Red Hat ENTERPRISE LINUX 4.5.0 Reference Manual page 83

• and
HighTotal HighFree
directly mapped into kernel space. The
used.
• and
LowTotal LowFree
mapped into kernel space. The
• — The total amount of swap available, in kilobytes.
SwapTotal
• — The total amount of swap free, in kilobytes.
SwapFree
• — The total amount of memory, in kilobytes, waiting to be written back to the disk.
Dirty
• — The total amount of memory, in kilobytes, actively being written back to the
Writeback
disk.
• — The total amount of memory, in kilobytes, which have been used to map devices,
Mapped
files, or libraries using the
• — The total amount of memory, in kilobytes, used by the kernel to cache data structures
Slab
for its own use.
• — The total amount of memory, in kilobytes, estimated to complete the
Committed_AS
workload. This value represents the worst case scenario value, and also includes swap
memory.
• — The total amount of memory, in kilobytes, dedicated to the lowest page table
PageTables
level.
• — The total amount of memory, in kilobytes, of total allocated virtual address
VMallocTotal
space.
• — The total amount of memory, in kilobytes, of used virtual address space.
VMallocUsed
• — The largest contiguous block of memory, in kilobytes, of available virtual
VMallocChunk
address space.
• — The total number of hugepages for the system. The number is derived
HugePages_Total
by dividing
Hugepagesize
/proc/sys/vm/hugetlb_pool
architectures.
• — The total number of hugepages available for the system. This statistic
HugePages_Free
only appears on the x86, Itanium, and AMD64 architectures.
• — The size for each hugepages unit in kilobytes. By default, the value is 4096
Hugepagesize
KB on uniprocessor kernels for 32 bit architectures. For SMP, hugemem kernels, and AMD64,
the default is 2048 KB. For Itanium architectures, the default is 262144 KB. This statistic only
appears on the x86, Itanium, and AMD64 architectures.
— The total and free amount of memory, in kilobytes, that is not
HighTotal
— The total and free amount of memory, in kilobytes, that is directly
value can vary based on the type of kernel used.
LowTotal
command.
mmap
by the megabytes set aside for hugepages specified in
. This statistic only appears on the x86, Itanium, and AMD64
value can vary based on the type of kernel
/proc/misc
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