Wed Apr 13, 2016 7:05 pm

Raspberry Pi 3 Thermal Photography

The BCM2837 system-on-chip (SoC) in the Raspberry Pi 3 gets far, far hotter than its predecessors. If you're planning to put the Pi 3 in a case, you're going to need to invest in a heatsink and make sure there's at least some ventilation

Screen Blanking and Lock Screen

If you want to customize and modify/change your look, or theme, see:

Overclocked "Hot Rod Pi3 Extreme"



Stable Overclock (utilizing the below tests):

If you want to test your pi3

Why should you care if your overclock is stable, or not?

If your Pi3 should freeze up, or otherwise become unresponsive during tests, DO NOT remove power, instead reboot with 'alt'+"sysrq"+"b" ('sysrq' is also known as 'prtscr' key). Hard reboots (where you unplug power, then plug it back in again) can result in data corruption!

Power supply for Pi3 (power draw when idle):

TOP

Code: Select all top

SDBENCH

(test the hdpharm and read/write performance of your hc-1/uhs-1 micro sdcard). Average is 50 MHz 20 MB/s Read; 12 MB/s Write, or with sd_overclock 100 MHz 40 MB/s Read; 20 MB/s Write.



http://www.nmacleod.com/public/sdbench.sh



then: Code: Select all sudo nano sdbench.sh



Make it executable with... Code: Select all sudo chmod +x sdbench.sh Code: Select all sudo ./sdbench.sh open, and 'select all':then:...and paste the text in, then save with Ctrl-X, Y, Enter.Make it executable with...Then run:

MEMTESTER

(test your sdram, battery of tests will indicate pass/fail results. you want 'pass' across the board for 5 sequential loops. set 'gpu_mem' to 48 prior to test for optimal results)

Code: Select all sudo apt-get memtester

Code: Select all memtester 700m 5

SYSBENCH



average stock Pi3 benchmark (basic cpu performance benchmark. prime number cruncher (up to 20000) with validation)average stock Pi3 benchmark total time is 119.4716 seconds (faster is better).

Code: Select all sudo apt-get install sysbench

Code: Select all sysbench --num-threads=4 --test=cpu --cpu-max-prime=20000 --validate run

STRESS

(puts a near "real world" full CPU load on pi. If you throttle on this, do not attempt cpuburn-a53 as you are inadequately cooled

Code: Select all sudo apt-get install stress

Code: Select all while true; do vcgencmd measure_clock arm; vcgencmd measure_temp; sleep 10; done& stress -c 4 -t 900s

CPUBURN-A53

!!Run cpuburn-a53 with caution if your pi3 insufficiently cooled!!

(Test is "PASSED" if you do not throttle back, or exceed 79C within a 15min span. Exceeding 79C, and overheating/throttling, OR Pi3 crash indicates a "FAIL". Will also verify whether your power supply is adequate or not). A properly cooled pi3 can run this between 50C-79C

Code: Select all wget https://raw.githubusercontent.com/ssvb/cpuburn-arm/master/cpuburn-a53.S gcc -o cpuburn-a53 cpuburn-a53.S

Code: Select all while true; do vcgencmd measure_clock arm; vcgencmd measure_temp; sleep 10; done& ./cpuburn-a53

LINPACK Bench

(tests stability, performs computations, if you overclock, and it is flawed, test will fail or crash. set 'gpu_mem" to 48 prior to test for optimal results). Stock Pi3 at 1.2 GHz passes this at 6 Gflops (may require a small voltage boost in /config.txt "over_voltage=1"), a stable overclocked Pi3 at 1.26 GHz passes at around 6.6 Gflops (multiple back to back tests with same Gflop result to determine stability).

Code: Select all sudo apt-get install libmpich-dev wget http://web.eece.maine.edu/~vweaver/junk/pi3_hpl.tar.gz tar -xvzf pi3_hpl.tar.gz chmod +x xhpl

BENCH AND TEST RESULTS:

Ambient 20C:

37C 114.4567s

Code: Select all pi@raspberrypi:~ $ while true; do vcgencmd measure_clock arm; vcgencmd measure_temp; sleep 10; done& sysbench --num-threads=4 --test=cpu --cpu-max-prime=20000 --validate run [1] 1239 frequency(45)=1260002000 temp=30.0'C 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! frequency(45)=1260000000 temp=35.4'C frequency(45)=1260000000 temp=35.4'C frequency(45)=1260002000 temp=36.5'C frequency(45)=1260000000 temp=36.5'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C Done. Maximum prime number checked in CPU test: 20000 Test execution summary: total time: 114.4567s total number of events: 10000 total time taken by event execution: 457.7026 per-request statistics: min: 45.42ms avg: 45.77ms max: 90.88ms approx. 95 percentile: 46.32ms Threads fairness: events (avg/stddev): 2500.0000/12.25 execution time (avg/stddev): 114.4256/0.02

Gflops 6.6

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 51.27 6.660e+00 HPL_pdgesv() start time Sun Apr 24 09:13:21 2016 HPL_pdgesv() end time Sun Apr 24 09:14:12 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. ================================================================================ 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 51.47 6.634e+00 HPL_pdgesv() start time Sun Apr 24 09:14:53 2016 HPL_pdgesv() end time Sun Apr 24 09:15:44 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. ================================================================================ 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 51.69 6.605e+00 HPL_pdgesv() start time Sun Apr 24 09:16:14 2016 HPL_pdgesv() end time Sun Apr 24 09:17:06 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.

