Andrea Righi
297c5d9263
task IO accounting: provide distinct tgid/tid I/O statistics ...
Report per-thread I/O statistics in /proc/pid/task/tid/io and aggregate
parent I/O statistics in /proc/pid/io. This approach follows the same
model used to account per-process and per-thread CPU times.
As a practial application, this allows for example to quickly find the top
I/O consumer when a process spawns many child threads that perform the
actual I/O work, because the aggregated I/O statistics can always be found
in /proc/pid/io.
[ Oleg Nesterov points out that we should check that the task is still
alive before we iterate over the threads, but also says that we can do
that fixup on top of this later. - Linus ]
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Cc: Matt Heaton <matt@hostmonster.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Acked-by-with-comments: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 10:53:47 -07:00
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
2008-07-16 17:25:46 -07:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
gpiolib: allow user-selection
2008-07-25 10:53:30 -07:00
elf: use ELF_CORE_EFLAGS for kcore ELF header flags
2008-07-25 10:53:42 -07:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
gpiolib: allow user-selection
2008-07-25 10:53:30 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
Remove asm/semaphore.h
2008-07-24 08:31:12 -04:00
clean up duplicated alloc/free_thread_info
2008-07-25 10:53:28 -07:00
remove the v850 port
2008-07-24 10:47:24 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
include/asm/ptrace.h userspace headers cleanup
2008-07-25 10:53:39 -07:00
crypto: hash - Move ahash functions into crypto/hash.h
2008-07-10 20:35:18 +08:00
drm/radeon: fixup issue with radeon and PAT support.
2008-07-15 15:48:05 +10:00
task IO accounting: provide distinct tgid/tid I/O statistics
2008-07-25 10:53:47 -07:00
V4L/DVB (8395): saa7134: Fix Kbuild dependency of ir-kbd-i2c
2008-07-20 07:29:03 -03:00
include: use get/put_unaligned_* helpers
2008-07-25 10:53:26 -07:00
RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT event
2008-07-22 14:14:23 -07:00
driver core: remove KOBJ_NAME_LEN define
2008-07-21 21:54:52 -07:00
ALSA: Release v1.0.17
2008-07-14 09:54:43 +02:00
neofb: drop the xtimings structure
2008-07-24 10:47:41 -07:00
xen: implement Xen-specific spinlocks
2008-07-16 11:15:53 +02:00
drm: reorganise drm tree to be more future proof.
2008-07-14 10:45:01 +10:00
297c5d9263