Jenya_
Re:What a gas stove ban means for restaurants
on Friday June 03, 2022 @02:39PM (#31612072)
Natural gas heating is very inefficient (e.g. versus electric kettle). There was recent Technology Connections video about that:
Re:Twitter blocked my account for a tweet I did not make
on Monday May 02, 2022 @04:31PM (#31240512)
I agree, this looks like a quick and dirty attempt to get account blocked.
Re:Twitter blocked my account for a tweet I did not make
on Monday May 02, 2022 @04:18PM (#31240346)
Tweet is addressed to several accounts, one of them is KyivIndependent which reports Ukraine related news. The tweet looks like a death wish from RU supporter.
Re:“Zero fucks given” in other languages
on Wednesday December 22, 2021 @06:30AM (#29647955)
| a parody on "мне по плечу"
As I native, I would assume that "мне по хрену"/"мне похрен" is an euphemism of the more rough variant "мне похуй" (it is up to my dick, same height as my dick).
Re:Why do interviewers ask linked list questions?
on Thursday April 01, 2021 @06:17PM (#26666913)
Lol, so many questions :). I myself only use linked list when I do not know in advance how many items I will get. Otherwise I do allocate an array.
Re:Why do interviewers ask linked list questions?
on Thursday April 01, 2021 @07:23AM (#26659041)
The problem solved by arena allocators here is to avoid many calls to malloc. System allocator is slow, especially in multithreaded environment. Instead of calling malloc 1000 times to allocate 1000 small pieces (like 16 bytes sized each), malloc is called once and then all the small pieces are carved from the big memory block.
The arena allocators are also popular in game development. Memory is allocated from the arena allocator during frame processing (16 ms), and all this allocated memory is deallocated at once at the end of the frame.
Re:Why do interviewers ask linked list questions?
on Thursday April 01, 2021 @07:09AM (#26658916)
Yes, it works fine. I will only add that we do reuse memory. The program deallocates memory managers when they are no longer needed (there could be millions of them at any single time).
Re:Why do interviewers ask linked list questions?
on Wednesday March 31, 2021 @05:26AM (#26645134)
Our arena allocator does not reuse memory for simplicity (it allocates only forward, like a stack). A lot of the libc malloc complexity comes from the need to manage deallocated pieces of memory.
Which means that using array over this arena would waste more memory (due to array resizing) than linked list. When array is resized, the unused memory from the old array will stay unused until the whole arena is deallocated.
Re:Why do interviewers ask linked list questions?
on Tuesday March 30, 2021 @06:58AM (#26633138)
On my work we do use linked lists, they are simple and convenient to collect a few items of data together when the item count is not known in advance. The trick is to allocate linked list structures from the arena allocator (which keeps these structures close in memory). The programs in my work may run for days and may use terabytes of RAM (EDA chip design verification).
I agree that linked lists could be optimized, but usually they are not the worst offender. The biggest gains in performance usually happen when an accidental O(n^2) slowdown is replaced with a correct n*log(n) version.
Re:AMD Reveals the Radeon RX 6000 Series, Coming November 18th
on Friday October 30, 2020 @05:40AM (#24940602)
The 5nm process from TSMC could be less of a success, as say Anandtech editor on Twitter (his A14 review incoming) https://www.reddit.com/r/hardware/comments/jjwtjy/andrei_fan...
Re:27-inch iMac gets a major update
on Tuesday August 04, 2020 @02:34PM (#24053081)
It includes a 5K display which may become useless in five years? (when Apple plans to stop updates for Intel based Macs). It seems that iMacs do not support using them as expernal displays right now. I would prefer 5K monitor to last a bit longer than five years.
Re:Why Apple ditched PowerPC, and what it says about Apple ditching Intel
on Saturday June 20, 2020 @03:09PM (#23586112)
Apple spends a lot of money at TSMC (about 75% of TSMC 7nm production was for Apple chips in 2018, according to a link below). AMD also makes its chips at TSMC and TSMC fab is a limited resource. Instead of paying AMD to make chips at TSMC, Apple can just make them itself.
https://www.eetimes.com/tsmc-to-keep-supplying-chips-to-huaw...
Re:Netflix Makes a Statement in India with “Sacred Games”
on Saturday July 21, 2018 @08:24AM (#17581763)
I watched recently similar documentary on youtube - https://www.youtube.com/watch?v=Gwx9nqknu-c
Re:Show HN: ScreenFocus. Working with multiple monitors made right
on Tuesday April 24, 2018 @05:00PM (#16916529)
there is a spelling error on the site: ...Dim any nuber of screens...
