From: Ye Xiaolong <xiaolong.ye@intel.com>
To: Dave Chinner <david@fromorbit.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Bob Peterson <rpeterso@redhat.com>,
Wu Fengguang <fengguang.wu@intel.com>, LKP <lkp@01.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression
Date: Fri, 12 Aug 2016 16:51:24 +0800 [thread overview]
Message-ID: <20160812085124.GB19354@yexl-desktop> (raw)
In-Reply-To: <20160812062934.GA17589@yexl-desktop>
On 08/12, Ye Xiaolong wrote:
>On 08/12, Dave Chinner wrote:
[snip]
>>lkp-folk: the patch I've just tested it attached below - can you
>>feed that through your test and see if it fixes the regression?
>>
>
>Hi, Dave
>
>I am verifying your fix patch in lkp environment now, will send the
>result once I get it.
>
Here is the test result.
commit 636b594f38278080db93f2d67d11d31700924f5d
Author: Dave Chinner <dchinner@redhat.com>
AuthorDate: Fri Aug 12 14:23:44 2016 +0800
Commit: Xiaolong Ye <xiaolong.ye@intel.com>
CommitDate: Fri Aug 12 14:23:44 2016 +0800
When a write occurs that extends the file, we check to see if we
need to preallocate more delalloc space. When we do sub-page
writes, the new iomap write path passes a sub-block write length to
the block mapping code. xfs_iomap_write_delay does not expect to be
pased byte counts smaller than one filesystem block, so it ends up
checking the BMBT on for blocks beyond EOF on every write,
regardless of whether we need to or not. This causes a regression in
aim7 benchmarks as it is full of sub-page writes.
To fix this, clamp the minimum length of a mapping request coming
through xfs_file_iomap_begin() to one filesystem block. This ensures
we are passing the same length to xfs_iomap_write_delay() as we did
when calling through the get_blocks path. This substantially reduces
the amount of lookup load being placed on the BMBT during sub-block
write loads.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_iomap.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 620fc91..5eaace0 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -1015,10 +1015,15 @@ xfs_file_iomap_begin(
* number pulled out of thin air as a best guess for initial
* testing.
*
+ * xfs_iomap_write_delay() only works if the length passed in is
+ * >= one filesystem block. Hence we need to clamp the minimum
+ * length we map, too.
+ *
* Note that the values needs to be less than 32-bits wide until
* the lower level functions are updated.
*/
length = min_t(loff_t, length, 1024 * PAGE_SIZE);
+ length = max_t(loff_t, length, (1 << inode->i_blkbits));
if (xfs_get_extsz_hint(ip)) {
/*
* xfs_iomap_write_direct() expects the shared lock. It
f0c6bcba74ac51cb 68a9f5e7007c1afa2cf6830b69 636b594f38278080db93f2d67d
---------------- -------------------------- --------------------------
%stddev %change %stddev %change %stddev
\ | \ | \
484435 ± 0% -13.3% 420004 ± 0% -14.0% 416777 ± 0% aim7.jobs-per-min
6491 ± 3% +30.8% 8491 ± 0% +35.7% 8806 ± 1% aim7.time.involuntary_context_switches
376 ± 0% +28.4% 484 ± 0% +29.6% 488 ± 0% aim7.time.system_time
430512 ± 0% -20.1% 343838 ± 0% -19.7% 345708 ± 0% aim7.time.voluntary_context_switches
37.37 ± 0% +15.3% 43.09 ± 0% +16.1% 43.41 ± 0% aim7.time.elapsed_time
37.37 ± 0% +15.3% 43.09 ± 0% +16.1% 43.41 ± 0% aim7.time.elapsed_time.max
155184 ± 1% -2.1% 151864 ± 1% -2.7% 150937 ± 1% aim7.time.minor_page_faults
0 ± 0% +Inf% 215412 ±141% +Inf% 334416 ± 75% latency_stats.sum.wait_on_page_bit.__migration_entry_wait.migration_entry_wait.handle_pte_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
