Hi!

quoted

I was about to add "facepalm" emoji here, as disabling l2 cache is
major mistake. OTOH if you also see 20 seconds, then either there is
another problem, or you need to enable l2 cache, too (and I don't have
to feel too bad for misconfiguring it).

OK. I checked and duovero runs only at 600MHz. I can only
get down to 19 seconds with omap2plus_defconfig if I disable
CONFIG_CPU_FREQ so the max speed is maintained from bootloader.
Otherwise it runs at most at 1GHz, I think any higher speeds
need smartreflex and voltage scaling working which we don't
have in the mainline kernel. Not sure what happens with higher
speeds with mainline kernel or if they are unsafe in the long
run.

Anyways, care to post your .config somewhere so I can see what
the numbers are for me with it?

I'm attaching config I'm using for v4.18. In current boot, bzip2 takes
16 seconds.

user at devuan:~$ time cat /dev/urandom | head -c 10000000 |  sudo nice
-n -19 bzip2 -9 - | wc -c
10044705
15.68user 0.53system 15.93 (0m15.931s) elapsed 101.82%CPU

I guess I should go back to v4.17 to get 12 seconds..?!

Confused,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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