gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mcexec: memory policy control by environmental variable

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

20
kernel/host.c
View File

@@ -542,6 +542,26 @@ static int process_msg_prepare_process(unsigned long rphys)
}
vm->numa_mem_policy = MPOL_BIND;
}
else if (pn->mpol_mode != MPOL_MAX) {
int bit;
vm->numa_mem_policy = pn->mpol_mode;
memset(&vm->numa_mask, 0, sizeof(vm->numa_mask));
for_each_set_bit(bit, pn->mpol_nodemask,
PLD_PROCESS_NUMA_MASK_BITS) {
if (bit >= ihk_mc_get_nr_numa_nodes()) {
kprintf("%s: error: NUMA id %d is larger than mask size!\n",
__func__, bit);
return -EINVAL;
}
set_bit(bit, &vm->numa_mask[0]);
}
dkprintf("%s: numa_mem_policy: %d, numa_mask: %ld\n",
__func__, vm->numa_mem_policy, vm->numa_mask[0]);
}
proc->uti_thread_rank = pn->uti_thread_rank;
proc->uti_use_last_cpu = pn->uti_use_last_cpu;