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mcexec: memory policy control by environmental variable

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Refs: #1470
Change-Id: I3d556cae90d31d81572b1c4e5c680e826577d428
This commit is contained in:
Masamichi Takagi
2020-12-15 14:17:32 +09:00
parent ed670c03af
commit 33dd2e60b1
21 changed files with 729 additions and 6 deletions
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16
kernel/include/syscall.h
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@ -183,6 +183,18 @@ typedef unsigned long __cpu_set_unit;
#define MPOL_NO_BSS 0x04
#define MPOL_SHM_PREMAP 0x08
/* should be the same as process.h */
#define PLD_PROCESS_NUMA_MASK_BITS 256
enum {
PLD_MPOL_DEFAULT,
PLD_MPOL_PREFERRED,
PLD_MPOL_BIND,
PLD_MPOL_INTERLEAVE,
PLD_MPOL_LOCAL,
PLD_MPOL_MAX, /* always last member of enum */
};
#define PLD_MAGIC 0xcafecafe44332211UL
struct program_load_desc {
@ -217,6 +229,10 @@ struct program_load_desc {
unsigned long heap_extension;
long stack_premap;
unsigned long mpol_bind_mask;
int mpol_mode;
unsigned long mpol_nodemask[PLD_PROCESS_NUMA_MASK_BITS /
(sizeof(unsigned long) * 8)];
int thp_disable;
int uti_thread_rank; /* N-th clone() spawns a thread on Linux CPU */
int uti_use_last_cpu; /* Work-around not to share CPU with OpenMP thread */