OpenCloudOS-Kernel/include/trace
Robert Jarzmik fe0bfaaff8 mm: trace filemap add and del
Use the events API to trace filemap loading and unloading of file pieces
into the page cache.

This patch aims at tracing the eviction reload cycle of executable and
shared libraries pages in a memory constrained environment.

The typical usage is to spot a specific device and inode (for example
/lib/libc.so) to see the eviction cycles, and find out if frequently
used code is rather spread across many pages (bad) or coallesced (good).

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29 15:54:28 -07:00
..
events mm: trace filemap add and del 2013-04-29 15:54:28 -07:00
define_trace.h treewide: fix comment/printk/variable typos 2012-09-01 10:33:05 -07:00
ftrace.h tracing: Kill unused and puzzled sample code in ftrace.h 2012-11-13 15:51:21 -05:00
syscall.h tracing: Cleanup unnecessary function declarations 2012-10-31 16:45:34 -04:00