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Message-ID: <20140315014643.GB19456@localhost>
Date: Sat, 15 Mar 2014 09:46:43 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Alex Shi <alex.shi@...aro.org>
Cc: LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [sched/balance] BUG: unable to handle kernel paging request at
ffffffff00000058
Alex, we noticed the below changes in
https://github.com/alexshi/power-scheduling.git single-balance
commit e1f728f230025ba2f2ed71e19b156291f53b68fe ("sched/balance: replace idle_balance")
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
0 +Inf% 1 brickland2/fake/boot/1
0 +Inf% 1 TOTAL dmesg.BUG:unable_to_haPROGRESS_CODE:V3020003_I0
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
0 +Inf% 1 brickland2/fake/boot/1
0 +Inf% 1 TOTAL dmesg.Kernel_panic-not_syncing:Fatal_exception_in_interrupt
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
0 +Inf% 0 ~81% brickland2/fake/boot/1
0 +Inf% 0 ~81% TOTAL dmesg.BUG:unable_to_handle_kernel_NULL_pointer_dereference
[ 3.814901] PM: Registering ACPI NVS region [mem 0x650a0000-0x65375fff] (2973696 bytes)
[ 3.816130] PM: Registering ACPI NVS region [mem 0x65df8000-0x66df7fff] (16777216 bytes)
[ 3.820540] PM: Registering ACPI NVS region [mem 0x7accf000-0x7b6fefff] (10682368 bytes)
[ 3.824649] BUG: unable to handle kernel paging request at ffffffff00000058
[ 3.828000] IP: [<ffffffff810f6389>] wq_worker_waking_up+0x14/0x5b
[ 3.828000] PGD 220d067 PUD 0
[ 3.828000] Oops: 0000 [#1] SMP
[ 3.828000] Modules linked in:
[ 3.828000] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc6-00009-ge1f728f #1
[ 3.828000] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BKLDSDP1.86B.0031.R01.1304221600 04/22/2013
[ 3.828000] task: ffff8808541f8000 ti: ffff8808541e6000 task.ti: ffff8808541e6000
[ 3.828000] RIP: 0010:[<ffffffff810f6389>] [<ffffffff810f6389>] wq_worker_waking_up+0x14/0x5b
[ 3.828000] RSP: 0000:ffff8808541e7cf0 EFLAGS: 00010002
[ 3.828000] RAX: ffffffff00000000 RBX: ffff8808543b0910 RCX: ffffffff824ee1c0
[ 3.828000] RDX: 00000005811058a8 RSI: 0000000000000001 RDI: ffff8808543b0910
[ 3.828000] RBP: ffff8808541e7d00 R08: 000000000000064d R09: 000000000000b7f9
[ 3.828000] R10: 0000000000000027 R11: 0000000000006bd9 R12: 0000000000000001
[ 3.828000] R13: 0000000000013000 R14: 0000000000000001 R15: 0000000000000001
[ 3.828000] FS: 0000000000000000(0000) GS:ffff88085f800000(0000) knlGS:0000000000000000
[ 3.828000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.828000] CR2: ffffffff00000058 CR3: 000000000220c000 CR4: 00000000001407f0
[ 3.828000] Stack:
[ 3.828000] ffff8808543b0910 ffff88085f833000 ffff8808541e7d20 ffffffff81105a04
[ 3.828000] ffff8808543b0910 ffff88085f833000 ffff8808541e7d68 ffffffff81108259
[ 3.828000] 0000000000000046 ffff8808543b0f24 ffff8808543b0910 ffff88085f838560
[ 3.828000] Call Trace:
[ 3.828000] [<ffffffff81105a04>] ttwu_do_activate.constprop.88+0x4f/0x61
[ 3.828000] [<ffffffff81108259>] try_to_wake_up+0x1f7/0x228
[ 3.828000] [<ffffffff811082be>] wake_up_process+0x34/0x37
[ 3.828000] [<ffffffff810f43c0>] wake_up_worker+0x24/0x26
[ 3.828000] [<ffffffff810f4e4f>] pwq_adjust_max_active+0x7f/0xaa
[ 3.828000] [<ffffffff810f4ea9>] link_pwq+0x2f/0x4a
[ 3.828000] [<ffffffff810f7a4b>] __alloc_workqueue_key+0x29c/0x459
[ 3.828000] [<ffffffff8236ece1>] ? pm_debugfs_init+0x24/0x24
[ 3.828000] [<ffffffff8236ecff>] pm_init+0x1e/0x7b
[ 3.828000] [<ffffffff810002d2>] do_one_initcall+0xa4/0x13a
[ 3.828000] [<ffffffff810f9a0e>] ? parse_args+0x25f/0x33d
[ 3.828000] [<ffffffff8234ff94>] kernel_init_freeable+0x1a9/0x22e
[ 3.828000] [<ffffffff8234f78f>] ? do_early_param+0x88/0x88
[ 3.828000] [<ffffffff81a31495>] ? rest_init+0x89/0x89
[ 3.828000] [<ffffffff81a314a3>] kernel_init+0xe/0xdf
[ 3.828000] [<ffffffff81a4e3bc>] ret_from_fork+0x7c/0xb0
[ 3.828000] [<ffffffff81a31495>] ? rest_init+0x89/0x89
[ 3.828000] Code: 46 40 83 60 14 df 48 83 c4 28 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 54 41 89 f4 53 e8 c6 53 00 00 <f7> 40 58 c8 01 00 00 48 89 c3 75 36 48 8b 40 48 44 39 60 04 74
