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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">I've just run a quick test on a Pi3 and a Pi2 we're using for development testing.<br>
<br>
<br>
(outfile1.ts is a 64MB transport stream (already compressed data))<br>
<br>
Pi 2 (clocked at stock 900Mhz):<br>
<br>
root@raspberrypi:/run/shm# time bzip2 -9 outfile1.ts <br>
<br>
real 0m51.804s<br>
user 0m51.590s<br>
sys 0m0.200s<br>
root@raspberrypi:/run/shm#<br>
root@raspberrypi:/run/shm# time dd if=/dev/urandom of=/dev/null bs=16M count=5<br>
5+0 records in<br>
5+0 records out<br>
83886080 bytes (84 MB) copied, 39.9187 s, 2.1 MB/s<br>
<br>
real 0m39.934s<br>
user 0m0.000s<br>
sys 0m39.890s<br>
root@raspberrypi:/run/shm#<br>
<br>
<br>
<br>
---------------------------------------------<br>
<br>
Pi 3 (clocked at stock 1200Mhz):<br>
<br>
root@raspberrypi:/run/shm# time bzip2 -9 outfile1.ts <br>
<br>
real 0m32.676s<br>
user 0m32.520s<br>
sys 0m0.140s<br>
root@raspberrypi:/run/shm#<br>
root@raspberrypi:/run/shm# time dd if=/dev/urandom of=/dev/null bs=16M count=5<br>
5+0 records in<br>
5+0 records out<br>
83886080 bytes (84 MB) copied, 17.0178 s, 4.9 MB/s<br>
<br>
real 0m17.028s<br>
user 0m0.010s<br>
sys 0m17.010s<br>
root@raspberrypi:/run/shm# <br>
<br>
<br>
So perhaps an increase of 50% is fairly realistic.<br>
<br>
<br>
</div>
<p></p>
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