(Also looks like I need to set up a mail server on my web host, I totally wasn’t getting mail notifications from wordpress!)

http://grokbase.com/t/perl/perl5-porters/128rpw08re/perl-114576-check-if-hash-500x-times-slower-than-if-keys-hash#20120826gltvul5jmg7acitqfviyz37ike

if(!!%hash) { … }

if_array_cast => sub { my @a = %$ref; if (@a) { 1 } else { 0 } },
if_each => sub { if (each %$ref) { 1 } else { 0 } },

v5.10.1 on old 486 gives this:

hash size: 0
Rate if_array_cast if_keys if if_values if_scalar if_each if_scalar_values if_scalar_keys
if_array_cast 1724138/s — -28% -49% -53% -58% -62% -63% -67%
if_keys 2392344/s 39% — -29% -35% -41% -47% -48% -55%
if 3378378/s 96% 41% — -9% -17% -25% -27% -36%
if_values 3703704/s 115% 55% 10% — -9% -18% -20% -30%
if_scalar 4065041/s 136% 70% 20% 10% — -10% -12% -23%
if_each 4504505/s 161% 88% 33% 22% 11% — -3% -14%
if_scalar_values 4629630/s 169% 94% 37% 25% 14% 3% — -12%
if_scalar_keys 5263158/s 205% 120% 56% 42% 29% 17% 14% –
hash size: 3
Rate if_array_cast if if_scalar if_each if_scalar_values if_keys if_values if_scalar_keys
if_array_cast 407830/s — -60% -62% -92% -94% -96% -96% -96%
if 1016260/s 149% — -6% -79% -85% -90% -90% -90%
if_scalar 1079914/s 165% 6% — -78% -84% -89% -89% -90%
if_each 4901961/s 1102% 382% 354% — -25% -50% -52% -54%
if_scalar_values 6578947/s 1513% 547% 509% 34% — -33% -36% -38%
if_keys 9803922/s 2304% 865% 808% 100% 49% — -4% -8%
if_values 10204082/s 2402% 904% 845% 108% 55% 4% — -4%
if_scalar_keys 10638298/s 2509% 947% 885% 117% 62% 9% 4% –
hash size: 500
Rate if_array_cast if_scalar if if_each if_values if_scalar_keys if_keys if_scalar_values
if_array_cast 2853/s — -100% -100% -100% -100% -100% -100% -100%
if_scalar 948767/s 33151% — -0% -75% -83% -90% -92% -92%
if 952381/s 33277% 0% — -75% -83% -90% -92% -92%
if_each 3816794/s 133664% 302% 301% — -34% -60% -68% -68%
if_values 5747126/s 201315% 506% 503% 51% — -40% -52% -52%
if_scalar_keys 9615385/s 336883% 913% 910% 152% 67% — -19% -19%
if_keys 11904762/s 417117% 1155% 1150% 212% 107% 24% — 0%
if_scalar_values 11904762/s 417117% 1155% 1150% 212% 107% 24% 0% –

But I also reason that manipulative and deceitful practices are basically weapons, and I reckon that those who come to perceive the world from an open sharing perspective are going to be a naive and vulnerable in the face of deception.

For example . . . in earlier times, all media were understood as self-interested and biased. Broadcast news brought an era of news reporting that sought to be unbiased. Then when Fox News comes along, people find it difficult to perceive that the news is anything either than wholly true or wholly untrue, rather than a biased perspective that needs to be filtered through a bit of skepticism.

I guess what I am trying to say is that if a Borg Cube shows up hovering above the White House lawn, they may not be capable of dealing with our lies.

-danny