finnh

Enabling allocation sampling profiling with a sampling period of 4 MB leads to a maximum time overhead of 25% in our benchmarks, over un-profiled regular execution

25% is not low overhead, but perhaps this example is the worse case and other tunings actually are low overhead. There's no exact definition I don't think, but anything much over 3% starts to feel like a lot of overhead to me.

Reading on:

Our main technical insight is that the check whether an allocation should be sampled can be made free. This is done by folding it into the bump-pointer allocator check that PyPy’s GC uses to find out if it should start a minor collection. In this way the fast path with and without memory sampling are exactly the same.

That is cool, and means you only pay for the samples you produce = something you could leave enabled confidently, with a low-enough sample rate at least.

He went to the Museum of Natural History to study sharks, and he had a model pose across a couple of stools for reference of what someone looks like swimming.

That explains why the swimmer, at least, looks a bit fake.

"trivial ... serious efforts"

which is it? you contradict yourself in a single sentence.

It's also unclear how the first graph, whose y-axis is labelled "req/s", is showing a latency spike. Latency is not visible on that graph, AFAICT, only throughput.

exactly. that one clause casts doubt on all the other reasoning; randomization controls for patient selection bias but not diurnal clinic performance

My family calls that game "pink mink"!

What's funny is that checklists in hospitals have been shown, empirically, to be massive life-saving devices.

cyber perhaps not so much...

s/show/department/

ah, yes, the "memory is no object" way of obtaining a weighted distribution. If you need that sweet sweet O(1) selection time, maybe check out the Alias Method :)

(not a worthy comment, but)

I really like the free lunch / free launch pun here, intentional or not.

"fantasizing about a collab" sounds like the world of sneakers, not software. What does that even mean in the world of software?

That room must have smelled amazing. I want to go hang out there.

Is it common to abbreviate Wittgenstein to "Witt"? Don't recall seeing/hearing that before, but it's been awhile since undergrad.

Do you have any examples of defamation lawsuits? I've sold two companies, and have plenty of rich and upper-level exec friends, and I have never heard of a defamation lawsuit amongst tech execs.

There is definitely a stupid game where people don't tell it like it is, but in my experience it's because people don't want to deal with HR at all, and so don't do or say anything that might bring a tut-tut from HR. Because people in HR are beyond annoying...

And HR fears a wrongful-termination lawsuit, not a defamation lawsuit.

This is all in the US, though. The UK has quite different libel laws and so maybe lawsuits are more common there.

Of course, we already live in this reality - just substitute "Corporation" for "AI".

I'm increasingly convinced this is a generational thing

You are taking about gas cars, though. Nobody, of any generation, has "range anxiety" in a gas car. People might be afraid they will hit empty, or not trust their fuel gauge, but that's not "range anxiety" that's "running out of gas is a PITA". Those things are different, one is a commonplace that has always been true and the other is new and EV-specific for good reason.

An EV is much harder to recover from an empty battery than an ICE car is from an empty tank. There is no red jerry can you can fill that will give an EV the 10-30 miles you get from a gallon of gas, and there is no guarantee that a refueling station is close by and conveniently located. And ofc if your EV is empty, it will take hours to refill. Hence range anxiety.

I have an EV, I love it and have done 7 hour road trips with it no problem, but planning the battery charge level is something you have to think about in a way that is qualitatively different than with gas cars.

Dismissing all LLM assistance because of some purity dance you want to enact is silly

That's not what I was saying. I was expressing surprise at the lack of spell- or grammar-check in a blog post about detecting slop. I think an AI would generate better text than that of the post, and I'm wondering if the errors are purposeful signifiers of "hey this was a human writing. this busted sentence"

To be clear, I fault no one for augmenting their writing with LLMs. I do it. A lot now. It’s a great breaker of writers block. But I really do judge those who copy/paste directly from an LLM into a human-space text arena. Sure, take sentences – even proto-paragraphs – if they AI came up with something great.

I guess the sloppy writing ("I do it. A lot now" and "if they AI came up with") made me stop reading early, but: is this part of some big reveal? Sloppy grammar as a sign of not-AI? But it's still slop.

The energy densities listed are flagged as approximate, so grains of salt etc, but the numbers on the page aren't entirely consistent.

The stated energy density is "> 500 watthours/liter".

But higher on the page we see a relative-energy-density bar graph shows lightcell at 5x the energy density of lithium batteries, and (38/5 =) 7.6x less dense then petrol. This implies an energy density for lightcell of 1250 Wh/liter, as (according to Google) petrol clocks in just under 9500 Wh/liter, and (again according to Google) lithium batteries can reach 300 Wh/liter so let's call it 250 for the math to work out.

I'm curious which number is closer to truth: 500Wh/liter, or 1250? Is 1250 the theoretical max and 500 the current output in a test rig?

Fireproofing isnt mandatory, so people dont do it

100%

and they hate spending even one dollar extra on roofing when they know a taxpayer-backed insurance policy will cover their substandard construction

That just doesn't follow. More likely is that people building the homes (possibly on spec) are motivated by their bottom dollar, so only do what is mandatory (per your first point) or that people who own the homes simply _don't know about these mitigations_.

Blaming all behavior on a last-resort insurance fund misses a lot of steps between, and I don't think tracks to how people actually behave in the real world.

The sample flat program in the post is exactly RPN, no?

Wow - i even saw the words "default browser app" and did not even realize it was a setting choice. That works - thank you!

wrt reason : I think that the webview has cookie isolation from the actual app, so using the webview is a bit more privacy-protective. Google being Google that seems unlikely to be the motivating reason, but who knows what good may lurk in the heart of men...

Doesn't this complaint assume a strict stack-ranking of contributors, where the "top" person has no reason to stay and thus leaves, and then the new top does the same, etc?

Which is not at all how actual humans and relationships work. We each bring different value to the table, along multiple dimensions.

where? i just went through Settings > Apps > Gmail on my iphone and found nothing about this. Likewise the in-app Settings in the GMail app lets you choose which browser is the "default app" but it's already set to Safari (the other options are Chrome, by Google, and ... Google, by Google). But that uses an embedded Safari instance inside gmail, not the phone's Safari app.

And yet Headband really did feel like you were wearing a headband =)

Yeah, and the Chrome store is warning about removing it from the store for some best practice violation (no doubt related to the years-since-last-commit).

It does, however, work great for me so :fingers-crossed: I can avoid re-shaving this yak for another few years.

The recent Shōgun series was surprisingly good, I really enjoyed it.

Clavell famously has no idea how to end a book - they pretty much _all_ have a deus ex machina in the form of a natural disaster - but they are excellent & fun reads of the days & weeks leading up to it.

ayeeya, cow chillo

I'm a long-time fan of the Wasavi extension for Chrome/Firefox/Opera, which looks quite similar in terms of user experience. Wasavi is a purely javascript implementation of the vim editing experience, so I believe ends up with a simpler executable model vs launching nvim locally & then bridging to it.

It doesn't have 100% compatibility with vim - no vimscript, for example - but it covers more than enough of the basic movement commands & mappings to be entirely productive for me. I don't know if I would write actual pages of code in it, but I gratefully use it to write long queries in the browser.

I don't think this was your intent, but the only interpretation here is that you think the rapid creation of racist pictures is cool.

Yes, I've been throttled many times by S3. My largest database is ingesting ~5PB/day and that turns into a lot of files in S3. At one point we changed our S3 key scheme to not have hashes up front, which unlocked some simplicity in control plane operations like deleting old files; we did this on the strength of the announcement from AWS that you no longer needed to get clever with prefixes.

This was incorrect at our scale, and we had to switch back.