HNHacker News
TopNewBestAskShowJobs

yskchu

1,272 karma · joined October 18, 2011

submissionscomments
yskchu··on Trading halted as U.S. stocks plummet
> The practice of referring to increases in the price of an instrument as "gains" but any decline as a "correction" is bizarre.

Its not any decline - it needs to be 10% or more:

https://www.investopedia.com/terms/c/correction.asp

yskchu··on Oregon has first confirmed Covid-19 case
There is actually at least three subs on reddit: r/Coronavirus and r/China_Flu initially, but both are kind of out of control with drama

Then the same mods spun off r/covid19, which is heavily moderated to remove all the drama and focus on science only

yskchu··on We use Kubernetes and spot instances to reduce EC2 billing up to 80%
> Docker is pretty much abandoning Swarm though, so wouldn't recommend that at least.

> https://www.bretfisher.com/is-swarm-dead-answered-by-a-docke....

The post you link specifically says swarm is not dead, in like the first sentence of the post: "No. Swarm is not dead."

It also says: "This was written early 2018. See my update to this video including Docker Inc. interview in late 2018, and then at DockerCon 2019 Docker again confirmed new features and commitment to Swarm. Most of their customers prefer it."

yskchu··on China to inject $174B of liquidity on Monday as markets reopen
For reference, the Hong Kong Hang Seng Index, which opened earlier and also where many mainland Chinese companies are listed, was at ~ 29,000 points on 17th Jan, and now it is at ~26000, which is a drop of ~ 10%.

Shanghai Composite, which only opened today, was ~ 3000 points on 17th Jan and now dropped to ~ 2700

So it's mostly aligned in that sense.

The Hang Seng Index is at least not dropping further (slight up as of this morning) so the liquidity news is at least 1 positive factor helping the market.

yskchu··on You Bet [pdf]
This is quite interesting, here's the man himself on Bloomberg talking about this memo few days ago:

https://www.youtube.com/watch?v=b3rXpMYp4rE

yskchu··on The Unstoppable Rise of Sci-Hub (2019)
I couldn't find any reference to it being blocked except in that article.

A test seems to show it's not blocked though:

https://viewdns.info/chinesefirewall/?domain=sci-hub.tw

Closest mention outside of original article is this The Verge article (2018), saying that they blocked China and Iran for a while because of too many requests from users; but this is sci-hub blocking not China banning

https://www.theverge.com/2018/2/8/16985666/alexandra-elbakya...

yskchu··on Analyzing churn rates, free trials, and other metrics
Bloomberg (magazine not terminal) did that for me, annual plan wasn't available during sign up (though there was a cheap 3 month trial); after a few months on the full monthly plan, offered me annual plan at a discount.

I took it.

yskchu··on Intel Has PCIe 4.0 Optane SSDs Ready, but Nothing to Plug Them Into
Intel marketing is confusing; Optane is several things

There's Optane memory, which is the one the link is referring to, it needs Intel CPUs

Then there's Optane SSDs, which works with AMD fine

Source: I'm using them on EPYC servers

Optane memory is not a traditional SSD, it's more of a disk cache, matched to the Intel CPU. While the rest of the Optane family are standard SSDs

yskchu··on Boeing to Suspend 737 Max Production in January
There's no way Boeing will be going "under" just because 1 model of their planes is impacted

737 MAX is impacted but there's still 737 NG which doesn't have these issues

And then there's 747, 767, 777, 787 which are still under production

This is just the commercial plane side of the business, there's the huge defence side as well

Finally, Boeing has been playing this game a long time, very well connected in gov and congress, and its business impact many states and employees. Boeing is basically too big (and too well connected) to fail; even in the worst possible case, they'll probably get a bailout.

yskchu··on We’d have more quantum computers if it weren’t so hard to find the damn cables
https://archive.is/YVWm8
yskchu··on Blending complex systems made my latency 10x higher
I'm not saying it's not relevant - it was actually a good technical read, they went through alot of detail with their troubleshooting.

I'm just saying the title is misleading, and clickbaity.

yskchu··on Blending complex systems made my latency 10x higher
> Kubernetes made my latency 10x higher

The title is a bit misleading, kub didn't cause the 10x latency - also latency was lower after they fixed their issues

TL;DR version - Migrate from EC2 to Kub; due to some default settings in Kiam & AWS Java SDK, latency of application increased, fixed after reconfiguration and kub latency lower than EC2

yskchu··on Backblaze 7.0 – Version History and Beyond
Even before this new 7.0 version, I was able to get ~90Mbit/s, but had to use multiple threads; it was roughly 3Mbit/s per thread; I set it to 30 threads, got ~90Mbit/s total throughput. This was in August; should test it again with this new 7.0 version when I have another big batch of uploads.
yskchu··on Schwab Removes U.S. Stock, ETF and Options Commissions
> Probably a good time to mention this* excellent piece on how they make money.

> In short: it’s interest on cash deposits. Not payment for order flow.

Are you sure Schwab don't sell order flow?

"Order flow revenue was $139 million during 2018, $114 million for 2017, and $103 million in 2016."

https://content.schwab.com/web/retail/public/about-schwab/sc...

