Viewing profile — _wmd

The joy with bpftrace (and dtrace before it) for me is this ease with which 'synthetic' profiling events can be constructed from multiple underlying events. This can be used to, fo…

I think the keyword here is transparency -- later designs (even stuff like MPI) explicitly expose the topology of the available hardware. SMP is the closest thing we've ever got to…

Transparently gluing boxes together over a low bandwidth fabric died as an active research area right around the time Plan9 was seeing its first development. By the late 80s shared…

If you can't answer this question for yourself, why do you think you'd be capable of modifying the factory default? Memory management is one of the most complex pieces of a modern …

The BBC article mentions many died on the stairs to the roof. Sounds like a locked door could have been involved

After the smear campaign and mass roasting he received less than 2 months ago, it's not hard to understand why any charitable intentions he had may have completely dried up

Python 2.1 or 2.2, sure

So in response to a catastrophic failure due to testing in prod, they're going to push out a brand new regex engine with an ETA of 2 weeks. Can anyone say testing in prod? The cons…

hey! Do you know if anyone is working on getting bpftrace to use BTF yet? Looks like one of the final chunks landed in Linux 5.2

I'd imagine for a client, most of the value of this bank is access to what I can only imagine to be the most fantastically exotic network it sits at the centre of

There is quite a lot of surface area between a program and the kernel - C library, dynamic linker, system call interface, memory layout, droves of permission and sanity checking lo…

Pretty unfortunate design flaw, and hopefully it can be corrected, but this post is horribly finger-pointy and the tone generally stinks. Would hate to make a mistake while working…

DynamoDB's free tier is incredibly generous. Did you exceed it?

You'd think after leaking private data for literally months less than 3 years ago (and only noticing because Google had to point it out to them) that they'd, y'know, have at least …

You can move 1.6TB between providers in a month for the same price as a single beefy DB server (m4.16xlarge here). That's a whole lot of logical replication..

Centralizing more of the Internet to help people align their excuses is probably the worst reasoning I've ever read

It's in SPF format, but it's also everything. See e.g. https://cloud.google.com/appengine/kb/ Another method is using GeoIP's ASN database, but they also run many ASNs so it would …