mirror of
https://github.com/torvalds/linux.git
synced 2024-12-07 03:21:32 +00:00
f0c0c115fb
For many workloads, pagetable consumption is significant and it makes sense to expose it in the memory.stat for the memory cgroups. However at the moment, the pagetables are accounted per-zone. Converting them to per-node and using the right interface will correctly account for the memory cgroups as well. [akpm@linux-foundation.org: export __mod_lruvec_page_state to modules for arch/mips/kvm/] Link: https://lkml.kernel.org/r/20201130212541.2781790-3-shakeelb@google.com Signed-off-by: Shakeel Butt <shakeelb@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Roman Gushchin <guro@fb.com> Cc: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
162 lines
5.2 KiB
C
162 lines
5.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/fs.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/hugetlb.h>
|
|
#include <linux/mman.h>
|
|
#include <linux/mmzone.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/percpu.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/swap.h>
|
|
#include <linux/vmstat.h>
|
|
#include <linux/atomic.h>
|
|
#include <linux/vmalloc.h>
|
|
#ifdef CONFIG_CMA
|
|
#include <linux/cma.h>
|
|
#endif
|
|
#include <asm/page.h>
|
|
#include "internal.h"
|
|
|
|
void __attribute__((weak)) arch_report_meminfo(struct seq_file *m)
|
|
{
|
|
}
|
|
|
|
static void show_val_kb(struct seq_file *m, const char *s, unsigned long num)
|
|
{
|
|
seq_put_decimal_ull_width(m, s, num << (PAGE_SHIFT - 10), 8);
|
|
seq_write(m, " kB\n", 4);
|
|
}
|
|
|
|
static int meminfo_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
struct sysinfo i;
|
|
unsigned long committed;
|
|
long cached;
|
|
long available;
|
|
unsigned long pages[NR_LRU_LISTS];
|
|
unsigned long sreclaimable, sunreclaim;
|
|
int lru;
|
|
|
|
si_meminfo(&i);
|
|
si_swapinfo(&i);
|
|
committed = vm_memory_committed();
|
|
|
|
cached = global_node_page_state(NR_FILE_PAGES) -
|
|
total_swapcache_pages() - i.bufferram;
|
|
if (cached < 0)
|
|
cached = 0;
|
|
|
|
for (lru = LRU_BASE; lru < NR_LRU_LISTS; lru++)
|
|
pages[lru] = global_node_page_state(NR_LRU_BASE + lru);
|
|
|
|
available = si_mem_available();
|
|
sreclaimable = global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B);
|
|
sunreclaim = global_node_page_state_pages(NR_SLAB_UNRECLAIMABLE_B);
|
|
|
|
show_val_kb(m, "MemTotal: ", i.totalram);
|
|
show_val_kb(m, "MemFree: ", i.freeram);
|
|
show_val_kb(m, "MemAvailable: ", available);
|
|
show_val_kb(m, "Buffers: ", i.bufferram);
|
|
show_val_kb(m, "Cached: ", cached);
|
|
show_val_kb(m, "SwapCached: ", total_swapcache_pages());
|
|
show_val_kb(m, "Active: ", pages[LRU_ACTIVE_ANON] +
|
|
pages[LRU_ACTIVE_FILE]);
|
|
show_val_kb(m, "Inactive: ", pages[LRU_INACTIVE_ANON] +
|
|
pages[LRU_INACTIVE_FILE]);
|
|
show_val_kb(m, "Active(anon): ", pages[LRU_ACTIVE_ANON]);
|
|
show_val_kb(m, "Inactive(anon): ", pages[LRU_INACTIVE_ANON]);
|
|
show_val_kb(m, "Active(file): ", pages[LRU_ACTIVE_FILE]);
|
|
show_val_kb(m, "Inactive(file): ", pages[LRU_INACTIVE_FILE]);
|
|
show_val_kb(m, "Unevictable: ", pages[LRU_UNEVICTABLE]);
|
|
show_val_kb(m, "Mlocked: ", global_zone_page_state(NR_MLOCK));
