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.