我正在尝试使用 raspbian 在 Raspberry Pi 2(+ Cirrus 声卡)上运行吉他和 jack 。 通过 qjackctl 启动 jack 时,出现错误
Cannot lock down 82278944 byte memory area (Cannot allocate memory)
Cannot use real-time scheduling (RR/10)(1: Operation not permitted)
似乎对 /etc/security/limits.conf 的更改不适用,但对 /etc/security/limits.d/audio.conf 则适用。
我尝试设置用户和组的内存锁定大小:
@audio - rtprio 90 # maximum realtime priority
@audio - memlock unlimited # maximum locked-in-memory address space (KB)
@audio - nice -10
pi - rtprio 90
pi - memlock unlimited
pi - nice -10
从 ssh 我得到了满意的结果:
pi@raspberrypi ~ $ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 30
file size (blocks, -f) unlimited
pending signals (-i) 7349
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 90
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 7349
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
但是从桌面终端我通过 vnc 访问我得到
pi@raspberrypi ~ $ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 7349
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 7349
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
同一用户如何拥有不同的设置以及如何在桌面上运行 rt 和内存分配?
最佳答案
关于linux - 如何在Raspbian下设置jackd和guitarix的实时优先级?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30504470/