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Operating Systems Linux Dealing with a really high amount of reads merged Post 302665385 by thmnetwork on Monday 2nd of July 2012 12:02:11 PM
Old 07-02-2012
So is the "reads merged" inclusive or exclusive of reads that were "merged" because of read_ahead_kb? If reads merged isn't a good indicator of when I have read ahead set to the sweet spot then what would be the metric(s) to watch?
 

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INOTIFY_RM_WATCH(2)					     Linux Programmer's Manual					       INOTIFY_RM_WATCH(2)

NAME
inotify_rm_watch - remove an existing watch from an inotify instance SYNOPSIS
#include <sys/inotify.h> int inotify_rm_watch(int fd, uint32_t wd); DESCRIPTION
inotify_rm_watch() removes the watch associated with the watch descriptor wd from the inotify instance associated with the file descriptor fd. Removing a watch causes an IN_IGNORED event to be generated for this watch descriptor. (See inotify(7).) RETURN VALUE
On success, inotify_rm_watch() returns zero, or -1 if an error occurred (in which case, errno is set appropriately). ERRORS
EBADF fd is not a valid file descriptor. EINVAL The watch descriptor wd is not valid; or fd is not an inotify file descriptor. VERSIONS
Inotify was merged into the 2.6.13 Linux kernel. CONFORMING TO
This system call is Linux-specific. SEE ALSO
inotify_add_watch(2), inotify_init(2), inotify(7) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2006-02-07 INOTIFY_RM_WATCH(2)
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