**Benchmark baseline /config.txt**
Code: Select all

```
dtparam=sd_overclock=100
arm_freq=1270
core_freq=500
over_voltage=4
sdram_freq=575
sdram_schmoo=0x02000020
over_voltage_sdram_p=6
over_voltage_sdram_i=4
over_voltage_sdram_c=4
v3d_freq=500
h264_freq=333
gpu_mem=192
```

Sysbench 113.4291s

Code: Select all

```
pi@raspberrypi:~ $ sysbench --num-threads=4 --test=cpu --cpu-max-prime=20000 --validate run
sysbench 0.4.12: multi-threaded system evaluation benchmark
Running the test with following options:
Number of threads: 4
Additional request validation enabled.
Doing CPU performance benchmark
Threads started!
Done.
Maximum prime number checked in CPU test: 20000
Test execution summary:
total time: 113.4291s
total number of events: 10000
total time taken by event execution: 453.5869
per-request statistics:
min: 45.06ms
avg: 45.36ms
max: 125.23ms
approx. 95 percentile: 45.65ms
Threads fairness:
events (avg/stddev): 2500.0000/12.47
execution time (avg/stddev): 113.3967/0.02
```

Linpack bench 6.72 Gflops

Code: Select all

```
pi@raspberrypi:~ $ ./xhpl
================================================================================
HPLinpack 2.1 -- High-Performance Linpack benchmark -- October 26, 2012
Written by A. Petitet and R. Clint Whaley, Innovative Computing Laboratory, UTK
Modified by Piotr Luszczek, Innovative Computing Laboratory, UTK
Modified by Julien Langou, University of Colorado Denver
================================================================================
An explanation of the input/output parameters follows:
T/V : Wall time / encoded variant.
N : The order of the coefficient matrix A.
NB : The partitioning blocking factor.
P : The number of process rows.
Q : The number of process columns.
Time : Time in seconds to solve the linear system.
Gflops : Rate of execution for solving the linear system.
The following parameter values will be used:
N : 8000
NB : 256
PMAP : Row-major process mapping
P : 1
Q : 1
PFACT : Left
NBMIN : 2
NDIV : 2
RFACT : Right
BCAST : 2ring
DEPTH : 0
SWAP : Mix (threshold = 64)
L1 : transposed form
U : transposed form
EQUIL : yes
ALIGN : 8 double precision words
--------------------------------------------------------------------------------
- The matrix A is randomly generated for each test.
- The following scaled residual check will be computed:
||Ax-b||_oo / ( eps * ( || x ||_oo * || A ||_oo + || b ||_oo ) * N )
- The relative machine precision (eps) is taken to be 1.110223e-16
- Computational tests pass if scaled residuals are less than 16.0
================================================================================
T/V N NB P Q Time Gflops
--------------------------------------------------------------------------------
WR02R2L2 8000 256 1 1 50.80 6.721e+00
HPL_pdgesv() start time Thu May 12 17:51:44 2016
HPL_pdgesv() end time Thu May 12 17:52:35 2016
--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)= 0.0025941 ...... PASSED
================================================================================
Finished 1 tests with the following results:
1 tests completed and passed residual checks,
0 tests completed and failed residual checks,
0 tests skipped because of illegal input values.
--------------------------------------------------------------------------------
End of Tests.
=======================================================
```

