Jens Axboe 0f78ab9899 Revert "Seperate read and write statistics of in_flight requests" ... This reverts commit a9327cac44. Corrado Zoccolo <czoccolo@gmail.com> reports: "with 2.6.32-rc1 I started getting the following strange output from "iostat -kx 2": Linux 2.6.31bisect (et2) 04/10/2009 _i686_ (2 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 10,70 0,00 3,16 15,75 0,00 70,38 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 18,22 0,00 0,67 0,01 14,77 0,02 43,94 0,01 10,53 39043915,03 2629219,87 sdb 60,89 9,68 50,79 3,04 1724,43 50,52 65,95 0,70 13,06 488437,47 2629219,87 avg-cpu: %user %nice %system %iowait %steal %idle 2,72 0,00 0,74 0,00 0,00 96,53 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 sdb 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 avg-cpu: %user %nice %system %iowait %steal %idle 6,68 0,00 0,99 0,00 0,00 92,33 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 sdb 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 avg-cpu: %user %nice %system %iowait %steal %idle 4,40 0,00 0,73 1,47 0,00 93,40 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 sdb 0,00 4,00 0,00 3,00 0,00 28,00 18,67 0,06 19,50 333,33 100,00 Global values for service time and utilization are garbage. For interval values, utilization is always 100%, and service time is higher than normal. I bisected it down to: [a9327cac44] Seperate read and write statistics of in_flight requests and verified that reverting just that commit indeed solves the issue on 2.6.32-rc1." So until this is debugged, revert the bad commit. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2009-10-04 21:04:38 +02:00
..
raid6test	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
.gitignore	gitignore: misc files	2006-01-01 22:21:50 +01:00
bitmap.c	md: remove sparse warnings about lock context.	2009-09-23 18:06:44 +10:00
bitmap.h	md: move headers out of include/linux/raid/	2009-03-31 14:27:03 +11:00
dm-bio-record.h	dm: preserve bi_io_vec when resubmitting bios	2009-04-02 19:55:23 +01:00
dm-crypt.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-delay.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-exception-store.c	dm snapshot: fix on disk chunk size validation	2009-09-04 20:40:43 +01:00
dm-exception-store.h	dm exception store: split set_chunk_size	2009-09-04 20:40:41 +01:00
dm-io.c	dm io: retry after barrier error	2009-06-22 10:12:26 +01:00
dm-ioctl.c	Driver-Core: extend devnode callbacks to provide permissions	2009-09-19 12:50:38 -07:00
dm-kcopyd.c	dm kcopyd: fix callback race	2009-04-09 00:27:17 +01:00
dm-linear.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-log-userspace-base.c	md: Fix "strchr" [drivers/md/dm-log-userspace.ko] undefined!	2009-09-10 14:55:01 -07:00
dm-log-userspace-transfer.c	dm log: userspace add luid to distinguish between concurrent log instances	2009-09-04 20:40:34 +01:00
dm-log-userspace-transfer.h	dm log: userspace add luid to distinguish between concurrent log instances	2009-09-04 20:40:34 +01:00
dm-log.c	dm log: fix create_log_context to use logical_block_size of log device	2009-06-22 10:12:33 +01:00
dm-mpath.c	[SCSI] scsi_dh: Use scsi_dh_set_params() in multipath.	2009-08-22 17:52:15 -05:00
dm-mpath.h	dm mpath: remove is_active from struct dm_path	2008-10-10 13:36:58 +01:00
dm-path-selector.c	dm: path selector use module refcount directly	2009-04-02 19:55:27 +01:00
dm-path-selector.h	dm mpath: add start_io and nr_bytes to path selectors	2009-06-22 10:12:27 +01:00
dm-queue-length.c	dm mpath: add queue length load balancer	2009-06-22 10:12:27 +01:00
dm-raid1.c	bio: first step in sanitizing the bio->bi_rw flag testing	2009-09-11 14:33:31 +02:00
dm-region-hash.c	dm raid1: keep retrying alloc if mempool_alloc failed	2009-06-22 10:12:13 +01:00
dm-round-robin.c	dm mpath: add start_io and nr_bytes to path selectors	2009-06-22 10:12:27 +01:00
dm-service-time.c	dm mpath: add service time load balancer	2009-06-22 10:12:28 +01:00
dm-snap-persistent.c	dm snapshot: fix on disk chunk size validation	2009-09-04 20:40:43 +01:00
dm-snap-transient.c	dm snapshot: move status to exception store	2009-04-02 19:55:35 +01:00
dm-snap.c	dm snapshot: implement iterate devices	2009-09-04 20:40:19 +01:00
dm-stripe.c	block: Optimal I/O limit wrapper	2009-09-14 08:24:52 +02:00
dm-sysfs.c	dm: sysfs add suspended attribute	2009-06-22 10:12:29 +01:00
dm-table.c	dm stripe: expose correct io hints	2009-09-04 20:40:25 +01:00
dm-target.c	dm target: remove struct tt_internal	2009-04-02 19:55:28 +01:00
dm-uevent.c	md: replace remaining __FUNCTION__ occurrences	2008-04-28 08:58:42 -07:00
dm-uevent.h	dm: uevent generate events	2007-10-20 02:01:26 +01:00
dm-zero.c	dm: consolidate target deregistration error handling	2009-01-06 03:04:58 +00:00
dm.c	Revert "Seperate read and write statistics of in_flight requests"	2009-10-04 21:04:38 +02:00
dm.h	dm: remove queue next_ordered workaround for barriers	2009-07-23 20:30:40 +01:00
faulty.c	md: Move check for bitmap presence to personality code.	2009-06-18 08:49:23 +10:00
Kconfig	Merge branch 'dmaengine' into async-tx-next	2009-09-08 17:55:21 -07:00
linear.c	md: report device as congested when suspended	2009-09-23 18:10:29 +10:00
linear.h	md/linear: use call_rcu to free obsolete 'conf' structures.	2009-06-18 08:49:42 +10:00
Makefile	dm raid1: add userspace log	2009-06-22 10:12:35 +01:00
md.c	md: report device as congested when suspended	2009-09-23 18:10:29 +10:00
md.h	md: report device as congested when suspended	2009-09-23 18:10:29 +10:00
mktables.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
multipath.c	md: remove unnecessary memset from multipath.	2009-09-23 18:16:31 +10:00
multipath.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
raid0.c	md: report device as congested when suspended	2009-09-23 18:10:29 +10:00
raid0.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
raid1.c	md: raid-1/10: fix RW bits manipulation	2009-09-23 18:20:15 +10:00
raid1.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
raid5.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx into for-linus	2009-09-23 18:31:11 +10:00
raid5.h	Merge branch 'dmaengine' into async-tx-next	2009-09-08 17:55:21 -07:00
raid6algos.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6altivec.uc	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6int.uc	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6mmx.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6recov.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6sse1.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6sse2.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6x86.h	md: fix typo in FSF address	2009-03-31 14:57:37 +11:00
raid10.c	md: raid-1/10: fix RW bits manipulation	2009-09-23 18:20:15 +10:00
raid10.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
unroll.pl	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00