[ 3.828000] RIP [<ffffffff810f6389>] wq_worker_waking_up+0x14/0x5b
[ 3.828000] RSP <ffff8808541e7cf0>
[ 3.828000] CR2: ffffffff00000058
[ 3.828000] ---[ end trace 5d87af0bad79b4cd ]---
[ 3.828000] Kernel panic - not syncing: Fatal exception
Full dmesg is attached.
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
45357 ~ 2% +254.8% 160914 ~19% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
45357 ~ 2% +254.8% 160914 ~19% TOTAL proc-vmstat.kswapd_low_wmark_hit_quickly
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
45379 ~ 2% +254.7% 160970 ~19% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
45379 ~ 2% +254.7% 160970 ~19% TOTAL proc-vmstat.pageoutrun
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
5174 ~33% +148.9% 12880 ~15% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
5174 ~33% +148.9% 12880 ~15% TOTAL proc-vmstat.numa_foreign
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
5174 ~33% +148.9% 12880 ~15% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
5174 ~33% +148.9% 12880 ~15% TOTAL proc-vmstat.numa_miss
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
4821 ~38% +138.9% 11515 ~20% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
4821 ~38% +138.9% 11515 ~20% TOTAL numa-numastat.node0.numa_miss
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
4821 ~38% +138.9% 11515 ~20% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
4821 ~38% +138.9% 11515 ~20% TOTAL numa-numastat.node1.numa_foreign
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
5442 ~43% +134.3% 12750 ~29% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
5442 ~43% +134.3% 12750 ~29% TOTAL numa-numastat.node0.other_node
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
47 ~15% +139.1% 113 ~35% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
47 ~15% +139.1% 113 ~35% TOTAL numa-vmstat.node1.nr_vmscan_immediate_reclaim
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
4663 ~39% +103.4% 9487 ~22% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
4663 ~39% +103.4% 9487 ~22% TOTAL numa-vmstat.node1.numa_foreign
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
4664 ~39% +103.4% 9488 ~22% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
4664 ~39% +103.4% 9488 ~22% TOTAL numa-vmstat.node0.numa_miss
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
8267 ~21% +93.1% 15967 ~12% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
8267 ~21% +93.1% 15967 ~12% TOTAL proc-vmstat.numa_other
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
8.622e+08 ~13% +85.4% 1.599e+09 ~13% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
8.622e+08 ~13% +85.4% 1.599e+09 ~13% TOTAL cpuidle.C6-NHM.time
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
316455 ~ 8% +69.9% 537599 ~11% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
316455 ~ 8% +69.9% 537599 ~11% TOTAL cpuidle.C6-NHM.usage
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.03 ~ 6% -38.3% 0.64 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.03 ~ 6% -38.3% 0.64 ~ 7% TOTAL perf-profile.cpu-cycles._raw_read_lock.start_this_handle.jbd2__journal_start.__ext4_journal_start_sb.ext4_da_write_begin
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1543 ~ 2% +47.3% 2273 ~12% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1543 ~ 2% +47.3% 2273 ~12% TOTAL numa-vmstat.node1.nr_alloc_batch
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
345613 ~22% -25.9% 256152 ~ 5% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
345613 ~22% -25.9% 256152 ~ 5% TOTAL ftrace.writeback_single_inode.sdk.index
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
2.09 ~ 2% -22.7% 1.62 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
2.09 ~ 2% -22.7% 1.62 ~ 7% TOTAL perf-profile.cpu-cycles.jbd2_journal_add_journal_head.jbd2_journal_get_write_access.__ext4_journal_get_write_access.ext4_reserve_inode_write.ext4_mark_inode_dirty
