", $0, $0}' | sed '1d' | sed '$d')

echo "$revs" \
	| xargs -n2 -L1  bash -c "git --no-pager diff \$1 \$0 --shortstat -- $directories" \
	| awk '{adds+=$4; dels+=$6} END {print adds " insertions"; print dels " deletions"}'

pushrax

Keybase proof

I hereby claim:

• I am pushrax on github.
• I am pushrax (https://keybase.io/pushrax) on keybase.
• I have a public key whose fingerprint is E1F4 5158 16CF 7C2A 189B 816C 33B7 1578 9EE9 E9DC

To claim this, I am signing this object:

pushrax

#!/bin/bash

DATE=`date +%Y-%m-%d.%H%M%S`
echo "Starting MySQL dump for replication $DATE"

mysqldump -u root -p --single-transaction --master-data --databases my_app --verbose | gzip -c > "mysql.master.$DATE.sql.gz"

echo "Dump complete"

pushrax

  replaceCurrentRoute: (params) ->
    params = Batman.extend({}, params)
    # ...

    currentPageParams = @routableParams(params) # loads some more data (controller and action)
    # ...

    path = Shopify.get('dispatcher').pathFromParams(currentPageParams)
    return unless path