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sacheendra

764 karma · joined November 4, 2013

s.talluri@vu.nl
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sacheendra··on Why Don't Americans Understand How Poor Their Lives Are?
I wouldn't necessarily say vast number of americans have plenty of experience outside the US.

For example, only 42% have a passport. https://www.forbes.com/sites/niallmccarthy/2018/01/11/the-sh...

sacheendra··on Finland’s Basic Income Experiment Shows Recipients Are Happier and More Secure
Unless local governments have the ability to levy significant taxes, the experiment would be unrealistic. The impact of UBI needs to be studied at the societal level, not just the individual level. Who pays the higher taxes, which jobs would find no takers, where would wages need to increase to compensate, etc.

Most countries which are not the Unites States don't have the power to make large scale systematic changes that this requires. It might not be possible even in the US, what with states shipping homeless people to other states and all.

sacheendra··on Engineer refusing to file/disclose patents
3M, Dow, DuPont, Boeing, IBM, J&J, Lockheed, Monsanto, and lot of others on the list do quite innovative stuff. Its the just that failures get publicized by the news cycle as a waste of money and successes do not.
sacheendra··on Why I turned down my Y Combinator interview
One of the requirement listed to apply via the author's company is native fluency in English. How do they evaluate that? If it's some test, I am not aware of any test which measures this. If it depends on where you are born? Is that kind of stratification legal?
sacheendra··on ACLU reaches settlement with Facebook over discriminatory ads
This case was about targeted ads for housing, credit cards, etc. You can't target people of a gender or color for such things by law.
sacheendra··on Market Concentration Is Threatening the US Economy
Yes?
sacheendra··on Nvidia to Acquire Mellanox for $6.9B
infiniband - The high performance interconnect by Mellanox
sacheendra··on A backyard mechanic who is taking on Tesla
I don't know about other things, but using a lift kit is more dangerous to pedestrians that might be hit. This stems from pedestrians being hit closer to the center of their body as opposed to their legs.
sacheendra··on Trolls Are Real
The parent might be refering to the overfishing that happens in many parts of the world. That leads to destruction of the local ecosystem, and also the future livelihoods of the fishermen themselves.

The US government already does something similar for corn. Farmers are paid to not plant it to control market price.

sacheendra··on Amazon Caught Selling Counterfeits of Publisher’s Computer Books–Again
It is not that easy. They need a reliable system to do that. For what can go wrong, see all the hate Youtube's ContentID gets. But, identifying whole books should be simple enough.
sacheendra··on A Coder Who Became a Crime Boss
Unbreakable encryption

For all practical purposes, it is true.

sacheendra··on The Golden Age of Hollywood Tax Avoidance
It is debatable of course.

But the current consensus is that property is not fundamental to the existence of a human. The term property doesn't appear once on https://en.wikipedia.org/wiki/Universal_Declaration_of_Human....

Following your tomato example, you grew the tomato on some land and the plant absorbed nutrients from the land. Who gave your the right to do that? Do you own the nutrients?

How did humans come to own land? Was everybody born with their piece which they chose to trade? Of course not.

What we call property came about over thousands of years due to complex interactions between people. There is a concept of fairness to getting to keep what you made. But, there is nothing simple or fundamental about it.

sacheendra··on The Golden Age of Hollywood Tax Avoidance
The right to have your legally earned income is one given to you by society. It's not something that arose out of natural order, or given by God if you are a believer.

It is not absurd at all that society thinks you shouldn't have this right if it is at the expense of others. Society can take all the wealth it wants from you if it thinks there is a problem to be solved. Poverty for example.

Taxes are tool at civil society's disposal to tackle problems. Considering them immoral that they should only be used as a last resort is absurd.

It quite funny that we consider property more important than people's lives. In the current political climate, going to warnis easier than rising taxes.

sacheendra··on AresDB: Uber’s GPU-Powered Open-Source, Real-Time Analytics Engine
The cost of GPUs doesn't make sense for the compute they offer.

According the benchmark, the fastest 8 GPU node takes about 0.5 seconds. The cost of that node on AWS is about 24$/hour. The 21 node spark cluster takes 6 seconds. But, it only costs 4$/hour.

An additional benefit with Spark is that it can be used for a lot more variety of operations than a GPU.

This cost disadvantage restricts GPU processing to niche use cases.

sacheendra··on It’s Time to Move on from Two Phase Commit
You just described optimistic concurrency control. That's one way of doing things if your workload is not highly contentious.
sacheendra··on Queueing theory: The science of waiting in line
The book Queuing Theory in Action: http://www.cs.cmu.edu/~harchol/PerformanceModeling/book.html
sacheendra··on New documents link Huawei to suspected front companies in Iran, Syria
Given the ineffectiveness of sanctions, why is doing nothing not an option? Doing something just for the sake of doing it is bad foreign policy and weakens soft power. Even as it benefits people who propose the action so as to appear to be doing something.
sacheendra··on Serverless and startups
I think there is place for all kinds of software and infrastructure, based on your business model and scale.