24772 ± 0% -28.6% 17675 ± 0% -26.7% 18149 ± 2% vmstat.system.cs
26816 ± 8% +10.2% 29542 ± 1% +13.3% 30370 ± 1% interrupts.CAL:Function_call_interrupts
125122 ± 10% -10.7% 111758 ± 12% -11.1% 111223 ± 11% softirqs.SCHED
3906 ± 0% +28.8% 5032 ± 2% +29.1% 5045 ± 1% proc-vmstat.nr_active_file
3444 ± 5% +41.8% 4884 ± 0% +25.0% 4304 ± 11% proc-vmstat.nr_shmem
4092 ± 14% +61.2% 6595 ± 1% +40.0% 5728 ± 15% proc-vmstat.pgactivate
15627 ± 0% +27.7% 19956 ± 1% +27.4% 19902 ± 0% meminfo.Active(file)
16103 ± 3% +14.3% 18405 ± 8% +11.2% 17900 ± 1% meminfo.AnonHugePages
13777 ± 5% +43.1% 19709 ± 0% +25.0% 17220 ± 11% meminfo.Shmem
1724300 ± 27% -40.5% 1025538 ± 1% -41.3% 1012868 ± 0% sched_debug.cfs_rq:/.load.max
1724300 ± 27% -40.5% 1025538 ± 1% -41.3% 1012868 ± 0% sched_debug.cpu.load.max
37.37 ± 0% +15.3% 43.09 ± 0% +16.1% 43.41 ± 0% time.elapsed_time
37.37 ± 0% +15.3% 43.09 ± 0% +16.1% 43.41 ± 0% time.elapsed_time.max
6491 ± 3% +30.8% 8491 ± 0% +35.7% 8806 ± 1% time.involuntary_context_switches
1037 ± 0% +10.8% 1148 ± 0% +10.9% 1149 ± 0% time.percent_of_cpu_this_job_got
376 ± 0% +28.4% 484 ± 0% +29.6% 488 ± 0% time.system_time
430512 ± 0% -20.1% 343838 ± 0% -19.7% 345708 ± 0% time.voluntary_context_switches
319584 ± 1% -26.5% 234868 ± 1% -23.9% 243331 ± 3% cpuidle.C1-IVT.usage
52991525 ± 1% -19.4% 42687208 ± 0% -20.0% 42368754 ± 0% cpuidle.C1-IVT.time
46760 ± 0% -22.4% 36298 ± 0% -21.6% 36681 ± 1% cpuidle.C1E-IVT.usage
3468808 ± 2% -19.8% 2783341 ± 3% -16.9% 2881608 ± 5% cpuidle.C1E-IVT.time
12590471 ± 0% -22.3% 9788585 ± 1% -21.6% 9866515 ± 1% cpuidle.C3-IVT.time
79965 ± 0% -19.0% 64749 ± 0% -19.1% 64654 ± 0% cpuidle.C3-IVT.usage
1.3e+09 ± 0% +13.3% 1.473e+09 ± 0% +13.9% 1.481e+09 ± 0% cpuidle.C6-IVT.time
24.18 ± 0% +9.0% 26.35 ± 0% +9.6% 26.49 ± 0% turbostat.%Busy
686 ± 0% +9.5% 751 ± 0% +9.2% 749 ± 1% turbostat.Avg_MHz
0.28 ± 0% -25.0% 0.21 ± 0% -23.8% 0.21 ± 4% turbostat.CPU%c3
79 ± 1% -0.4% 78 ± 3% -21.5% 62 ± 2% turbostat.CoreTmp
78 ± 0% +0.4% 79 ± 3% -21.2% 62 ± 1% turbostat.PkgTmp
4.74 ± 0% -2.7% 4.61 ± 1% -13.1% 4.12 ± 0% turbostat.RAMWatt
51 ± 0% +0.0% 51 ± 0% +333.3% 221 ± 10% slabinfo.dio.active_objs
51 ± 0% +0.0% 51 ± 0% +333.3% 221 ± 10% slabinfo.dio.num_objs
876 ± 6% +2.8% 900 ± 3% +16.7% 1022 ± 0% slabinfo.nsproxy.active_objs
876 ± 6% +2.8% 900 ± 3% +16.7% 1022 ± 0% slabinfo.nsproxy.num_objs
1975 ± 15% +63.2% 3224 ± 17% +45.5% 2874 ± 15% slabinfo.scsi_data_buffer.active_objs
1975 ± 15% +63.2% 3224 ± 17% +45.5% 2874 ± 15% slabinfo.scsi_data_buffer.num_objs
464 ± 15% +63.3% 758 ± 17% +46.6% 680 ± 15% slabinfo.xfs_efd_item.active_objs
464 ± 15% +63.3% 758 ± 17% +46.6% 680 ± 15% slabinfo.xfs_efd_item.num_objs
1930 ± 0% +33.9% 2585 ± 3% +24.7% 2407 ± 5% numa-vmstat.node0.nr_active_file
466 ± 4% +29.3% 603 ± 14% +28.9% 601 ± 18% numa-vmstat.node0.nr_dirty
1977 ± 1% +23.6% 2444 ± 1% +33.6% 2641 ± 7% numa-vmstat.node1.nr_active_file
11671 ± 3% +55.9% 18197 ± 24% +43.3% 16730 ± 25% numa-vmstat.node1.nr_anon_pages
3809 ± 6% +16.1% 4422 ± 4% +21.6% 4633 ± 4% numa-vmstat.node1.nr_alloc_batch
12026 ± 4% +64.1% 19734 ± 20% +43.7% 17276 ± 22% numa-vmstat.node1.nr_active_anon
7723 ± 0% +32.6% 10238 ± 5% +19.5% 9228 ± 4% numa-meminfo.node0.Active(file)
8774 ± 29% +5.3% 9238 ± 28% +22.5% 10749 ± 24% numa-meminfo.node1.Mapped
7908 ± 1% +22.9% 9722 ± 3% +35.8% 10736 ± 3% numa-meminfo.node1.Active(file)
46721 ± 3% +55.9% 72837 ± 24% +42.8% 66711 ± 26% numa-meminfo.node1.AnonPages
56052 ± 3% +58.2% 88666 ± 17% +42.2% 79696 ± 19% numa-meminfo.node1.Active
48142 ± 4% +64.0% 78943 ± 19% +43.2% 68960 ± 22% numa-meminfo.node1.Active(anon)
