FYI, we noticed the below changes on commit 6098b45b32e6baeacc04790773ced9340601d511 ("aio: block exit_aio() until all context requests are completed")
testbox/testcase/testparams: vm-vp-2G/xfstests/4HDD-btrfs-generic-quick 2ff396be602f10b5 6098b45b32e6baeacc04790773 ---------------- -------------------------- %stddev %change %stddev \ | \ 26352 ± 9% -13.6% 22774 ± 1% vmstat.system.cs 10342 ± 6% -12.3% 9066 ± 0% vmstat.system.in 37 ± 4% -12.1% 32 ± 3% time.percent_of_cpu_this_job_got 1197 ± 2% -14.2% 1028 ± 0% vmstat.io.bi 18470 ± 2% -10.1% 16609 ± 1% vmstat.io.bo 157 ± 3% +13.7% 179 ± 0% time.elapsed_time vm-vp-2G: qemu-system-x86_64 -enable-kvm -cpu Penryn Memory: 2G xfstests.generic.239.seconds 30 ++-----------O---------------------------------------------------------+ | O O O O | 25 ++ O | | O O O O O O O O O O O O | | O | 20 O+ | | | 15 ++ | | | 10 ++ | | | | | 5 ++ | | | 0 *+-*-*--*-*--*-*--*-*--*-*--*-*--*--*-*--*-*--*-*--*-*--*-*--*-*--*-*--* [*] bisect-good sample [O] bisect-bad sample To reproduce: apt-get install ruby ruby-oj git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/setup-local job.yaml # the job file attached in this email bin/run-local job.yaml Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Fengguang
--- testcase: xfstests default_monitors: wait: pre-test vmstat: default_watchdogs: watch-oom: watchdog: cpufreq_governor: model: qemu-system-x86_64 -enable-kvm -cpu Penryn nr_vm: 4 nr_cpu: 4 memory: 2G rootfs: debian-x86_64.cgz hdd_partitions: "/dev/vda /dev/vdb /dev/vdc /dev/vdd /dev/vde" swap_partitions: "/dev/vdf" disk: 4HDD fs: - btrfs xfstests: test: - generic-quick enqueue_time: 2014-12-12 14:10:35.953340165 +08:00 branch: renesas-drivers/master commit: bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9 testbox: vm-vp-2G-1 tbox_group: vm-vp-2G kconfig: x86_64-lkp user: lkp queue: reconfirm result_root: "/result/vm-vp-2G/xfstests/4HDD-btrfs-generic-quick/debian-x86_64.cgz/x86_64-lkp/bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9/0" job_file: "/lkp/scheduled/vm-vp-2G-1/reconfirm_xfstests-4HDD-btrfs-generic-quick-debian-x86_64.cgz-x86_64-lkp-bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9-4.yaml" repeat_to: 5 kernel: "/kernel/x86_64-lkp/bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9/vmlinuz-3.17.0" dequeue_time: 2014-12-12 14:27:47.679087537 +08:00 job_state: finished loadavg: 63.87 27.33 10.18 1/108 6683 start_time: '1418365712' end_time: '1418366002' version: "/lkp/lkp/.src-20141212-075301"
mkfs -t btrfs /dev/vdb mkfs -t btrfs /dev/vdd mkfs -t btrfs /dev/vda mkfs -t btrfs /dev/vdc mount -t btrfs /dev/vda /fs/vda mount -t btrfs /dev/vdb /fs/vdb mount -t btrfs /dev/vdc /fs/vdc mount -t btrfs /dev/vdd /fs/vdd export TEST_DIR=/fs/vda export TEST_DEV=/dev/vda export FSTYP=btrfs export SCRATCH_MNT=/fs/scratch mkdir /fs/scratch -p export SCRATCH_DEV_POOL="/dev/vdb /dev/vdc /dev/vdd" ./check generic/001 generic/002 generic/003 generic/004 generic/005 generic/006 generic/007 generic/008 generic/009 generic/010 generic/011 generic/012 generic/014 generic/015 generic/016 generic/017 generic/018 generic/019 generic/020 generic/021 generic/022 generic/023 generic/024 generic/025 generic/026 generic/028 generic/053 generic/062 generic/069 generic/076 generic/077 generic/079 generic/088 generic/089 generic/093 generic/097 generic/099 generic/105 generic/123 generic/124 generic/126 generic/128 generic/129 generic/131 generic/135 generic/141 generic/169 generic/184 generic/193 generic/198 generic/207 generic/210 generic/211 generic/212 generic/213 generic/214 generic/215 generic/219 generic/221 generic/228 generic/234 generic/235 generic/236 generic/237 generic/239 generic/240 generic/245 generic/246 generic/248 generic/249 generic/251 generic/255 generic/257 generic/258 generic/260 generic/277 generic/280 generic/285 generic/286 generic/288 generic/294 generic/307 generic/308 generic/309 generic/312 generic/313 generic/314 generic/315 generic/316 generic/317 generic/318 generic/320 generic/321 generic/322
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