Is Mesa 11.2-dev Any Faster For Broadwell HD Graphics 5500?
From the $350 ASUS laptop with Core i3 5010U CPU boasting HD Graphics 5500, I ran some tests on Ubuntu 15.10 x86_64 comparing the stock Mesa 11.0.2 packages against Mesa 11.2-devel from the Padoka PPA yesterday. A Linux 4.4 Git kernel was running on the system.
Long story short, Mesa 11.2-dev was barely any faster than Mesa 11.0 for this Broadwell Core i3 system.
You can find all the raw OpenGL performance data via this OpenBenchmarking.org result file.