I tested throughput again on my old ThinkPad, with linpack, sysbench, gtkperf and HandBrake transcoding, comparing your kernel to stock kernel.
Result: stock kernel has *slightly* better throughput and overall better results in every test, but the difference is extremely small (around 1%) and absolutely negligible.
Linpack: 11,64 GFlops (Rob) -- 11,79 GFlops (stock)
Sysbench: CPU: 25,96 s -- 25,89 s
Mem (read/write): 143,22 s / 139,96 s -- 140,04 s / 139,39 s
Threads: 14,2 s -- 13,7 s
Gtkperf: 103,13 s -- 100,75 s
Handbrake: 1911 s -- 1908 s
Scrolling heavy web pages in Firefox seems to be more fluent, haven't tested responsiveness otherwise.
Good job!