2.658e+11 ± 4% +24.7% 3.316e+11 ± 2% +25.9% 3.346e+11 ± 3% perf-stat.branch-instructions
0.41 ± 1% -9.1% 0.37 ± 1% -9.4% 0.37 ± 1% perf-stat.branch-miss-rate
1.09e+09 ± 3% +13.4% 1.237e+09 ± 1% +14.1% 1.244e+09 ± 2% perf-stat.branch-misses
981138 ± 0% -18.1% 803696 ± 0% -16.0% 823913 ± 1% perf-stat.context-switches
1.511e+12 ± 5% +23.4% 1.864e+12 ± 3% +24.4% 1.88e+12 ± 4% perf-stat.cpu-cycles
102600 ± 1% -7.3% 95075 ± 1% -5.2% 97261 ± 1% perf-stat.cpu-migrations
0.26 ± 12% -30.8% 0.18 ± 10% -28.1% 0.19 ± 27% perf-stat.dTLB-load-miss-rate
3.164e+11 ± 1% +39.9% 4.426e+11 ± 4% +40.0% 4.43e+11 ± 1% perf-stat.dTLB-loads
0.03 ± 26% -41.3% 0.02 ± 13% -41.8% 0.02 ± 5% perf-stat.dTLB-store-miss-rate
2.247e+11 ± 6% +26.4% 2.839e+11 ± 2% +29.2% 2.903e+11 ± 5% perf-stat.dTLB-stores
34415974 ± 6% -1.7% 33840719 ± 12% -6.7% 32119462 ± 2% perf-stat.iTLB-load-misses
17863352 ± 4% +2.1% 18245848 ± 2% -7.9% 16460161 ± 2% perf-stat.iTLB-loads
1.49e+12 ± 4% +30.1% 1.939e+12 ± 2% +31.5% 1.959e+12 ± 3% perf-stat.instructions
43348 ± 2% +34.2% 58161 ± 12% +40.9% 61065 ± 5% perf-stat.instructions-per-iTLB-miss
0.99 ± 0% +5.5% 1.04 ± 0% +5.7% 1.04 ± 0% perf-stat.ipc
262799 ± 0% +4.4% 274251 ± 1% +4.3% 274149 ± 0% perf-stat.minor-faults
34.12 ± 1% +2.1% 34.83 ± 0% +3.5% 35.30 ± 1% perf-stat.node-load-miss-rate
46476754 ± 2% +4.6% 48601269 ± 1% +6.6% 49534267 ± 0% perf-stat.node-load-misses
9.96 ± 0% +13.4% 11.30 ± 0% +13.6% 11.31 ± 2% perf-stat.node-store-miss-rate
24460859 ± 1% +14.4% 27971097 ± 1% +13.8% 27844903 ± 0% perf-stat.node-store-misses
262780 ± 0% +4.4% 274227 ± 1% +4.3% 274117 ± 0% perf-stat.page-faults
0.00 ± 0% +Inf% 52.94 ± 0% +Inf% 52.69 ± 0% perf-profile.cycles-pp.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
0.00 ± 0% +Inf% 52.29 ± 0% +Inf% 52.11 ± 0% perf-profile.cycles-pp.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
0.00 ± 0% +Inf% 34.35 ± 0% +Inf% 34.05 ± 0% perf-profile.cycles-pp.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter
0.00 ± 0% +Inf% 16.48 ± 0% +Inf% 16.35 ± 1% perf-profile.cycles-pp.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± 0% +Inf% 16.05 ± 0% +Inf% 16.21 ± 1% perf-profile.cycles-pp.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter
0.00 ± 0% +Inf% 9.85 ± 0% +Inf% 9.75 ± 1% perf-profile.cycles-pp.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 9.25 ± 0% +Inf% 9.18 ± 1% perf-profile.cycles-pp.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor.iomap_apply
0.00 ± 0% +Inf% 9.08 ± 0% +Inf% 9.08 ± 1% perf-profile.cycles-pp.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± 0% +Inf% 7.91 ± 1% +Inf% 7.90 ± 0% perf-profile.cycles-pp.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± 0% +Inf% 4.69 ± 0% +Inf% 4.66 ± 0% perf-profile.cycles-pp.block_write_end.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 4.45 ± 1% +Inf% 4.45 ± 0% perf-profile.cycles-pp.__block_commit_write.isra.24.block_write_end.generic_write_end.iomap_write_actor.iomap_apply
0.00 ± 0% +Inf% 4.14 ± 0% +Inf% 4.12 ± 1% perf-profile.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 3.69 ± 1% +Inf% 3.69 ± 2% perf-profile.cycles-pp.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor
0.00 ± 0% +Inf% 3.64 ± 0% +Inf% 3.62 ± 0% perf-profile.cycles-pp.__block_write_begin_int.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 3.44 ± 1% +Inf% 3.35 ± 2% perf-profile.cycles-pp.mark_page_accessed.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± 0% +Inf% 3.04 ± 1% +Inf% 3.00 ± 3% perf-profile.cycles-pp.xfs_bmapi_read.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± 0% +Inf% 3.22 ± 0% +Inf% 3.15 ± 1% perf-profile.cycles-pp.copy_user_enhanced_fast_string.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± 0% +Inf% 3.06 ± 1% +Inf% 3.09 ± 0% perf-profile.cycles-pp.xfs_bmapi_delay.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 3.05 ± 1% +Inf% 3.05 ± 2% perf-profile.cycles-pp.xfs_bmapi_read.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply
0.00 ± 0% +Inf% 2.78 ± 0% +Inf% 2.83 ± 1% perf-profile.cycles-pp.mark_buffer_dirty.__block_commit_write.isra.24.block_write_end.generic_write_end.iomap_write_actor
0.00 ± 0% +Inf% 2.68 ± 2% +Inf% 2.60 ± 1% perf-profile.cycles-pp.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor
0.00 ± 0% +Inf% 2.56 ± 2% +Inf% 2.46 ± 0% perf-profile.cycles-pp.alloc_pages_current.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
0.00 ± 0% +Inf% 2.43 ± 0% +Inf% 2.42 ± 0% perf-profile.cycles-pp.memset_erms.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 1.97 ± 2% +Inf% 1.90 ± 4% perf-profile.cycles-pp.xfs_bmap_search_extents.xfs_bmapi_read.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 1.55 ± 3% +Inf% 1.62 ± 2% perf-profile.cycles-pp.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor
0.00 ± 0% +Inf% 1.68 ± 1% +Inf% 1.66 ± 2% perf-profile.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
0.00 ± 0% +Inf% 1.73 ± 1% +Inf% 1.71 ± 2% perf-profile.cycles-pp.xfs_bmap_search_extents.xfs_bmapi_delay.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply
0.00 ± 0% +Inf% 1.61 ± 2% +Inf% 1.64 ± 3% perf-profile.cycles-pp.xfs_bmap_search_extents.xfs_bmapi_read.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay.xfs_file_iomap_begin
0.00 ± 0% +Inf% 1.52 ± 2% +Inf% 1.51 ± 4% perf-profile.cycles-pp.workingset_activation.mark_page_accessed.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 1.55 ± 1% +Inf% 1.55 ± 1% perf-profile.cycles-pp.lru_cache_add.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
0.00 ± 0% +Inf% 1.53 ± 1% +Inf% 1.52 ± 1% perf-profile.cycles-pp.create_page_buffers.__block_write_begin_int.iomap_write_begin.iomap_write_actor.iomap_apply
0.00 ± 0% +Inf% 1.46 ± 1% +Inf% 1.45 ± 3% perf-profile.cycles-pp.xfs_bmap_search_multi_extents.xfs_bmap_search_extents.xfs_bmapi_read.xfs_file_iomap_begin.iomap_apply
0.00 ± 0% +Inf% 1.36 ± 1% +Inf% 1.39 ± 1% perf-profile.cycles-pp.unlock_page.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 1.18 ± 1% +Inf% 1.19 ± 1% perf-profile.cycles-pp.create_empty_buffers.create_page_buffers.__block_write_begin_int.iomap_write_begin.iomap_write_actor
0.00 ± 0% +Inf% 1.21 ± 2% +Inf% 1.23 ± 2% perf-profile.cycles-pp.xfs_bmap_search_multi_extents.xfs_bmap_search_extents.xfs_bmapi_read.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay
0.00 ± 0% +Inf% 1.24 ± 2% +Inf% 1.21 ± 2% perf-profile.cycles-pp.xfs_bmap_search_multi_extents.xfs_bmap_search_extents.xfs_bmapi_delay.xfs_iomap_write_delay.xfs_file_iomap_begin
0.00 ± 0% +Inf% 1.14 ± 3% +Inf% 1.16 ± 3% perf-profile.cycles-pp.xfs_ilock.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± 0% +Inf% 1.09 ± 2% +Inf% 1.08 ± 1% perf-profile.cycles-pp.__mark_inode_dirty.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± 0% +Inf% 0.95 ± 0% +Inf% 1.01 ± 3% perf-profile.cycles-pp.radix_tree_lookup_slot.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
43.95 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
25.10 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
13.71 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.__block_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter
