Comments on: Data sorting world record: 1 terabyte, 1 minute

By: Lu

Lu — Thu, 19 Aug 2010 14:59:24 +0000

Não entendi nada, como foi esta operaração 1tb em 60′, como aconteceu?

By: Emile

Emile — Tue, 03 Aug 2010 12:12:10 +0000

good question. 1 Big fat record

By: LVS

LVS — Fri, 30 Jul 2010 06:32:22 +0000

WTF? SI units is not used in CS. But the question remains – did the author mean 1000 GB or 1024 GB?

By: charly

charly — Wed, 28 Jul 2010 19:39:34 +0000

Maybe you should read up on SI prefixes. 1 terabyte is 1000 gigabytes, not 1024.

By: Neil Cooper

Neil Cooper — Wed, 28 Jul 2010 17:07:37 +0000

Any benchmark using real time is meaningless for evaluating the efficiency of any computing algorithm, as the result is also dependent on the performance of the hardware.

Give me big O notation or give me nothing.

By: blh

blh — Wed, 28 Jul 2010 16:10:08 +0000

Yes. It is picky. Saying that 1000 is of essentially the same magnitude as 2^10 is a very common, hand-wavy way to relate the two amounts – in both computer science and industry.

By: Reply to Firescreamer

Reply to Firescreamer — Wed, 28 Jul 2010 13:42:52 +0000

Dear Firescreamer,actually 1TB is 10^12 bytes in SI units. 1TiB (powers of 2) is 2^40 bytes or 1024^4. http://en.wikipedia.org/wiki/TerabyteThe Author is actually correct, it is just you that is wrong…

By: E-Man

E-Man — Wed, 28 Jul 2010 13:41:08 +0000

I’d be interested to know what language was used to write the sort algorithm? Was it something custom or something standard?

By: rgh

rgh — Wed, 28 Jul 2010 12:53:40 +0000

It’s not picky. It shows that the author has a fundamental lack of understanding of the subject matter. The total lack of useful content in this article also show this.

By: slh

slh — Wed, 28 Jul 2010 11:28:33 +0000

How many records were in the 1 TB that was sorted?

By: Amanda

Amanda — Wed, 28 Jul 2010 11:24:25 +0000

Thanks man for this is information.

By: gordiannii

gordiannii — Wed, 28 Jul 2010 10:16:39 +0000

wining about an error 2.3438% amounts to “being picky” the message is clear…1000 or 1024 GB is a lot of data.

By: Firescreamer

Firescreamer — Wed, 28 Jul 2010 09:54:34 +0000

I hate this kind of errors:
“sorted more than one terabyte of data (1,000 gigabytes or 1 million megabytes)”

it should be:
“sorted more than one terabyte of data (1,024 gigabytes or 1 048 576 megabytes)”

It makes difference, it’s error of nearly 48 gigabytes.