_wmd

9 ms·

1.
by _wmd 7y ago
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, for example, only record the latency of malloc() whi
2.
by _wmd 7y ago
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 true transparency, and then only for 80% of cases, and
3.
by _wmd 7y ago
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 bus SMP had demonstrated its practicality and quickly becam
4.
by _wmd 7y ago
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 OS
5.
by _wmd 7y ago
The BBC article mentions many died on the stairs to the roof. Sounds like a locked door could have been involved
6.
by _wmd 7y ago
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
7.
by _wmd 7y ago
Python 2.1 or 2.2, sure
8.
The EU Galileo GNSS has been down for 3 days(gsc-europa.eu)
7 points by _wmd 7y ago|0 comments
9.
by _wmd 7y ago
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 constant use of 'I' and 'me' (19 occurr
10.
by _wmd 7y ago
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
11.
by _wmd 7y ago
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
12.
by _wmd 7y ago
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 logic etc. that would need to be updated too. A 64 bit kernel
13.
by _wmd 7y ago
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 around this guy Can the link be changed to the apparent sou
14.
by _wmd 7y ago
DynamoDB's free tier is incredibly generous. Did you exceed it?
15.
by _wmd 7y ago
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 some kind of QA environment fed with sample t
16.
by _wmd 7y ago
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..
17.
by _wmd 7y ago
Centralizing more of the Internet to help people align their excuses is probably the worst reasoning I've ever read
18.
by _wmd 7y ago
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 require a little e
19.
by _wmd 7y ago
Note the GCP equivalent requires some permanently running crapware inside your VM, the OpenSSH hook EC2 are using is much simpler
20.
by _wmd 7y ago
https://www.usenix.org/system/files/conference/fast16/fast16... Basic stats are recorded for the children of each tree node, and this is where the power-of-2 property comes from
21.
by _wmd 7y ago
It's certainly a name you can't forget easily, but there's nothing dumb about it. It's intended to be a highly survivable system, that's where the name came from -- in popular culture cockroaches are supposed to be
22.
by _wmd 7y ago
While I think your conclusion is a little strong, it is fair to say they're trying their hardest to legitimize by becoming entangled into almost every possible piece of infrastructure around. As far as giant databases in the sky are co
23.
by _wmd 7y ago
You almost make it sound like Chrome weren't written in C++, or that the typical Chrome install weren't hosted on a few 10s of millions of lines of C/C++
24.
by _wmd 7y ago
I've been around infosec for 21 years and this is still a 0day. That term has no strong definition, certainly not one that would allow precise interpretation as above, but in this case even a vague sense of what it means covers the sit
25.
by _wmd 7y ago
> He followed our run book and triggered a FINT — which stands for "Fail Internal" — directing traffic from the site directly back to its origin rather than passing through Cloudflare's protective edge. Instantly the site
26.
by _wmd 7y ago
While Freenode may not compete with Facebook, it's still pretty huge :) There are 99 users and 84066 invisible on 32 servers 36 IRC Operators online 16 unknown connection(s) 53438 channels formed I have 5185 clie
27.
by _wmd 7y ago
Paper: https://people.csail.mit.edu/poantsai/papers/2019.zippads.as... Seems this cannot be read without first understanding "object based memory hierarchies", which is new to me. This coauthor's pa
28.
by _wmd 7y ago
Considering this will require basically a total rewrite of the C extension API, without having had a chance to look yet, the idea it could be done in a minor release seems shocking
29.
by _wmd 7y ago
Whoever is downvoting this, please realize this design stinks strongly of something Perl5 had a long time ago, that almost nothing could make use of due to a variety of limitations. The question in my mind is how the Python design addresses
30.
by _wmd 7y ago
This is fairly classic engineer thinking and what I was referring to in my comment below.. you can wrap a GPL library in its own program, put that program on a separate VM on a separate physical host in a separate physical building, talk to

More ›