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
10 ~ 6% +40.7% 15 ~ 6% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
10 ~ 6% +40.7% 15 ~ 6% TOTAL ftrace.writeback_single_inode.sdf.age
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
238248 ~ 5% +27.0% 302589 ~17% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
238248 ~ 5% +27.0% 302589 ~17% TOTAL ftrace.writeback_single_inode.sdm.index
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.05 ~ 3% -20.3% 0.84 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.05 ~ 3% -20.3% 0.84 ~ 7% TOTAL perf-profile.cpu-cycles.jbd2_journal_put_journal_head.__ext4_handle_dirty_metadata.ext4_mark_iloc_dirty.ext4_mark_inode_dirty.ext4_dirty_inode
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
10 ~ 9% +30.8% 13 ~12% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
10 ~ 9% +30.8% 13 ~12% TOTAL ftrace.writeback_single_inode.sdl.age
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
237566 ~ 5% +24.0% 294617 ~ 4% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
237566 ~ 5% +24.0% 294617 ~ 4% TOTAL ftrace.writeback_single_inode.sdl.index
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
6.384e+08 ~18% +38.3% 8.829e+08 ~20% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
6.384e+08 ~18% +38.3% 8.829e+08 ~20% TOTAL cpuidle.C1-NHM.time
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3094 ~ 2% +26.4% 3909 ~ 4% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3094 ~ 2% +26.4% 3909 ~ 4% TOTAL proc-vmstat.nr_alloc_batch
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
243876 ~ 6% +18.1% 288069 ~ 2% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
243876 ~ 6% +18.1% 288069 ~ 2% TOTAL ftrace.writeback_single_inode.sde.index
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.00 ~ 3% -15.0% 0.85 ~ 4% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.00 ~ 3% -15.0% 0.85 ~ 4% TOTAL perf-profile.cpu-cycles.jbd2_journal_put_journal_head.__ext4_journal_get_write_access.ext4_reserve_inode_write.ext4_mark_inode_dirty.ext4_dirty_inode
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
40090 ~ 0% -14.5% 34267 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
40090 ~ 0% -14.5% 34267 ~ 7% TOTAL numa-vmstat.node0.nr_writeback
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
160446 ~ 0% -14.5% 137210 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
160446 ~ 0% -14.5% 137210 ~ 7% TOTAL numa-meminfo.node0.Writeback
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.33 ~ 2% -17.7% 1.10 ~ 3% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.33 ~ 2% -17.7% 1.10 ~ 3% TOTAL perf-profile.cpu-cycles.jbd2_journal_grab_journal_head.jbd2_journal_dirty_metadata.__ext4_handle_dirty_metadata.ext4_mark_iloc_dirty.ext4_mark_inode_dirty
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
17914134 ~ 1% -12.7% 15634924 ~ 8% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
17914134 ~ 1% -12.7% 15634924 ~ 8% TOTAL proc-vmstat.pgsteal_kswapd_dma32
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
17948005 ~ 1% -12.7% 15670164 ~ 8% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
17948005 ~ 1% -12.7% 15670164 ~ 8% TOTAL proc-vmstat.pgscan_kswapd_dma32
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
18253751 ~ 1% -12.5% 15974544 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
18253751 ~ 1% -12.5% 15974544 ~ 7% TOTAL proc-vmstat.pgrefill_dma32
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
18948889 ~ 1% -12.2% 16635311 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
18948889 ~ 1% -12.2% 16635311 ~ 7% TOTAL proc-vmstat.pgalloc_dma32
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.32 ~ 2% -15.9% 1.11 ~ 5% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.32 ~ 2% -15.9% 1.11 ~ 5% TOTAL perf-profile.cpu-cycles.jbd2_journal_dirty_metadata.__ext4_handle_dirty_metadata.ext4_mark_iloc_dirty.ext4_mark_inode_dirty.ext4_dirty_inode
