stable - 5.11.20
mainline - 4.14.232
mainline - 5.4.118
mainline - 4.9.268
mainline - 5.10.36
mainline - 5.12.3
mainline - 4.4.268
mainline - 4.19.190
mainline - 5.13-rc1
[click here for custom version]
is selected by
/proc file system support
Linux Kernel Configuration
└─> File systems
└─> Pseudo filesystems
└─> /proc file system support
This is a virtual file system providing information about the status
of the system. "Virtual" means that it doesn't take up any space on
your hard disk: the files are created on the fly by the kernel when
you try to access them. Also, you cannot read the files with older
version of the program less: you need to use more or cat.
It's totally cool; for example, "cat /proc/interrupts" gives
information about what the different IRQs are used for at the moment
(there is a small number of Interrupt ReQuest lines in your computer
that are used by the attached devices to gain the CPU's attention --
often a source of trouble if two devices are mistakenly configured
to use the same IRQ). The program procinfo to display some
information about your system gathered from the /proc file system.
Before you can use the /proc file system, it has to be mounted,
meaning it has to be given a location in the directory hierarchy.
That location should be /proc. A command such as "mount -t proc proc
/proc" or the equivalent line in /etc/fstab does the job.
The /proc file system is explained in the file
<file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
("man 5 proc").
This option will enlarge your kernel by about 67 KB. Several
programs depend on this, so everyone should say Y here.
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