Dear Piergiorgio,
In message <20200510132611.GA12994@xxxxxxxx> you wrote:
>
> raid6check is CPU bounded, no vector optimization
> and no multithread.
>
> Nevertheless, if you see no CPU load (single core
> load), then something else is not OK, but I've no
> idea what it could be.
>
> Please check if one core is up 100%, if this is
> the case, then there is the limit.
> If not, sorry, I cannot help.
No, there is virtually no CPU load at all:
top - 08:32:36 up 8 days, 16:34, 3 users, load average: 1.00, 1.01, 1.00
Tasks: 243 total, 1 running, 242 sleeping, 0 stopped, 0 zombie
%Cpu0 : 0.0 us, 0.0 sy, 0.0 ni, 98.7 id, 0.0 wa, 1.3 hi, 0.0 si, 0.0 st
%Cpu1 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu2 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu3 : 0.3 us, 1.3 sy, 0.0 ni, 97.7 id, 0.0 wa, 0.3 hi, 0.3 si, 0.0 st
%Cpu4 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu5 : 1.7 us, 3.7 sy, 0.0 ni, 90.4 id, 3.0 wa, 0.7 hi, 0.7 si, 0.0 st
%Cpu6 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu7 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 24034.6 total, 10921.2 free, 1882.4 used, 11230.9 buff/cache
MiB Swap: 7828.5 total, 7828.5 free, 0.0 used. 21757.0 avail Mem
What I find interesting is thet all disks are more or less
constantly at around 400 kB/s (390...400, never more).
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@xxxxxxx
That's their goal, remember, a goal that's really contrary to that of
the programmer or administrator. We just want to get our jobs done.
$Bill just wants to become $$Bill. These aren't even marginallly
congruent.
-- Tom Christiansen in <6jhtqk$qls$1@xxxxxxxxxxxxxxxxxxxxxx>
