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Diffstat (limited to '3 resources/linux/filesystems/tmpfs.md')
| -rw-r--r-- | 3 resources/linux/filesystems/tmpfs.md | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/3 resources/linux/filesystems/tmpfs.md b/3 resources/linux/filesystems/tmpfs.md deleted file mode 100644 index 624c835..0000000 --- a/3 resources/linux/filesystems/tmpfs.md +++ /dev/null @@ -1,13 +0,0 @@ -Is a [[virtual filesystem]] that is stored in memory; it uses both RAM and swap space. -> Kernel option: CONFIG_TMPFS - -`mount -t tmpfs source target` - -A tmpfs can only grow to 50% of RAM avail. unless overridden with size=nbytes mount option. -Only consumes RAM for actual usage. -Data is ephemeral/volatile. - -Mount stacking: mount over existing /tmp, to improve speed of apps using alot of tmp files, then unmount to delete data. - -Kernel uses tmpfs for [[system v shared memory]] and [[shared anonymous memory mappings]]. -`/dev/shm` or `/run/shm`: [[glibc]] of [[POSIX]] shared memory and [[POSIX]] semaphores.
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