-
Notifications
You must be signed in to change notification settings - Fork 47
/
Copy pathuser_stack_and_kernel_stack.txt
43 lines (38 loc) · 1.43 KB
/
user_stack_and_kernel_stack.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
usermode stack and kernelmode stack
--------------------------------------------------------------------
user mode stack
--------------------------------------------------------------------
$ 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) 60532
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) 95
stack size (kbytes, -s) 8192 //8 kbytes, 8mb.
cpu time (seconds, -t) unlimited
max user processes (-u) 60532
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
pi@raspberrypi:~ $
--------------------------------------------------------------------
kernel mode stack
--------------------------------------------------------------------
$ getconf -a | grep PAGE_SIZE
PAGE_SIZE 4096
$ getconf -a | grep PAGESIZE
PAGE_SIZE 4096
or
$ sudo grep -i pagesize /proc/1/smaps //process 1 = systemd(init)
KernelPageSize: 4 kB
MMUPageSize: 4 kB
KernelPageSize: 4 kB
MMUPageSize: 4 kB
KernelPageSize: 4 kB
MMUPageSize: 4 kB
...