11.03 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
10.68 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter
10.96 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter
10.36 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write
10.37 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write
6.46 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.xfs_get_blocks.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin.generic_perform_write
6.34 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin
6.24 ± 0% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.block_write_end.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write
5.93 ± 0% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.__block_commit_write.isra.24.block_write_end.generic_write_end.xfs_vm_write_end.generic_perform_write
3.95 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.copy_user_enhanced_fast_string.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
4.02 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write
3.39 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.mark_buffer_dirty.__block_commit_write.isra.24.block_write_end.generic_write_end.xfs_vm_write_end
3.28 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.xfs_iomap_write_delay.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int.__block_write_begin
3.03 ± 0% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.memset_erms.__block_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write
3.04 ± 3% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write
2.91 ± 3% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.alloc_pages_current.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
1.86 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.create_page_buffers.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin.generic_perform_write
1.72 ± 4% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.unlock_page.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write
1.80 ± 1% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
1.83 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write
1.72 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.lru_cache_add.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
1.44 ± 3% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.create_empty_buffers.create_page_buffers.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin
1.32 ± 4% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.__mark_inode_dirty.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write
1.25 ± 0% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.xfs_bmapi_delay.xfs_iomap_write_delay.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int
1.23 ± 4% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.6.xfs_iomap_write_delay.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int
1.17 ± 3% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.radix_tree_lookup_slot.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
1.04 ± 0% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.xfs_bmapi_read.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int.__block_write_begin
0.98 ± 5% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.cycles-pp.alloc_page_buffers.create_empty_buffers.create_page_buffers.__block_write_begin_int.__block_write_begin
1.79 ± 2% -28.2% 1.28 ± 3% -27.8% 1.29 ± 4% perf-profile.cycles-pp.do_unlinkat.sys_unlink.entry_SYSCALL_64_fastpath
1.79 ± 3% -27.9% 1.29 ± 3% -27.7% 1.30 ± 4% perf-profile.cycles-pp.sys_unlink.entry_SYSCALL_64_fastpath
