XO-1.75 relative performance

Sascha Silbe sascha-ml-reply-to-2011-4 at silbe.org
Wed Nov 2 08:59:51 EDT 2011

Excerpts from C. Scott Ananian's message of 2011-11-02 05:58:42 +0100:

> A pure-CPU benchmark (maybe something in Pippy?) would be a little
> more reliable.

=== Begin facspeed.py ===
#!/usr/bin/env python
import time

def factorial(n):
    result = 1
    while n > 1:
        result *= n
        n -= 1
    return result

n = 100000
start_time = time.time()
time_diff = time.time() - start_time

print '%d! computed in %.3fs' % (n, time_diff)
=== End facspeed.py ===

System		SoC/CPU			OS + arch	time
XO-1.75		Armada 610 @ 0.8GHz	Debian armel	199.108s
XO-1.5		VIA C7-M @ 1GHz		Debian i386	199.285s
OpenRD		88F6281 @ 1.2GHz	Debian armel	181.277s
Desktop PC	Athlon BE-2300 @ 1.9GHz	Debian amd64	 34.180s

I must admit I'm surprised by the result. sup (my MUA of choice) feels
much slower on XO-1.75 than on XO-1.5 - and that's even though dstat
reports higher SD card write throughput (with a different card). Maybe I
should do some side-by-side comparisons.


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