I have two laptops with Ubuntu 16.04 installed (kernel 4.4), both using metacity and gnome-*.
Laptop A - Lenovo W530
Core™ i7-3630QM 2.4GHz quad-core hyper-threading enabled
Laptop B - CybertronPC
Core™ i7-6700K 4.0GHz quad-core hyper-threading enabled
NVIDIA Quadros M1000M with proprietary driver installed
RAID-0 using 2 SSDs
Yet B is slower than A when running almost anything. In particular I ran a Python program that is CPU-bound (generate a random number 100 million times) and it takes twice as long in B.
I tried htop/top and couldn't pinpoint any single process taking up CPU in B. But B's htop usage bars seem definitely higher. How can I profile this situation and figure out where is the bottleneck? Any help would be much appreciated.
Upon further research I realized that potentially my RAID 0 is not hardware based, since laptops don't usually have it. I assumed that it was hardware based since it appears in BIOS. Any idea how to determine whether RAID 0 is hurting me?