38C

Code: Select all pi@raspberrypi:~ $ while true; do vcgencmd measure_clock arm; vcgencmd measure_temp; sleep 10; done& stress --cpu 4 [1] 2333 stress: info: [2334] dispatching hogs: 4 cpu, 0 io, 0 vm, 0 hdd frequency(45)=1260132000 temp=30.0'C frequency(45)=1260000000 temp=34.9'C frequency(45)=1260002000 temp=35.4'C frequency(45)=1260000000 temp=36.5'C frequency(45)=1260000000 temp=36.5'C frequency(45)=1260000000 temp=37.0'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=38.1'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=38.1'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260002000 temp=38.6'C frequency(45)=1260000000 temp=38.1'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.0'C frequency(45)=1260002000 temp=38.1'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=38.1'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260002000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260002000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.0'C frequency(45)=1260000000 temp=37.0'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=38.1'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260002000 temp=38.1'C frequency(45)=1260000000 temp=38.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=37.6'C frequency(45)=1259998000 temp=37.6'C frequency(45)=1260000000 temp=38.1'C

50C

Code: Select all pi@raspberrypi:~ $ while true; do vcgencmd measure_clock arm; vcgencmd measure_temp; sleep 10; done& ./cpuburn-a53 [1] 1244 frequency(45)=1260132000 temp=27.9'C frequency(45)=1260002000 temp=41.9'C frequency(45)=1260000000 temp=42.9'C frequency(45)=1260002000 temp=45.1'C frequency(45)=1260000000 temp=46.2'C frequency(45)=1260000000 temp=46.2'C frequency(45)=1260000000 temp=46.2'C frequency(45)=1260000000 temp=46.7'C frequency(45)=1260000000 temp=46.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260002000 temp=47.8'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1259998000 temp=47.2'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260002000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1259998000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260002000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1259998000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1259998000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260002000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260002000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1259998000 temp=48.9'C frequency(45)=1260002000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1259998000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1259998000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260002000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260002000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260002000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260002000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260002000 temp=49.9'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260002000 temp=50.5'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1259998000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1259998000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.2'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260002000 temp=47.2'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=47.8'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260002000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260002000 temp=49.4'C frequency(45)=1260002000 temp=49.4'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1259998000 temp=49.4'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=48.3'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260002000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260002000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1259998000 temp=49.9'C frequency(45)=1259998000 temp=49.9'C frequency(45)=1260002000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260002000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=50.5'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=48.9'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.4'C frequency(45)=1260000000 temp=49.9'C frequency(45)=1260000000 temp=49.9'C

Code: Select all top - 16:23:07 up 34 min, 1 user, load average: 5.05, 5.61, 5.16 Tasks: 144 total, 5 running, 139 sleeping, 0 stopped, 0 zombie %Cpu0 : 99.0 us, 1.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu1 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu2 : 98.7 us, 1.0 sy, 0.3 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu3 : 99.3 us, 0.7 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 948012 total, 834380 used, 113632 free, 36644 buffers KiB Swap: 102396 total, 0 used, 102396 free. 533068 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1112 pi 20 0 1680 340 284 R 99.0 0.0 25:26.65 cpuburn-a53 1116 pi 20 0 1680 88 16 R 98.3 0.0 25:25.70 cpuburn-a53 1114 pi 20 0 1680 84 16 R 97.0 0.0 25:27.84 cpuburn-a53 1115 pi 20 0 1680 84 16 R 94.0 0.0 25:22.16 cpuburn-a53 2026 pi 20 0 628616 144016 102956 S 3.6 15.2 2:01.88 chromium-b+ 656 root 20 0 120868 45204 19560 S 2.6 4.8 0:58.07 Xorg 2251 pi 20 0 376288 113548 78804 S 2.0 12.0 0:24.44 chromium-b+ 882 pi 20 0 90292 23252 19640 S 1.3 2.5 0:18.04 lxpanel 1019 pi 20 0 47152 19028 16080 S 1.0 2.0 0:05.88 lxterminal 877 pi 20 0 21012 12028 9416 S 0.3 1.3 0:03.06 openbox 1110 pi 20 0 5112 2524 2148 R 0.3 0.3 0:07.52 top 2506 root 20 0 0 0 0 S 0.3 0.0 0:00.01 kworker/2:2 1 root 20 0 22884 4028 2788 S 0.0 0.4 0:06.79 systemd 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd

