Hi there.
I just ran linpack on my RPI. Not sure though if linpack is giving reliable respectively relevant data:
$this->bbcode_second_pass_code('', '
* RaspberryPi B+
* silghtly overclocked
arm_freq=900
core_freq=480
sdram_freq=560
gpu_freq=250
over_voltage=2
avoid_pwm_pll=1
force_turbo=1
gpu_mem_512=16
* performance governor
* headless operation
* Cases: 100Hz and 300Hz
* Linux 3.16.3-1-ARCH #1 PREEMPT Mon Sep 22 03:53:26 MDT 2014 armv6l GNU/Linux
* Linpack Benchmark
#########################################################
Reps Time(s) DGEFA DGESL OVERHEAD KFLOPS
----------------------------------------------------
32 0.87 88.22% 3.04% 8.74% 55375.088
64 1.74 88.23% 3.03% 8.74% 55357.371
128 3.48 88.24% 3.03% 8.73% 55354.948
256 6.96 88.23% 3.04% 8.73% 55353.222
512 13.92 88.24% 3.04% 8.73% 55354.586
#########################################################
Reps Time(s) DGEFA DGESL OVERHEAD KFLOPS
----------------------------------------------------
32 0.82 87.76% 3.07% 9.17% 58690.948
64 1.65 87.83% 3.08% 9.09% 58629.795
128 3.30 87.88% 3.11% 9.01% 58581.281
256 6.60 87.85% 3.11% 9.04% 58594.520
512 13.19 87.88% 3.10% 9.02% 58588.818
######################################################### 6%+
')
Please let me know if there are better benchmarks to compare the different scenarios.
Cheers