Compressing Images without compromising: Achieving the best Quality with clever Algorithms
HTTP/2 and the HOL in the Waterfall
This year was HTTP/2’s third birthday. Support of h2 in browsers and Web servers is pretty good. Nowadays, with a TLS certificate at hand using h2 is not much more effort than flipping a switch. All major Web servers like Nginx, Apache httpd or IIS have built-in support. Auxiliary software like HAProxy or Varnish/Hitch do so, too.
That’s great! We get multiplexing, stream priorities, HPACK and all the other h2 awesomeness we see in slide decks – whatever they do…
A tale of a waterfall chart and some insights in how HTTP/2 really works.
Bash execution timeline for Jenkins scripts
Have you ever wondered why your bash script in Jenkins suddenly runs so damn slow? Let’s say you have a job that downloads some source code, compiles it and runs some tests. Someday it takes ages to finish and you don’t know why. Wouldn’t it be lovely to have a timeline of bash commands? Continue reading “Bash execution timeline for Jenkins scripts”