|
|
|
|
#ifdef CONFIG_HIGHMEM
|
|
show_val_kb(m, "HighTotal: ", i.totalhigh);
|
|
show_val_kb(m, "HighFree: ", i.freehigh);
|
|
show_val_kb(m, "LowTotal: ", i.totalram - i.totalhigh);
|
|
show_val_kb(m, "LowFree: ", i.freeram - i.freehigh);
|
|
#endif
|
|
|
|
#ifndef CONFIG_MMU
|
|
show_val_kb(m, "MmapCopy: ",
|
|
(unsigned long)atomic_long_read(&mmap_pages_allocated));
|
|
#endif
|
|
|
|
show_val_kb(m, "SwapTotal: ", i.totalswap);
|
|
show_val_kb(m, "SwapFree: ", i.freeswap);
|
|
show_val_kb(m, "Dirty: ",
|
|
global_node_page_state(NR_FILE_DIRTY));
|
|
show_val_kb(m, "Writeback: ",
|
|
global_node_page_state(NR_WRITEBACK));
|
|
show_val_kb(m, "AnonPages: ",
|
|
global_node_page_state(NR_ANON_MAPPED));
|
|
show_val_kb(m, "Mapped: ",
|
|
global_node_page_state(NR_FILE_MAPPED));
|
|
show_val_kb(m, "Shmem: ", i.sharedram);
|
|
show_val_kb(m, "KReclaimable: ", sreclaimable +
|
|
global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE));
|
|
show_val_kb(m, "Slab: ", sreclaimable + sunreclaim);
|
|
show_val_kb(m, "SReclaimable: ", sreclaimable);
|
|
show_val_kb(m, "SUnreclaim: ", sunreclaim);
|
|
seq_printf(m, "KernelStack: %8lu kB\n",
|
|
global_node_page_state(NR_KERNEL_STACK_KB));
|
|
#ifdef CONFIG_SHADOW_CALL_STACK
|
|
seq_printf(m, "ShadowCallStack:%8lu kB\n",
|
|
global_node_page_state(NR_KERNEL_SCS_KB));
|
|
#endif
|
|
show_val_kb(m, "PageTables: ",
|
|
global_node_page_state(NR_PAGETABLE));
|
|
|
|
show_val_kb(m, "NFS_Unstable: ", 0);
|
|
show_val_kb(m, "Bounce: ",
|
|
global_zone_page_state(NR_BOUNCE));
|
|
show_val_kb(m, "WritebackTmp: ",
|
|
global_node_page_state(NR_WRITEBACK_TEMP));
|
|
show_val_kb(m, "CommitLimit: ", vm_commit_limit());
|
|
show_val_kb(m, "Committed_AS: ", committed);
|
|
seq_printf(m, "VmallocTotal: %8lu kB\n",
|
|
(unsigned long)VMALLOC_TOTAL >> 10);
|
|
show_val_kb(m, "VmallocUsed: ", vmalloc_nr_pages());
|
|
show_val_kb(m, "VmallocChunk: ", 0ul);
|
|
show_val_kb(m, "Percpu: ", pcpu_nr_pages());
|
|
|
|
#ifdef CONFIG_MEMORY_FAILURE
|
|
seq_printf(m, "HardwareCorrupted: %5lu kB\n",
|
|
atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10));
|
|
#endif
|
|
|
|
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
|
|
show_val_kb(m, "AnonHugePages: ",
|
|
global_node_page_state(NR_ANON_THPS) * HPAGE_PMD_NR);
|
|
show_val_kb(m, "ShmemHugePages: ",
|
|
global_node_page_state(NR_SHMEM_THPS) * HPAGE_PMD_NR);
|
|
show_val_kb(m, "ShmemPmdMapped: ",
|
|
global_node_page_state(NR_SHMEM_PMDMAPPED) * HPAGE_PMD_NR);
|
|
show_val_kb(m, "FileHugePages: ",
|
|
global_node_page_state(NR_FILE_THPS) * HPAGE_PMD_NR);
|
|
show_val_kb(m, "FilePmdMapped: ",
|
|
global_node_page_state(NR_FILE_PMDMAPPED) * HPAGE_PMD_NR);
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMA
|
|
show_val_kb(m, "CmaTotal: ", totalcma_pages);
|
|
show_val_kb(m, "CmaFree: ",
|
|
global_zone_page_state(NR_FREE_CMA_PAGES));
|
|
#endif
|
|
|
|
hugetlb_report_meminfo(m);
|
|
|
|
arch_report_meminfo(m);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init proc_meminfo_init(void)
|
|
{
|
|
proc_create_single("meminfo", 0, NULL, meminfo_proc_show);
|
|
return 0;
|
|
}
|
|
fs_initcall(proc_meminfo_init);
|