this message is a re-post of the FreeBSD forum. Moderator cpm suggested to ask
for help in this mailing-list:
In May I started with 10.0-Release on an ASrock E3C224D4I-14S.
The system had low power consumption and powerd(8) did a good job lowering the
CPU frequency.
However starting from 10.1 (and now 10.2-release) I keep getting high CPU
consumption due to a process called {acpi task}.
BIOS upgrades or changes didn't help. Disabling ACPI results in system halt at
startup.
Does anybody have an idea to solve this? It seems that the ACPI process in
FreeBSD is changed, which my motherboard cannot handle.
top -SH output:
----
last pid: 41184; load averages: 1.71, 1.75, 1.64
up 8+14:05:40 10:00:16
691 processes: 7 running, 663 sleeping, 21 waiting
CPU: 0.8% user, 0.0% nice, 62.7% system, 0.0% interrupt, 36.5% idle
Mem: 90M Active, 4310M Inact, 11G Wired, 18M Cache, 144K Buf, 497M Free
ARC: 9991M Total, 1364M MFU, 7997M MRU, 4841K Anon, 36M Header, 588M Other
Swap: 2048M Total, 2048M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
11 root 155 ki31 0K 32K RUN 1 122.7H 62.99% idle{idle:
cpu1}
0 root 8 0 0K 7088K RUN 1 73.2H 36.87%
kernel{acpi_task_1}
0 root 8 0 0K 7088K RUN 0 73.3H 36.18%
kernel{acpi_task_0}
0 root 8 0 0K 7088K RUN 0 73.2H 35.60%
kernel{acpi_task_2}
11 root 155 ki31 0K 32K RUN 0 67.6H 34.08% idle{idle:
cpu0}
1024 mysql 20 0 266M 69624K RUN 1 0:37 0.10% mysqld{mysqld}
12 root -60 - 0K 336K WAIT 0 11:18 0.00% intr{swi4:
clock}
1149 root 20 0 500M 90016K sbwait 0 6:15 0.00% mongod{mongod}
1149 root 20 0 500M 90016K sbwait 1 6:13 0.00% mongod{mongod}
1149 root 20 0 500M 90016K sbwait 0 6:12 0.00% mongod{mongod}
687 root 20 0 4560M 363M uwait 1 5:31 0.00% java{java}
----
Regards,
Arthur
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