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: 126 MB in 3.01 seconds = 41.86 MB/sec Timing O_DIRECT disk reads: 124 MB in 3.03 seconds = 40.89 MB/sec Timing O_DIRECT disk reads: 122 MB in 3.02 seconds = 40.40 MB/sec WRITE: ===== 536870912 bytes (537 MB) copied, 25.5738 s, 21.0 MB/s 536870912 bytes (537 MB) copied, 22.3328 s, 24.0 MB/s 536870912 bytes (537 MB) copied, 23.7269 s, 22.6 MB/s READ: ==== 536870912 bytes (537 MB) copied, 12.8048 s, 41.9 MB/s 536870912 bytes (537 MB) copied, 12.3227 s, 43.6 MB/s 536870912 bytes (537 MB) copied, 12.3561 s, 43.4 MB/s RESULT (AVG): ============ Overlay config core_freq turbo overclock_50 WRITE READ HDPARM 500 1 100.000 MHz 21.51 MB/s 40.99 MB/s 41.06 MB/s

Code: Select all pi@raspberrypi:~ $ memtester 700m 1 memtester version 4.3.0 (32-bit) Copyright (C) 2001-2012 Charles Cazabon. Licensed under the GNU General Public License version 2 (only). pagesize is 4096 pagesizemask is 0xfffff000 want 700MB (734003200 bytes) got 700MB (734003200 bytes), trying mlock ...locked. Loop 1/1: Stuck Address : ok Random Value : ok Compare XOR : ok Compare SUB : ok Compare MUL : ok Compare DIV : ok Compare OR : ok Compare AND : ok Sequential Increment: ok Solid Bits : ok Block Sequential : ok Checkerboard : ok Bit Spread : ok Bit Flip : ok Walking Ones : ok Walking Zeroes : ok 8-bit Writes : ok 16-bit Writes : ok Done.

SoC hot!!!Using my Pi3 as a test subject, for determining optimal cooling capabilities, optimization via overclocking, and running bench tests on that optimized Pi, I figured I would show it off firstly....First thing i did though, was disable that annoying screen blanking. I set the Monitor to turn off, and go into power save mode when I wanted it to, and to use a keyboard shortcut to ScreenLock via. For more info, and Instructions on how to disable screen blanking, and enable screen locking (xscreensaver sucks), see: viewtopic.php?p=961360#p961360 My Pi3 desktop (I am partial to the Windows layout and "Start" buttons, and i like to switch between visual themes...I have three themes, Raspbian, Kali, and Veil) If you are gonna turn the Pi3 into an overclocked Desktop PC, make it look awesome! Right?The easiest way I have found is get an oversized heatsink, and fan.... Cpuburn-a53 is designed to heat up the pi3, and I can run it with ease overclocked @ 1.3 Ghz, and thermals never exceed 50C. I can run Stress at 38C, Sysbench at 37C, and Idle at 26C... Whether you are overclocked or not, If you have an overheating issue, this is how to resolve it.The heatsink pictured below is custom machined for me by a friend (I have two of them), and is made of anodized aluminum. The outside dimensions are L.87" x W.96" x H.70", and the centered 'socket' on the bottom is L.66" x W.66" and .010" deep.You may be able to order custom sized Aluminum heatsinks, for example:The cooling fan is 12v 70mm x 70mm x 10mm , and sells pretty much everywhere for around $4 - $7 or so. It runs quietly on the GPIO 5V rail.The case is the "official" pi3 case, which runs $8. (fan itself is removable, and is held in place with Velcro-like fasteners. An 18 pack of Scotch 3M reclosable fasteners runs like $4)see: viewtopic.php?p=963540#p963540 (add to /boot/config.txt above 'gpu_mem=')GPU memory is set to 192 (gpu_mem=192) which seems to provide the best performance if using the pi3 as a desktop with monitor.Unstable overclocks can eventually lead to premature hardware failure, malfunctions, crashes and data loss, as well as sdcard corruption.Two things before you start, make sure you have the proper power supply, and some kind of cooling capability... fan and/or heatsink (preferably both).5.19 V 1.141 W0.22 A 00006 mAhGet yourself the official Pi3 power supply (5.1V 2.5A), or the 5.25V 2.4A power supply //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////(hit '1' to see all cores with loads):: (set "gpu_mem=" to 64 prior to run, and reboot after install)Run:Run:: (15 min test run)Run:Run:: (set "gpu_mem=" to 64 prior to run, and reboot after install)Run:Passed(example of 1 loop)