Hi All
I am working on tmpfs. During code analysis I found shmem driver
register itself as tmpfs .
cat /proc/meminfo Shmem field read NR_SHMEM enum filed and shows used
memory in tmpfs
[root@localhost linux-3.8.2]# cat /proc/meminfo | grep -r Shmem
Shmem: 704 kB
[root@localhost linux-3.8.2]#
include/linux/mmzone.h
enum zone_stat_item {
-----cut here-------
NR_SHMEM, /* shmem pages (included tmpfs/GEM pages
-----cut here
}
I have the following query
1-> cat /proc/meminfo | grep -r Shmem show only the used tmpfs memory
or it show used tmpfs memory + mata data also (because I found Shmem
is bit larger then tempfs used memory )
2-> as per the developer comments NR_SHMEM included tmpfs and GEM
pages whct is Gem pages
3-> is my above code analysis is correct?
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