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.57 ~ 3% -14.3% 1.34 ~ 5% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.57 ~ 3% -14.3% 1.34 ~ 5% TOTAL perf-profile.cpu-cycles.__find_get_block.__getblk.__ext4_get_inode_loc.ext4_get_inode_loc.ext4_reserve_inode_write
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
7.404e+09 ~ 5% -15.1% 6.283e+09 ~ 5% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
7.404e+09 ~ 5% -15.1% 6.283e+09 ~ 5% TOTAL cpuidle.C3-NHM.time
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1917 ~ 2% +15.2% 2208 ~ 5% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1917 ~ 2% +15.2% 2208 ~ 5% TOTAL uptime.idle
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
2.90 ~ 2% -11.5% 2.56 ~ 2% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
2.90 ~ 2% -11.5% 2.56 ~ 2% TOTAL perf-profile.cpu-cycles.start_this_handle.jbd2__journal_start.__ext4_journal_start_sb.ext4_da_write_begin.generic_file_buffered_write
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
2.14 ~ 1% -9.0% 1.95 ~ 3% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
2.14 ~ 1% -9.0% 1.95 ~ 3% TOTAL perf-profile.cpu-cycles.do_get_write_access.jbd2_journal_get_write_access.__ext4_journal_get_write_access.ext4_reserve_inode_write.ext4_mark_inode_dirty
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
79600 ~ 1% +10.9% 88306 ~ 2% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
79600 ~ 1% +10.9% 88306 ~ 2% TOTAL interrupts.IWI
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3.092e+09 ~ 6% -59.9% 1.241e+09 ~ 4% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3.092e+09 ~ 6% -59.9% 1.241e+09 ~ 4% TOTAL perf-stat.node-prefetches
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3.096e+09 ~ 7% -59.4% 1.257e+09 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3.096e+09 ~ 7% -59.4% 1.257e+09 ~ 1% TOTAL perf-stat.LLC-prefetch-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
5.024e+08 ~ 6% -57.9% 2.114e+08 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
5.024e+08 ~ 6% -57.9% 2.114e+08 ~ 7% TOTAL perf-stat.node-prefetch-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
4.226e+08 ~ 3% -58.7% 1.747e+08 ~ 7% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
4.226e+08 ~ 3% -58.7% 1.747e+08 ~ 7% TOTAL perf-stat.node-store-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
7.559e+08 ~ 0% -38.6% 4.642e+08 ~15% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
7.559e+08 ~ 0% -38.6% 4.642e+08 ~15% TOTAL perf-stat.node-load-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
88.85 ~ 1% -31.0% 61.32 ~20% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
88.85 ~ 1% -31.0% 61.32 ~20% TOTAL iostat.sdi.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
88.42 ~ 0% -34.1% 58.26 ~ 8% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
88.42 ~ 0% -34.1% 58.26 ~ 8% TOTAL iostat.sdk.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
78.01 ~ 1% -31.1% 53.74 ~13% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
78.01 ~ 1% -31.1% 53.74 ~13% TOTAL iostat.sdm.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
88.02 ~ 1% -28.3% 63.08 ~15% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
88.02 ~ 1% -28.3% 63.08 ~15% TOTAL iostat.sdj.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3.044e+08 ~ 1% +42.9% 4.351e+08 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3.044e+08 ~ 1% +42.9% 4.351e+08 ~ 1% TOTAL perf-stat.iTLB-load-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3.286e+09 ~ 0% -26.8% 2.406e+09 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3.286e+09 ~ 0% -26.8% 2.406e+09 ~ 1% TOTAL perf-stat.node-loads
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3.284e+09 ~ 0% -26.5% 2.414e+09 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3.284e+09 ~ 0% -26.5% 2.414e+09 ~ 1% TOTAL perf-stat.LLC-load-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.339e+10 ~ 1% -26.0% 9.912e+09 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.339e+10 ~ 1% -26.0% 9.912e+09 ~ 1% TOTAL perf-stat.cache-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
