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rt: lock all memory by default

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This commit is contained in:
Steffen Vogel 2017-08-14 14:29:23 +02:00
parent 3519c9b2c8
commit a219343fcd
1 changed files with 16 additions and 0 deletions
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16
lib/kernel/rt.c
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@ -22,6 +22,7 @@
#include <sched.h>
#include <unistd.h>
#include <sys/mman.h>
#include "config.h"
#include "utils.h"
@ -52,6 +53,8 @@ int rt_init(int priority, int affinity)
rt_set_affinity(affinity);
else
warn("You might want to use the 'affinity' setting to pin VILLASnode to dedicate CPU cores");
rt_lock_memory();
#else
warn("This platform is not optimized for real-time execution");
#endif
@ -62,6 +65,19 @@ int rt_init(int priority, int affinity)
#ifdef __linux__
int rt_lock_memory()
{
int ret;
#ifdef _POSIX_MEMLOCK
ret = mlockall(MCL_CURRENT | MCL_FUTURE);
if (ret)
error("Failed to lock memory");
#endif
return 0;
}
int rt_set_affinity(int affinity)
{
char isolcpus[255];