The one broker that is clear that that doesn't sell order flow is Interactive Brokers

yskchu··on Google Wing Launching US Drone Deliveries with FedEx, Walgreens
The system is pretty neat - here's a video of it in action in Canberra (Australia) earlier this year:

https://www.youtube.com/watch?v=eKErmCN78S8

yskchu··on Hong Kong Exchanges Bids $39B to Take over London Stock Exchange
Singapore exchange is pretty small, they don't even make the top 10, while Tokyo is top 3 (by company market cap), so makes sense Japan instead of Singapore
yskchu··on iPhone 11 Pro and iPhone 11 Pro Max
The 20 month person was a different guy
yskchu··on Why Japan’s ‘shūkatsu’ job-seeking system is changing
HN community in Japan is quite big, there's also some good meetups e.g. HN Kansai and HN Tokyo
yskchu··on Police arrest student leader over laser pointers in Hong Kong
With the current situation in HK, and his position, there may be valid concern it may not be used legally

It’s not that hard to prove intent if he is really innocent

If he’s really star gazing, why does he need 10 lasers? Show some evidence of your plan (where you are planning to go to star gaze, who you are going with (10 lasers are a bit too many for 1 person’s needs). Have you always been interested in Astronomy? It is rare (not impossible) for someone to suddenly find an interest in star gazing overnight.

Of course, it may be hard for police to actually prosecute him based on just intent - HK laws are still quite good. However, if he's been seen on the protest frontlines, plus ownership of lasers, it might make more of a case.

HK is not a place known for star gazers really - the light pollution is horrendous

yskchu··on Hong Kong’s protesters use AirDrop to spread information to mainland visitors
>The difference is the conviction rate in China is over 10 times higher

Actually, it's not over 10 times higher; I double checked, Japan's is also 99.9% and has been for some time.

From: https://en.wikipedia.org/wiki/Criminal_justice_system_of_Jap...

Statistics from Wikipedia link: http://hakusyo1.moj.go.jp/en/61/image/image/h002003001001h.j...

If you just take guilty/not guilty, the % is actually 99.98% in Japan (e.g. 2011, 77 Not Guilty, 432,050 Guilty)

yskchu··on Hong Kong’s protesters use AirDrop to spread information to mainland visitors
High conviction rate is not something unique to China - Canada and Japan are also at 97% and 99% respectively

https://en.wikipedia.org/wiki/Conviction_rate

yskchu··on “I’m sorry we’ve given the impression that we're dropping support for i386 apps”
It's still supported on 18.04 LTS etc, they just don't want to support it in 20.04 LTS, so this is a preparation move.

https://www.phoronix.com/scan.php?page=news_item&px=Ubuntu-D...

yskchu··on Civic honesty around the globe
The wallet in the experiment is doesn't look like a normal "wallet" at all - it's a business card case. I wonder if the results would be any different if they used a real wallet.

Pics: Fig S1 @ https://science.sciencemag.org/content/sci/suppl/2019/06/19/...

yskchu··on HAProxy 2.0
haproxy has supported SSL since version 1.5, released 2014, so it's been available for some time now
yskchu··on Hundreds of thousands take to Hong Kong streets against controversial bill
It's not a lie, Taiwan was clearly supporting extraditing him in Feb[1], though there seems to be some concern now[2]

[1] http://www.ejinsight.com/20190213-govt-proposes-revising-ext...

"Taiwanese authorities had asked their counterparts in Hong Kong multiple times to extradite Chan for a court trial, but that has not happened due to restrictions from Hong Kong law."

http://focustaiwan.tw/news/asoc/201902130023.aspx

"Tsai Chiu-ming (蔡秋明), head of the Department of International and Cross-Strait Legal Affairs under the Ministry of Justice, said Taiwan welcomes closer cooperation with other jurisdictions to combat cross-border crime, and he is glad to see Hong Kong's planned legislation."

[2] "Taipei will not agree to transfer of Hong Kong murder suspect if Taiwanese citizens risk being sent to mainland China"

https://www.scmp.com/news/hong-kong/politics/article/3009506...

yskchu··on Hundreds of thousands take to Hong Kong streets against controversial bill
This article has a nice infographic: https://multimedia.scmp.com/infographics/news/hong-kong/arti...

Basically Hong Kong right now, has a whole bunch of extradition treaties with 20 countries[1], just not with both China governments, due to the existing law. The bill fixes this.

Also, the 19 year old HK man admitted to the crime [2], however due to the the crime being committed outside HK, he can't be tried for manslaughter in HK; the HK authorities can only charge him with "money laundering" of his girlfriend's money and property (again [2]). He is currently serving the sentence for money laundering, and he's going to be released in October. However if this bill is passed he can be extradited and tried for murder in Taiwan.

[1] With Australia, Britain, Canada, the Czech Republic, France, Finland, Germany, India, Indonesia, Ireland, Malaysia, the Netherlands, New Zealand, the Philippines, Portugal, South Korea, Singapore, South Africa, Sri Lanka and the United States

[2] https://www.scmp.com/news/hong-kong/law-and-crime/article/30...

yskchu··on The realities of 'owning' a Japanese convenience store
> Smart management would close the store during those hours.

It's mentioned in the article actually, in the later section on Mitoshi Matsumoto; he closed early and made more $$$.

yskchu··on Ask HN: Do you keep a personal knowledge repository?
I'm using Selfhosted Atlassian Confluence - they have a $10 starter license which works nicely for this.
yskchu··on Google suspends some business with Huawei
The difference between Huawei's situation and Microsoft's situation is that Microsoft's app store is not compatible with Android or IOS (obviously, different OS)

While if Huawei uses the Android open source base, the only thing they have to do is entice developers to submit another copy of their app to their store, which is a much lower barrier than the one MS faced to develop a whole new ecosystem

yskchu··on Epic Games Is Acquiring Psyonix
> The problem, of course, is that Epic isn't developing original content—they're paying for existing content to be removed from Steam.

It depends on how you're defining "original content". I mean, yes they are paying for games to be Epic exclusive, however Epic released Fortnite, so they do have their own big releases

← PreviousPage 2 of 5Next →