DZone
MAY 30, 2018
In our previous blog, MachineX: Layman's Guide to Association Rule Learning, we discussed what Association rule learning is all about, and as you can already tell, with a large dataset, which almost every market has, finding association rules isn't very easy. For these purposes, we introduced measures of interestingness , which were support, confidence, and lift.
Gtmetrix
JUNE 1, 2018
Learn what each element of a Waterfall Chart means and how it relates to performance.
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The Polyglot Developer
JUNE 1, 2018
In February 2018 the Ionic team announced Capacitor. Capacitor allows you to make your frontend builds run everywhere, for example, iOS, Android, Electron and in the browser as a progressive web application (PWA). Also, Capacitor provides a high-quality API to work with native functions within your apps. For example, you can get access to the camera and it means you still get this access to every platform.
Particular Software
MAY 28, 2018
It's a pretty cool time to be a.NET developer. Don't believe it? Check out this excerpt from a popular children's book 1 : Congratulations! Today is your day. You're off to Great Places! You're off and away! Maybe you like Linux or have a MacBook, Or want to host code without breaking your checkbook. The license for Windows can be a bit pricey. Getting approval for more servers can be a bit dicey.
Brendan Gregg
MAY 31, 2018
While debugging a production issue of kernel-based TCP packet drops, I remembered seeing a new function added in Linux 4.7 by Eric Dumazet (Google) called tcp_drop(), which I can trace using kprobes and bcc/eBPF. This lets me fetch extra context to explain why these drops are happening. Eg: # tcpdrop. TIME PID IP SADDR:SPORT > DADDR:DPORT STATE (FLAGS) 05:46:07 82093 4 10.74.40.245:50010 > 10.74.40.245:58484 ESTABLISHED (ACK) tcp_drop+0x1 tcp_rcv_established+0x1d5 tcp_v4_do_rcv+0x141 tcp_v4_rcv+
O'Reilly Software
JUNE 1, 2018
ccache, the compiler cache, is a fantastic way to speed up build times for C and C++ code that I previously recommended. Recently, I was playing around with trying to get it to speed up my Linux kernel builds, but wasn’t seeing any benefit. Usually when this happens with ccache, there’s something non-deterministic about the builds that prevents cache hits.
The Agile Manager
MAY 31, 2018
Before looking at autonomy at scale, we need a different understanding of what an organization is. This matters because the way we perceive an organization will determine our interpretation of what "good" and "bad" look like. Some years ago, I wrote that management thinking is still dominated by the "Freds" : Frederick the Great, who's Prussian military structure became the model for the modern organization; and Frederick Taylor, a pioneer of scientific management.
Brendan Gregg
MAY 30, 2018
While debugging a production issue of kernel-based TCP packet drops, I remembered seeing a new function added in Linux 4.7 by Eric Dumazet (Google) called tcp_drop(), which I can trace using kprobes and bcc/eBPF. This lets me fetch extra context to explain why these drops are happening. Eg: # tcpdrop. TIME PID IP SADDR:SPORT > DADDR:DPORT STATE (FLAGS) 05:46:07 82093 4 10.74.40.245:50010 > 10.74.40.245:58484 ESTABLISHED (ACK) tcp_drop+0x1 tcp_rcv_established+0x1d5 tcp_v4_do_rcv+0x141 tcp_v4_rcv+
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