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Re: Benchmarking a raspberrypi compared to my own PC

Posted: Wed Apr 11, 2018 4:10 am
by ejolson
I've just included these results for the Raspberry Pi 3B+ running in 32-bit mode to the table. In particular the run times
jahboater wrote:
Mon Mar 26, 2018 7:35 am
pi3+ (Cortex A53 in 32 bit mode, gcc 7.3, 1.4GHz)
Found a total of 664579 primes (64-bit)

real 0m14.691s
user 0m14.680s
sys 0m0.000s

Found a total of 664579 primes (32-bit)

real 0m3.332s
user 0m3.330s
sys 0m0.000s
Indicate that the Pi 3B+ is about 8 percent faster on this benchmark than the Pi 3B using 32-bit integers. Note that the reported timings with 64-bit integers, though significantly slower, seem quite good for having been run in 32-bit mode. This reflects a dramatic improvement in compiler optimization using 64-bit integer NEON instructions since the original tests for the 3B were made. It would be interesting to revisit the 3B results.

Re: Benchmarking a raspberrypi compared to my own PC [obsolete and locked]

Posted: Mon Sep 16, 2019 4:16 pm
by mahjongg
The information in this thread has long been obsolete, even though google can still find it, that doesn't mean its valid info.

Therefore an explicit warning the info is old an obsolete is warranted, and locking the thread is too.

A post that claimed the data was valid because it was "easy to find" was deleted, look at the publication dates people!

several years ago we were using very different hardware AND software.

please don't necro old threads, just because you can..... (and wake up google even more).