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authorShailabh Nagar <nagar@watson.ibm.com>2006-07-14 03:24:36 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-15 00:53:56 -0400
commitca74e92b4698276b6696f15a801759f50944f387 (patch)
tree26f0de66d8207608e07ee22389bfc173e773c0c2 /init/Kconfig
parente8f4d97e1b58b50ad6449bb2d35e6632c0236abd (diff)
[PATCH] per-task-delay-accounting: setup
Initialization code related to collection of per-task "delay" statistics which measure how long it had to wait for cpu, sync block io, swapping etc. The collection of statistics and the interface are in other patches. This patch sets up the data structures and allows the statistics collection to be disabled through a kernel boot parameter. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'init/Kconfig')
-rw-r--r--init/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index a5b073a103e7..90498a3e53da 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -158,6 +158,16 @@ config BSD_PROCESS_ACCT_V3
158 for processing it. A preliminary version of these tools is available 158 for processing it. A preliminary version of these tools is available
159 at <http://www.physik3.uni-rostock.de/tim/kernel/utils/acct/>. 159 at <http://www.physik3.uni-rostock.de/tim/kernel/utils/acct/>.
160 160
161config TASK_DELAY_ACCT
162 bool "Enable per-task delay accounting (EXPERIMENTAL)"
163 help
164 Collect information on time spent by a task waiting for system
165 resources like cpu, synchronous block I/O completion and swapping
166 in pages. Such statistics can help in setting a task's priorities
167 relative to other tasks for cpu, io, rss limits etc.
168
169 Say N if unsure.
170
161config SYSCTL 171config SYSCTL
162 bool "Sysctl support" if EMBEDDED 172 bool "Sysctl support" if EMBEDDED
163 default y 173 default y