=========================

Sdbench

Turbo=0

100.000 MHz 18.68 MB/s 36.22 MB/s 35.22 MB/s

Code: Select all

```
pi@raspberrypi:~ $ sudo ./sdbench.sh
[3;J
CONFIG:
CLOCK : 100.000 MHz
CORE : 500 MHz, turbo=0
DATA : 512 MB, /root/test.dat
HDPARM:
======
Timing O_DIRECT disk reads: 106 MB in 3.01 seconds = 35.24 MB/sec
Timing O_DIRECT disk reads: 106 MB in 3.01 seconds = 35.21 MB/sec
Timing O_DIRECT disk reads: 106 MB in 3.01 seconds = 35.25 MB/sec
WRITE:
=====
536870912 bytes (537 MB) copied, 30.4102 s, 17.7 MB/s
536870912 bytes (537 MB) copied, 26.367 s, 20.4 MB/s
536870912 bytes (537 MB) copied, 25.8667 s, 20.8 MB/s
READ:
====
536870912 bytes (537 MB) copied, 14.2134 s, 37.8 MB/s
536870912 bytes (537 MB) copied, 14.095 s, 38.1 MB/s
536870912 bytes (537 MB) copied, 14.0941 s, 38.1 MB/s
RESULT (AVG):
============
Overlay config core_freq turbo overclock_50 WRITE READ HDPARM
500 0 100.000 MHz 18.68 MB/s 36.22 MB/s 35.22 MB/s
```

Sdbench

Turbo=0

core_freq_min=200
100.000 MHz 16.75 MB/s 38.96 MB/s 41.00 MB/s

./sdbench.sh: line 86: printf: 500

200: invalid number
Code: Select all

```
pi@raspberrypi:~ $ sudo ./sdbench.sh
#[3;J
CONFIG:
CLOCK : 100.000 MHz
CORE : 500
200 MHz, turbo=0
DATA : 512 MB, /root/test.dat
HDPARM:
======
Timing O_DIRECT disk reads: 130 MB in 3.04 seconds = 42.73 MB/sec
Timing O_DIRECT disk reads: 114 MB in 3.01 seconds = 37.83 MB/sec
Timing O_DIRECT disk reads: 128 MB in 3.02 seconds = 42.37 MB/sec
WRITE:
=====
536870912 bytes (537 MB) copied, 45.7231 s, 11.7 MB/s
536870912 bytes (537 MB) copied, 25.6236 s, 21.0 MB/s
536870912 bytes (537 MB) copied, 26.854 s, 20.0 MB/s
READ:
====
536870912 bytes (537 MB) copied, 13.0739 s, 41.1 MB/s
536870912 bytes (537 MB) copied, 13.2472 s, 40.5 MB/s
536870912 bytes (537 MB) copied, 13.1077 s, 41.0 MB/s
RESULT (AVG):
============
Overlay config core_freq turbo overclock_50 WRITE READ HDPARM
./sdbench.sh: line 86: printf: 500
200: invalid number
500 0 100.000 MHz 16.75 MB/s 38.96 MB/s 41.00 MB/s
```

Sdbench

force_turbo=1
100.000 MHz 16.19 MB/s 41.61 MB/s 43.31 MB/s

Code: Select all

```
pi@raspberrypi:~ $ sudo ./sdbench.sh
#[3;J
CONFIG:
CLOCK : 100.000 MHz
CORE : 500 MHz, turbo=1
DATA : 512 MB, /root/test.dat
HDPARM:
======
Timing O_DIRECT disk reads: 132 MB in 3.04 seconds = 43.38 MB/sec
Timing O_DIRECT disk reads: 130 MB in 3.00 seconds = 43.31 MB/sec
Timing O_DIRECT disk reads: 130 MB in 3.01 seconds = 43.14 MB/sec
WRITE:
=====
536870912 bytes (537 MB) copied, 47.0406 s, 11.4 MB/s
536870912 bytes (537 MB) copied, 25.127 s, 21.4 MB/s
536870912 bytes (537 MB) copied, 29.6009 s, 18.1 MB/s
READ:
====
536870912 bytes (537 MB) copied, 12.3044 s, 43.6 MB/s
536870912 bytes (537 MB) copied, 12.2942 s, 43.7 MB/s
536870912 bytes (537 MB) copied, 12.3208 s, 43.6 MB/s
RESULT (AVG):
============
Overlay config core_freq turbo overclock_50 WRITE READ HDPARM
500 1 100.000 MHz 16.19 MB/s 41.61 MB/s 43.31 MB/s
```