#20790: luci status : wrong memory readings
-------------------------+---------------------------------------
Reporter: bolvan | Owner:
Type: defect | Status: closed
Priority: low | Milestone: Designated Driver (Trunk)
Component: luci | Version: Trunk
Resolution: worksforme | Keywords:
-------------------------+---------------------------------------
Comment (by bolvan):
OK, lets stop using luci and compile simple program.
Purprose of this program is to reveal the largest possible block size
malloc cat receive from the system.
{{{
#include <stdio.h>
void main(int argc,char **argv)
{
if (argc>1)
{
int size = atoi(argv[1]);
void *p = malloc(size*1024);
free(p);
printf(p ? "malloc ok\n" : "malloc fail\n");
}
}
}}}
Now run "ubus call" and "free"
{{{
k@wifi:~/tmp/testalloc$ sudo ubus call system info
{
"uptime": 78752,
"localtime": 1445705328,
"load": [
16448,
32864,
19200
],
"memory": {
"total": 61890560,
"free": 1507328,
"shared": 724992,
"buffered": 765952
},
"swap": {
"total": 0,
"free": 0
}
}
k@wifi:~/tmp/testalloc$ free
total used free shared buff/cache
available
Mem: 60440 18492 1392 708 40556
31324
Swap: 0 0 0
}}}
And try some test allocs :
{{{
k@wifi:~/tmp/testalloc$ ./ta 31324
malloc ok
k@wifi:~/tmp/testalloc$ ./ta 31800
malloc fail
}}}
This proves that available memory mount is something around 31M.
Now compare to sysinfo results.
Something wrong in the house ?
Looks like ubus call return wrong buffered size.
--
Ticket URL: <https://dev.openwrt.org/ticket/20790#comment:4>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
_______________________________________________
openwrt-tickets mailing list
[email protected]
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-tickets