Re:SteamOS, Linux, and Steam Machines
on Wednesday April 04, 2018 @02:41PM (#16757633)
One of the reasons for current Steam refund policy is that Valve lost lawsuit in Australia: https://www.pcgamer.com/valve-loses-australian-legal-battle-...
Re:Cloudflare CEO: Why we’re switching to ARM-based servers
on Thursday March 22, 2018 @07:59AM (#16647808)
Re:The great error: the Bolsheviks were not a party but an apocalyptic...
on Friday December 29, 2017 @12:37PM (#16030619)
I agree, especially Stalin was fighting with Trotsky who promoted ideas of the permanent revolution.
Re:Selling Bitcoins in Canada
on Thursday December 21, 2017 @06:44AM (#15978093)
There is a nice speculative article about Jed McCaleb which may or may not be true, still interesting nonetheless: https://steemit.com/ripple/@olyup/fck-you-money-the-rise-and...
Re:Nike’s Two Hour Marathon Attempt
on Saturday December 16, 2017 @09:51AM (#15939756)
statistics shows there are indeed some runners in this age group which run 10k close to 6 minutes per mile and even faster:
Re:Yahoo Finance has added over 100 cryptocurrency quote pages
on Monday December 11, 2017 @07:11AM (#15896565)
Re:The Environmental Case Against Bitcoin
on Wednesday December 06, 2017 @06:11AM (#15860208)
Yes, it is assumed that mining will continue based just on transaction fees. In fact Bitcoin Core almost reached this goal recently due to their hard limit on block size, the percentage of fees in the total Bitcoin Core block reward reached as high as 40% according to the statistics: https://fork.lol/reward/feepct
Re:When somebody loses weight, where does the fat go?
on Monday November 27, 2017 @01:26PM (#15789728)
Losing eight pounds during 3-4 hours run (marathon event) is not unheard of: http://www.letsrun.com/forum/flat_read.php?thread=3319287
Re:A Lady Logician
on Tuesday October 31, 2017 @08:47AM (#15592780)
"Due to the fact that women could not do experiment work in laboratories she was forced to choose mathematics[1] over physics, a decision that she regretted all of her life."
Re:American Conservative: Don't Whitewash the Hiroshima Bombing
on Monday August 07, 2017 @05:21PM (#14951381)
If you want tough choices, ask Japanese to choose between living as they are now (with atomic bombing in the past) or Japan living as a North Korea (but without atomic bombing).
Re:Algorithm That Makes Preschoolers Obsessed with YouTube
on Wednesday August 02, 2017 @05:39PM (#14914906)
Do you also block Youtube download sites (like keepvid)? Otherwise this may result in her learning (from e.g. advanced friend in school) that she can download a lot of stuff to watch locally during 30 minutes.
Re:Bitcoin Cash Soars to $700, Coinbase Customers Threaten to Sue
on Wednesday August 02, 2017 @10:55AM (#14911023)
The delay in mining was required to trigger drastic difficulty reduction (20%). More details at https://www.reddit.com/r/btc/comments/6r33fz/difficulty_adju...
Re:Show HN: Retail Store that runs on Ethereum
on Friday June 23, 2017 @10:38AM (#14619454)
The first issue is addressed by a reputation system (e.g. like in LocalBitcoins where traders have the history and reputation). For cops to get a good reputation would mean actually selling drugs to a lot of people.
And the second issue: what if cops traced the package to a country where selling these drugs is legal (e.g. generics in India)?
Re:Ask HN: Help Coinbase ate my $5,000.00
on Monday June 19, 2017 @05:26PM (#14590588)
During last month Coinbase added a million users (from seven to eight):
https://www.reddit.com/r/btc/comments/6hzar2/coinbase_hits_8...
Re:CryptoInvesting in the Age of Whales
on Sunday June 18, 2017 @03:11PM (#14582291)
This is why Ethereum founder wants to experiment with proof-of-stake (project Casper), to replace at least partially the proof-of-work:
https://www.ethnews.com/proof-of-stake-vitalik-buterin-share...
Re:Too many people have peed in the pool (2016)
on Sunday June 18, 2017 @09:44AM (#14580594)