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MM: deferred zero cleaning on Linux CPUs

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Change-Id: Icdb8ac807688533be7a95b7101edfd904250cd02
This commit is contained in:
Balazs Gerofi
2020-09-06 11:47:56 +09:00
committed by Masamichi Takagi
parent e7b8aeb4f7
commit 41f5c0bdde
7 changed files with 386 additions and 144 deletions
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8
kernel/mem.c
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@@ -44,6 +44,7 @@
#include <limits.h>
#include <sysfs.h>
#include <ihk/debug.h>
#include <llist.h>
#include <bootparam.h>
//#define DEBUG_PRINT_MEM
@@ -749,7 +750,6 @@ distance_based:
ihk_mc_get_numa_id(),
npages,
memory_nodes[node].nodes_by_distance[i].id);
}
}
@@ -1546,13 +1546,15 @@ static void numa_init(void)
INIT_LIST_HEAD(&memory_nodes[i].allocators);
memory_nodes[i].nodes_by_distance = 0;
#ifdef IHK_RBTREE_ALLOCATOR
memory_nodes[i].zeroed_chunks.rb_node = 0;
ihk_atomic_set(&memory_nodes[i].zeroing_workers, 0);
ihk_atomic_set(&memory_nodes[i].nr_to_zero_pages, 0);
memory_nodes[i].free_chunks.rb_node = 0;
init_llist_head(&memory_nodes[i].zeroed_list);
init_llist_head(&memory_nodes[i].to_zero_list);
mcs_lock_init(&memory_nodes[i].lock);
memory_nodes[i].min_addr = 0xFFFFFFFFFFFFFFFF;
memory_nodes[i].max_addr = 0;
memory_nodes[i].nr_pages = 0;
memory_nodes[i].nr_zeroed_pages = 0;
memory_nodes[i].nr_free_pages = 0;
#endif
}