teepark
Re:Go: Sentinel errors and errors.Is() slow your code down by 3000%
on Saturday June 01, 2024 @10:49PM (#40550943)
Yeah, of course if you're just running through an in-memory slice and doing a little arithmetic on each item, sentinel errors and errors.Is might dominate your runtime. But the dominant use-cases (e.g. in the standard library) are syscalls, filesystem interactions, network APIs - you know, stuff that takes real time.
This reminds me of "latency numbers every programmer should know". Work with the standard library and other well-conceived go projects and you gain the intuition that error handling and bit-twiddling arithmetic don't belong together. That's the real story here, and OP's article is way wide of the mark.
Re:Go: Sentinel errors and errors.Is() slow your code down by 3000%
on Saturday June 01, 2024 @01:42PM (#40547661)
Comparing to the speed of a direct boolean check is a great way to sensationalize really small numbers.
Nobody's real-world code is being slowed down by 500% because all real world code is doing much more than just checking errors. All I see from these results is a 15-16ns cost to using errors.Is versus an additional boolean.
Even the examples ("GetValue") hint at an extremely common use case: reads from a data store. A case where single-digit milliseconds is considered "all good performance-wise" for the most common SQL databases, clocking in at 100000x the time scale of errors.Is.
Re:The case against masks at school
on Thursday January 27, 2022 @12:11PM (#30103101)
But while it points out that the evidence for masks being effective is scarce, it does little to identify positive evidence that masks are specifically ineffective. So we just don't know as much as CDC's consistent guidelines seem to suggest, and it makes sense to weigh the risk. That the article neglects to frame it in this light highlights the one-sided nature.
Re:Ask HN: Who is hiring? (March 2021)
on Monday March 01, 2021 @12:50PM (#26305657)
Facta | San Francisco, Salt Lake City | Go, serverless AWS, React, Typescript | https://facta.io | https://jobs.lever.co/facta
Facta is modernizing the CFO stack for mid-market companies, starting with accounting's month-end close. Come help us empower some of the most undervalued employees (accounting, controllers, finops teams) with tools that automate away their tedious manual workflows.
We are looking for product managers, designers, sales, and engineers.
Re:Ask HN: Who is hiring? (February 2021)
on Monday February 01, 2021 @02:34PM (#25992640)
Facta | Engineering, Product, & Design Roles | SF, Utah, Remote | https://facta.io
Fintech | Typescript, React, Go, serverless AWS
Facta is empowering finance and accounting professionals with a suite of modern software tools that work in tandem with general ledger services to speed up monthly close, get their teams out of spreadsheets, and get critical finance data in front of decision makers faster.
See our open roles at https://jobs.lever.co/facta
Re:Motivate yourself in 10 seconds
on Sunday October 30, 2011 @10:42PM (#3176154)
Twisted was right and I was wrong
Re:Electronic Frontier Foundation Uncovers Widespread FBI Intelligence...
on Sunday January 30, 2011 @04:33PM (#2159243)
creepy that it's down now.
cache: http://webcache.googleusercontent.com/search?q=cache:ZDGnKBh...
Re:Heroku clone for Django?
on Thursday August 19, 2010 @03:28PM (#1618304)
http://linux.die.net/man/2/fcntl
actually it could use row-level locking since it uses row-oriented storage and fcntl locks can be applied to a set of bytes within a file. it could also do file-level locking on tempfiles with names derived from the table name and primary key of the row.
anyone with actual knowledge of it care to chime in with what it does do?