You can start with serverless, move to normal cloud instances and finally to bare metal or the other way around!

For example, the core value provided by an ERP software is not performance but the business logic. Serverless is a good fit for startups creating such software. If you are running a conference call business or serving tons of video like Netflix, a different architecture better suits your need. Such as having edge servers with every ISP.

sacheendra··on Johnson and Johnson knew for decades that asbestos lurked in its Baby Powder
You can blame ppl for being greedy. The executives for employing ignorant ppl. Lots of blame to go around.
sacheendra··on Available on Google Cloud: Intel Optane DC Persistent Memory
Don't know specifically about HANA. But, any database with high throughput would benefit from high bandwidth PCIe non-volatile storage. Databases with significant random accesses in their workload would see a large improvement in performance due to Optane. Nothing else apart from main memory matches Optane with its insane random access performance.

ERP applications which use HANA typically do have significant random accesses in their workload. It is due to this reason that it was initially marketed as an in-memory database. The random access performance of RAM was necessary for high performance. If HANA was just being used in in-memory mode, the speed increase is probably not that impressive. But, if there is non-volatile storage involved, then yes the speed increase would be impressive.

sacheendra··on LEGO built a life-size, drivable Bugatti from over a million Technic pieces
But with no option to opt-out of ad tracking. :-(
sacheendra··on Companies Shouldn’t Be Accountable Only to Shareholders
I think you are mistaking median for mean. Mean gets pulled up, median doesn't. It's literally what the guy at 50% mark has.
sacheendra··on Probe Memory Packs 138 Terabytes per Square Inch
https://en.m.wikipedia.org/wiki/Bekenstein_bound

It gives the maximum amount of data in space before collapsing into a black hole.

sacheendra··on Apple releases software fix for MacBook Pro slowdown
Another comment today mentioned the low quality of asus laptops. I have never owned one, but buying an apple laptop is supposed to relieve all these doubts about good brands, years and models.
sacheendra··on Microsoft Buying GitHub Would Be Bad
It's naive to think that companies will fear having their code stolen by Microsoft.

Companies, which are Microsoft competitors in other fields, use Microsoft software such as Windows and MS SQL Server to process and store valuable data. There was always a risk of Microsoft backdooring their software to spy on competitors.

That doesn't happen because 1. Microsoft wants to be in business and 2. Private repositories probably come with legal requirements that GitHub/MS don't spy on users for competitive gain.

Finally, while software such as Wine has been written to liberate some application from Microsoft's platform monopoly, there is also a lot more Open Source software written for other purposes. I don't see them investing the effort to move away from GitHub unless Microsoft does something evil.

sacheendra··on Ask HN: What has been your most rewarding job or project and why?
For me, the satisfaction from a project is approximately 50% process, 25% recognition and 25% cool factor.

Cool factor is just working on cutting edge stuff or with some tech I'm super excited about.

Recognition comes from the community your are doing the project for (team, manager, etc.) recognizing its importance. This typically only happens if you pick projects which solve a business need and communicate that. Preferably lead to higher revenue.

Process is the end to end process of systematic identification of the problem via concrete quantitative metrics, formulating a solution using a scientific process, building the system following sound design principles, etc. It's kind of difficult to concretely define. What it is not is putting out fire after fire everyday.

This is the recipe of successful project I enjoy nowadays.

The recipe changes from person to person and time to time. The way to figure out your recipe is to introspect. Cut out the noise of FOMO, hyped tech, etc.

A good article I have read recently about deciding what you want is https://waitbutwhy.com/2018/04/picking-career.html. This will explain how to introspect in great detail.

sacheendra··on Oracle will charge companies for using Java SE 8 starting Feb 2019
Wait, if I understand this correctly, this is only for java 8 right?

Java 9 and 10 will still be free for commercial use until further notice.

sacheendra··on Running Lisp in Production (2015)
The cost is negligible for 1 server.

For 100s to 1000s of servers. The cost starts mattering.

I'm not saying new applications shouldn't be built on lisp. Most applications don't have huge scaling requirements. But, if you expect the application to grow, have a plan in place for migration.

sacheendra··on Running Lisp in Production (2015)
I like lisp as a programming language.

But, this article gives one of the reasons for avoiding its use in a high performance production environment. Provisioning a VM with over 25GB RAM for an application which requires about 4GB of it is a huge waste of resources.

While the common wisdom on HN is that for most applications, developer costs more than physical resources. Physical resources still cost money.

Initially list might be a good option for development velocity. But, over time as the application matures, adding features becomes more complicated and the velocity goes down anyway. Shifting to something which reduces costs by upto 6x might be worth it.

sacheendra··on How GDPR Will Change The Way You Develop
Extreme example: you are standing in the way of my car.
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