diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-12-13 09:12:51 +0000 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-12-13 09:12:51 +0000 |
commit | 72aaf09fda49f5919d98d65d35e5179f3acb0497 (patch) | |
tree | 5fd25748f7f5640f8ee8efb86ddca88d12840791 /Documentation/filesystems/proc.txt | |
parent | 67fbc2312312095acc2f19a0b601bac10f84cf9d (diff) | |
parent | 58c2467355ed3154a12ee49d8f8236547145c9d3 (diff) | |
download | op-kernel-dev-72aaf09fda49f5919d98d65d35e5179f3acb0497.zip op-kernel-dev-72aaf09fda49f5919d98d65d35e5179f3acb0497.tar.gz |
Merge git://git.marvell.com/orion into devel
Diffstat (limited to 'Documentation/filesystems/proc.txt')
-rw-r--r-- | Documentation/filesystems/proc.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index bcceb99..bb1b0dd 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -44,6 +44,7 @@ Table of Contents 2.14 /proc/<pid>/io - Display the IO accounting fields 2.15 /proc/<pid>/coredump_filter - Core dump filtering settings 2.16 /proc/<pid>/mountinfo - Information about mounts + 2.17 /proc/sys/fs/epoll - Configuration options for the epoll interface ------------------------------------------------------------------------------ Preface @@ -2483,4 +2484,30 @@ For more information on mount propagation see: Documentation/filesystems/sharedsubtree.txt +2.17 /proc/sys/fs/epoll - Configuration options for the epoll interface +-------------------------------------------------------- + +This directory contains configuration options for the epoll(7) interface. + +max_user_instances +------------------ + +This is the maximum number of epoll file descriptors that a single user can +have open at a given time. The default value is 128, and should be enough +for normal users. + +max_user_watches +---------------- + +Every epoll file descriptor can store a number of files to be monitored +for event readiness. Each one of these monitored files constitutes a "watch". +This configuration option sets the maximum number of "watches" that are +allowed for each user. +Each "watch" costs roughly 90 bytes on a 32bit kernel, and roughly 160 bytes +on a 64bit one. +The current default value for max_user_watches is the 1/32 of the available +low memory, divided for the "watch" cost in bytes. + + ------------------------------------------------------------------------------ + |