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查看cmdline,没有指定大页面.还有运行时的hugepages,目录中只有2M的hugepage条目,没有指定.
# cat /proc/cmdline BOOT_IMAGE=/vmlinuz-3.11.0-26-generic root=UUID=7e5b93c9-ace5-4a9d-8623-c6718a2d720a ro console=ttyS0,9600 console=tty0 rootdelay=90 nomodes _hugepages 3:~# cat /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr 0 ^C _hugepages 3:~# cat /sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr 0 # free -k @R_503_10586@l used free shared buffers cached Mem: 131911116 43668088 88243028 0 202272 2004796 -/+ buffers/cache: 41461020 90450096 Swap: 3999740 0 3999740 # cat /proc/meminfo Mem@R_503_10586@l: 131911116 kB MemFree: 87704076 kB Buffers: 202272 kB Cached: 2004444 kB SwapCached: 0 kB Active: 38864132 kB Inactive: 1784416 kB Active(anon): 38441104 kB Inactive(anon): 7924 kB Active(filE): 423028 kB Inactive(filE): 1776492 kB Unevictable: 8384 kB Mlocked: 8384 kB Swap@R_503_10586@l: 3999740 kB SwapFree: 3999740 kB Dirty: 120 kB WriteBACk: 0 kB AnonPages: 38450956 kB Mapped: 29576 kB Shmem: 760 kB Slab: 1441772 kB SReclaimable: 184536 kB SUnreclaim: 1257236 kB KernelStack: 11632 kB PageTables: 146568 kB NFS_Unstable: 0 kB Bounce: 0 kB WriteBACkTmp: 0 kB CommitLimit: 69955296 kB Committed_AS: 81453204 kB Vmalloc@R_503_10586@l: 34359738367 kB VmallocUsed: 721460 kB VmallocChunk: 34291709228 kB HardwareCorrupted: 0 kB AnonHugePages: 5980160 kB HugePages_@R_503_10586@l: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 251600 kB DirectMap2M: 5941248 kB **DirectMap1G: 130023424 kB**
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