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support uti_attr for utility thread offloading

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This commit is contained in:
Tomoki Shirasawa
2017-07-25 13:03:48 +09:00
parent 101cab5b0a
commit effde241b9
5 changed files with 342 additions and 38 deletions
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40
executer/user/mcexec.c
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@ -179,40 +179,6 @@ struct kernel_termios {
cc_t c_cc[NCCS]; /* control characters */
};
#define UTI_FLAG_NUMA_SET (1ULL<<1) /* Indicates NUMA_SET is specified */
#define UTI_FLAG_SAME_NUMA_DOMAIN (1ULL<<2)
#define UTI_FLAG_DIFFERENT_NUMA_DOMAIN (1ULL<<3)
#define UTI_FLAG_SAME_L1 (1ULL<<4)
#define UTI_FLAG_SAME_L2 (1ULL<<5)
#define UTI_FLAG_SAME_L3 (1ULL<<6)
#define UTI_FLAG_DIFFERENT_L1 (1ULL<<7)
#define UTI_FLAG_DIFFERENT_L2 (1ULL<<8)
#define UTI_FLAG_DIFFERENT_L3 (1ULL<<9)
#define UTI_FLAG_EXCLUSIVE_CPU (1ULL<<10)
#define UTI_FLAG_CPU_INTENSIVE (1ULL<<11)
#define UTI_FLAG_HIGH_PRIORITY (1ULL<<12)
#define UTI_FLAG_NON_COOPERATIVE (1ULL<<13)
/* Linux default value is used */
#define UTI_MAX_NUMA_DOMAINS (1024)
typedef struct uti_attr {
/* UTI_CPU_SET environmental variable is used to denote the preferred
location of utility thread */
uint64_t numa_set[(UTI_MAX_NUMA_DOMAINS + sizeof(uint64_t) * 8 - 1) /
(sizeof(uint64_t) * 8)];
uint64_t flags; /* Representing location and behavior hints by bitmap */
} uti_attr_t;
struct kuti_attr {
long parent_cpuid;
struct uti_attr attr;
};
struct thread_data_s;
int main_loop(struct thread_data_s *);
@ -2591,6 +2557,7 @@ util_thread_setaffinity(unsigned long pattr)
{
struct kuti_attr kattr;
unsigned long args[3];
struct uti_attr_desc desc;
args[0] = (unsigned long)&kattr;
args[1] = pattr;
@ -2599,9 +2566,8 @@ util_thread_setaffinity(unsigned long pattr)
return;
}
desc.attr = &kattr;
ioctl(fd, MCEXEC_UP_UTI_ATTR, &desc);
}
static long