79.24 ~ 0% -26.4% 58.35 ~12% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
79.24 ~ 0% -26.4% 58.35 ~12% TOTAL iostat.sdl.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
87.96 ~ 1% -21.8% 68.81 ~13% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
87.96 ~ 1% -21.8% 68.81 ~13% TOTAL iostat.sdh.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
77.99 ~ 1% -20.3% 62.17 ~ 9% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
77.99 ~ 1% -20.3% 62.17 ~ 9% TOTAL iostat.sdf.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
758476 ~ 3% -15.1% 643811 ~ 2% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
758476 ~ 3% -15.1% 643811 ~ 2% TOTAL perf-stat.cpu-migrations
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
7.433e+09 ~ 5% -15.1% 6.308e+09 ~ 3% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
7.433e+09 ~ 5% -15.1% 6.308e+09 ~ 3% TOTAL perf-stat.LLC-prefetches
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
7.494e+09 ~ 2% -12.4% 6.567e+09 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
7.494e+09 ~ 2% -12.4% 6.567e+09 ~ 1% TOTAL perf-stat.LLC-store-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
88.60 ~ 1% -17.0% 73.58 ~18% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
88.60 ~ 1% -17.0% 73.58 ~18% TOTAL iostat.sdg.wrqm/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
7.545e+09 ~ 1% -10.1% 6.785e+09 ~ 2% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
7.545e+09 ~ 1% -10.1% 6.785e+09 ~ 2% TOTAL perf-stat.node-stores
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3.198e+10 ~ 1% -8.1% 2.939e+10 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3.198e+10 ~ 1% -8.1% 2.939e+10 ~ 1% TOTAL perf-stat.cache-references
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
519 ~ 0% -8.4% 475 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
519 ~ 0% -8.4% 475 ~ 1% TOTAL iostat.sdm.w_await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
519 ~ 0% -8.4% 475 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
519 ~ 0% -8.4% 475 ~ 1% TOTAL iostat.sdm.await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
520 ~ 0% -8.4% 477 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
520 ~ 0% -8.4% 477 ~ 1% TOTAL iostat.sdl.await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
520 ~ 0% -8.3% 477 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
520 ~ 0% -8.3% 477 ~ 1% TOTAL iostat.sdl.w_await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
520 ~ 0% -6.9% 484 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
520 ~ 0% -6.9% 484 ~ 1% TOTAL iostat.sdf.await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
521 ~ 0% -6.7% 486 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
521 ~ 0% -6.7% 486 ~ 1% TOTAL iostat.sdf.w_await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
463 ~ 0% -5.3% 439 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
463 ~ 0% -5.3% 439 ~ 1% TOTAL iostat.sdj.await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
464 ~ 0% -5.3% 439 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
464 ~ 0% -5.3% 439 ~ 1% TOTAL iostat.sdj.w_await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
523 ~ 0% -5.5% 495 ~ 2% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
523 ~ 0% -5.5% 495 ~ 2% TOTAL iostat.sde.w_await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
521 ~ 0% -5.8% 491 ~ 2% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
521 ~ 0% -5.8% 491 ~ 2% TOTAL iostat.sde.await
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.373e+13 ~ 1% -4.9% 1.306e+13 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.373e+13 ~ 1% -4.9% 1.306e+13 ~ 1% TOTAL perf-stat.ref-cycles
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
7.895e+12 ~ 0% -4.7% 7.526e+12 ~ 0% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
7.895e+12 ~ 0% -4.7% 7.526e+12 ~ 0% TOTAL perf-stat.cpu-cycles
