I use ChatGPT to ask questions about my code - including rust lifetimes - and usually get pretty good detailed answers. More recently I started using diesel ORM and was pleasantly surprised that the bot can answer questions about diesel usage.
Readit Newsperfopt commented on Common Rust Lifetime Misconceptions (2020) github.com/pretzelhammer/... · Posted by u/nic_wilson
perfopt commented on What has changed in CPU cores in M3 chips? eclecticlight.co/2023/11/... · Posted by u/zdw
>If you already have an Apple silicon Mac and are wondering whether to upgrade to an M3 model
I see comments like this in various reviews. Are there really people out there who would replace a Macbook Pro M1 or M2 with a M3 just to get something a bit faster? What are they doing that is so performance critical?
My last Macbook Pro is a 2014. I still find it usable for development work, and I'm only replacing it because of other hardware failures.
I am still rocking a 2012 MBP. I even have a PPC MacMini but it now runs Linux. I have no idea who is upgrading from a M1/M2 to M3 or why they would
perfopt commented on Apple's use of Swift and SwiftUI in iOS 17 blog.timac.org/2023/1019-... · Posted by u/ingve
I really enjoy working with Swift. (Although I'm old school and enjoyed ObjC just as much.) I wish I had more time to work with. React Native is stealing all the fun!
I learnt Swift several years ago for a App project Haven't really used it since.
My impression is that it is useful only in the Apple ecosystem. It that correct? Is it worth learning for things other than iOS and macOS applications?
perfopt commented on UPI Payments: 10B transactions a month done, next stop 100B bqprime.com/business/upi-... · Posted by u/TriNetra
The major difference between UPI payments and Credit Cards is that there is no 'surcharge'. This is what makes it very viable for small merchants to accept payments of minimal amounts.
This is exactly why banks are unhappy - they have to bear the infra cost. This is also the reason the government is trying to push UPI wallet. I suspect at some future point UPI (non-wallet) transactions will be charged a small fee and wallet transactions will not.
perfopt commented on UPI Payments: 10B transactions a month done, next stop 100B bqprime.com/business/upi-... · Posted by u/TriNetra
I was in India earlier this year, and found there was no way (and I spent hours trying) for a foreigner to get access to the UPI system. This meant:
1) There were some cashless fast food outlets that I couldn't eat at
2) There was no way for me to book an intercity bus ticket
I eventually managed to get a bus ticket by sweet-talking someone in a shop to use their personal UPI account in exchange for cash.
I fear there's going to be more problems like this for travellers as communities go cashless around the world.
I have not seen a single eatery that does not accept cash.
Booking bus tickets - RedBus and other portals accept credit cards. To use cash one must book at the terminal.
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perfopt commented on My Overkill Home Network blog.networkprofile.org/m... · Posted by u/monstermunch
I used to have an overkill home network, complete with self hosting everything and 10G backbone.
These days i'm more pragmatic. I have exactly 2 wired machines, and everything else runs Wifi. The network "rack" is simply a firewall and a 16 port POE switch, everything else network related has been retired to the closet.
My NAS is gone. With electricity frequently going above €1/kWh last winter, it seemed like a bad idea to have a NAS sitting there, consuming ~35 kWh/month. Instead i spent about €20/month on cloud storage, and simply upload everything to the cloud (encrypted with Cryptomator), and i have redundant cloud storage (different provider) included in the cost which is where my backup goes.
All that's left at home is a small ARM based machine that handles making daily backups of my cloud data locally, as well as run a small Plex library on a single USB3 external drive.
Besides saving about half my previous electricity cost (as well as all the hardware cost!), i have gained SO MUCH spare time. My firewall is completely closed (save a wireguard VPN), and i no longer have to maintain anything except the normal patch routines.
Could you share how you set up the cloud backup? Also, what cloud providers you use
perfopt commented on A Single-Cycle 64-Bit RISC-V Register File danielmangum.com/posts/si... · Posted by u/hasheddan
Author here -- thanks for the feedback! This is a quick post that is focused on how to logically think about the circuit, but I agree that all of the attributes you enumerated are valuable information as well. I plan to continue diving deeper in future posts. I am currently posting every Friday as part of my goal of gaining a deep understanding of chip design[0]. Please feel free to continue to provide feedback on future posts as well!
[0]: https://danielmangum.com/posts/a-three-year-bet-on-chip-desi...
Perhaps showing the synthesized gates and how say a structural version of the code will synthesize would explain in more detail
perfopt commented on India’s ban on rice exports raises fear of global food price rises theguardian.com/business/... · Posted by u/vanburen
India had a scorching summer and now heavy rains in many parts of the country. The government is just being prudent and ensuring sufficient local stock.
perfopt commented on Apple Vision Pro: Apple’s first spatial computer apple.com/newsroom/2023/0... · Posted by u/samwillis
I remember hardly any significant negative criticism of the iphone, watch, or airpods.
Someone below brought up "when the iphone first came out it was 2G, was only on AT&T" - well, yeah, and those were very valid initial shortcomings that Apple pretty quickly rectified.
With the Vision Pro, I see very few comments putting down the actual technological achievements here. Comments seem to be pretty universal in thinking this is the best VR device there is. But the valid question is people are still having a difficult time imagining real, extended use cases where it doesn't feel like a novelty.
Personally, I think it's great Apple took a swing at this. I wouldn't be willing to bet one way or the other on its success, I think there are lots of unknowns, but I don't really have anything but high praise for the folks that built this.
The iPhone wowed everyone but its price was heavily criticized. Apple later got into the exclusive AT&T deal which "subsidized" the price. People just ended up paying more over time.