From c757249af152c59fd74b85e52e8c090acb33d9c0 Mon Sep 17 00:00:00 2001 From: Shailabh Nagar Date: Fri, 14 Jul 2006 00:24:40 -0700 Subject: [PATCH] per-task-delay-accounting: taskstats interface Create a "taskstats" interface based on generic netlink (NETLINK_GENERIC family), for getting statistics of tasks and thread groups during their lifetime and when they exit. The interface is intended for use by multiple accounting packages though it is being created in the context of delay accounting. This patch creates the interface without populating the fields of the data that is sent to the user in response to a command or upon the exit of a task. Each accounting package interested in using taskstats has to provide an additional patch to add its stats to the common structure. [akpm@osdl.org: cleanups, Kconfig fix] Signed-off-by: Shailabh Nagar Signed-off-by: Balbir Singh Cc: Jes Sorensen Cc: Peter Chubb Cc: Erich Focht Cc: Levent Serinol Cc: Jay Lan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/Kconfig | 13 +++++++++++++ init/main.c | 2 ++ 2 files changed, 15 insertions(+) (limited to 'init') diff --git a/init/Kconfig b/init/Kconfig index 90498a3e53da..56a7093b4e4c 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -158,6 +158,19 @@ config BSD_PROCESS_ACCT_V3 for processing it. A preliminary version of these tools is available at . +config TASKSTATS + bool "Export task/process statistics through netlink (EXPERIMENTAL)" + depends on NET + default n + help + Export selected statistics for tasks/processes through the + generic netlink interface. Unlike BSD process accounting, the + statistics are available during the lifetime of tasks/processes as + responses to commands. Like BSD accounting, they are sent to user + space on task exit. + + Say N if unsure. + config TASK_DELAY_ACCT bool "Enable per-task delay accounting (EXPERIMENTAL)" help diff --git a/init/main.c b/init/main.c index 9e8e8c152142..8651a720a092 100644 --- a/init/main.c +++ b/init/main.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include #include @@ -575,6 +576,7 @@ asmlinkage void __init start_kernel(void) proc_root_init(); #endif cpuset_init(); + taskstats_init_early(); delayacct_init(); check_bugs(); -- cgit v1.2.1