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.018e+10 ~ 1% -3.9% 9.791e+09 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.018e+10 ~ 1% -3.9% 9.791e+09 ~ 1% TOTAL perf-stat.LLC-loads
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
33.74 ~ 0% -4.3% 32.27 ~ 0% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
33.74 ~ 0% -4.3% 32.27 ~ 0% TOTAL turbostat.%c0
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
3.196e+11 ~ 0% +4.2% 3.33e+11 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
3.196e+11 ~ 0% +4.2% 3.33e+11 ~ 1% TOTAL perf-stat.L1-icache-load-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
9443 ~ 0% +3.3% 9753 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
9443 ~ 0% +3.3% 9753 ~ 1% TOTAL vmstat.system.cs
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
5898082 ~ 0% +3.2% 6084896 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
5898082 ~ 0% +3.2% 6084896 ~ 1% TOTAL perf-stat.context-switches
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.554e+10 ~ 1% -2.3% 1.517e+10 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.554e+10 ~ 1% -2.3% 1.517e+10 ~ 1% TOTAL perf-stat.L1-dcache-store-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
2.048e+10 ~ 1% -2.4% 1.998e+10 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
2.048e+10 ~ 1% -2.4% 1.998e+10 ~ 1% TOTAL perf-stat.LLC-stores
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
54766 ~ 0% +2.0% 55878 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
54766 ~ 0% +2.0% 55878 ~ 1% TOTAL iostat.sdl.wkB/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
61776 ~ 0% -2.2% 60405 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
61776 ~ 0% -2.2% 60405 ~ 1% TOTAL iostat.sdk.wkB/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
54820 ~ 0% +1.8% 55805 ~ 1% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
54820 ~ 0% +1.8% 55805 ~ 1% TOTAL iostat.sde.wkB/s
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.022e+12 ~ 0% -1.9% 1.003e+12 ~ 0% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.022e+12 ~ 0% -1.9% 1.003e+12 ~ 0% TOTAL perf-stat.branch-load-misses
75921b535f3391b e1f728f230025ba2f2ed71e19
--------------- -------------------------
1.065e+12 ~ 0% +0.9% 1.075e+12 ~ 0% lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-ext4-10dd
1.065e+12 ~ 0% +0.9% 1.075e+12 ~ 0% TOTAL perf-stat.branch-loads
Legend:
~XX% - stddev percent
[+-]XX% - change percent
perf-stat.cache-misses
1.4e+10 ++--------------------------------------------------------------+
1.35e+10 *+. .*.. ..*.. *.. |
| *..*..*..*.. .*. .*..*. .. *..*..*..* |
1.3e+10 ++ *. *. *..*..* |
1.25e+10 ++ |
| |
1.2e+10 ++ |
1.15e+10 ++ |
1.1e+10 ++ |
| |
1.05e+10 ++ |
1e+10 ++ O O O O O O O
| O O O O O O O O |
9.5e+09 O+ O O O O O O |
9e+09 ++--------------------------------------------------------------+
perf-stat.LLC-load-misses
3.4e+09 ++---------------------------------------------------------------+
| .*.. *...*..*..*.. |
3.2e+09 *+.*.. .*. .. * |
| *. *...*..*..*..*..*..*.. .*..* |
| *. |
3e+09 ++ |
| |
2.8e+09 ++ |
| |
2.6e+09 ++ |
| O |
| O O
2.4e+09 ++ O O O O O O O O O O O O O O O O |
O O |
2.2e+09 ++----O----------------------------------------------------------+
perf-stat.node-loads
3.4e+09 ++---------------------------------------------------------------+
| *...*..*.. |
3.2e+09 *+.*.. .*..*.. ..*..*.. .. *..* |
| *. *. *..*..*..*.. *..* |
| .. |
3e+09 ++ * |
| |
2.8e+09 ++ |
| |
2.6e+09 ++ O |
| |
| O O O
2.4e+09 ++ O O O O O O O O O O O O O O |
| O O |
2.2e+09 O+----O----------------------------------------------------------+
perf-stat.node-prefetches
3.5e+09 ++------------------------------------------------*--------------+
*..*.. *. |
3e+09 ++ *.. .*.. .*.. .. *.. |
| *. ..*. *..*..*..*.. .*..* *..* |
| *. *. |
2.5e+09 ++ |
| |
2e+09 ++ |
| |
1.5e+09 ++ |
| O
| O O O O O O O O O O O O O O |
1e+09 O+ O O O O O O |
| |
5e+08 ++---------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Thanks,
Fengguang
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