1.27 ± 0% -22.5% 0.99 ± 4% -24.6% 0.96 ± 4% perf-profile.cycles-pp.destroy_inode.evict.iput.__dentry_kill.dput
2.61 ± 1% -24.3% 1.98 ± 1% -24.1% 1.98 ± 1% perf-profile.cycles-pp.do_filp_open.do_sys_open.sys_creat.entry_SYSCALL_64_fastpath
2.58 ± 1% -24.1% 1.96 ± 0% -24.1% 1.96 ± 1% perf-profile.cycles-pp.path_openat.do_filp_open.do_sys_open.sys_creat.entry_SYSCALL_64_fastpath
1.07 ± 3% -23.3% 0.82 ± 3% -21.1% 0.85 ± 2% perf-profile.cycles-pp.down_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
2.66 ± 1% -24.3% 2.01 ± 1% -23.7% 2.03 ± 1% perf-profile.cycles-pp.do_sys_open.sys_creat.entry_SYSCALL_64_fastpath
2.67 ± 1% -24.2% 2.02 ± 1% -23.8% 2.03 ± 1% perf-profile.cycles-pp.sys_creat.entry_SYSCALL_64_fastpath
1.24 ± 1% -23.1% 0.95 ± 4% -24.2% 0.94 ± 4% perf-profile.cycles-pp.xfs_fs_destroy_inode.destroy_inode.evict.iput.__dentry_kill
1.21 ± 1% -23.4% 0.93 ± 4% -24.7% 0.91 ± 4% perf-profile.cycles-pp.xfs_inactive.xfs_fs_destroy_inode.destroy_inode.evict.iput
0.94 ± 4% -19.8% 0.76 ± 0% -21.6% 0.74 ± 4% perf-profile.cycles-pp.cancel_dirty_page.try_to_free_buffers.xfs_vm_releasepage.try_to_release_page.block_invalidatepage
1.32 ± 2% -21.5% 1.04 ± 1% -22.2% 1.03 ± 3% perf-profile.cycles-pp.xfs_create.xfs_generic_create.xfs_vn_mknod.xfs_vn_create.path_openat
1.42 ± 2% -20.7% 1.13 ± 1% -22.1% 1.11 ± 3% perf-profile.cycles-pp.xfs_vn_create.path_openat.do_filp_open.do_sys_open.sys_creat
2.35 ± 1% -21.0% 1.86 ± 1% -20.7% 1.86 ± 1% perf-profile.cycles-pp.xfs_vm_releasepage.try_to_release_page.block_invalidatepage.xfs_vm_invalidatepage.truncate_inode_page
1.91 ± 3% -16.4% 1.59 ± 1% -19.9% 1.53 ± 1% perf-profile.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.pagecache_get_page
2.07 ± 1% -20.4% 1.65 ± 2% -19.9% 1.66 ± 1% perf-profile.cycles-pp.try_to_free_buffers.xfs_vm_releasepage.try_to_release_page.block_invalidatepage.xfs_vm_invalidatepage
1.42 ± 2% -20.5% 1.13 ± 1% -22.1% 1.10 ± 2% perf-profile.cycles-pp.xfs_vn_mknod.xfs_vn_create.path_openat.do_filp_open.do_sys_open
1.42 ± 2% -21.2% 1.12 ± 1% -22.4% 1.10 ± 3% perf-profile.cycles-pp.xfs_generic_create.xfs_vn_mknod.xfs_vn_create.path_openat.do_filp_open
1.12 ± 2% -17.6% 0.92 ± 4% -22.3% 0.87 ± 4% perf-profile.cycles-pp.__sb_start_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
2.40 ± 1% -21.0% 1.89 ± 2% -20.6% 1.90 ± 1% perf-profile.cycles-pp.try_to_release_page.block_invalidatepage.xfs_vm_invalidatepage.truncate_inode_page.truncate_inode_pages_range
1.29 ± 3% -18.9% 1.04 ± 1% -17.9% 1.06 ± 1% perf-profile.cycles-pp.xfs_ilock.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
3.42 ± 0% -20.9% 2.71 ± 2% -20.3% 2.73 ± 2% perf-profile.cycles-pp.block_invalidatepage.xfs_vm_invalidatepage.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final
5.96 ± 1% -20.0% 4.77 ± 0% -19.4% 4.81 ± 1% perf-profile.cycles-pp.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final.evict.iput
3.54 ± 0% -20.8% 2.81 ± 1% -20.0% 2.83 ± 2% perf-profile.cycles-pp.xfs_vm_invalidatepage.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final.evict
2.55 ± 3% -14.2% 2.19 ± 2% -17.5% 2.10 ± 1% perf-profile.cycles-pp.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin
1.04 ± 2% -18.9% 0.84 ± 1% -19.6% 0.84 ± 0% perf-profile.cycles-pp.__delete_from_page_cache.delete_from_page_cache.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final
1.74 ± 2% -19.9% 1.40 ± 3% -19.3% 1.41 ± 1% perf-profile.cycles-pp.delete_from_page_cache.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final.evict
1.01 ± 3% -17.9% 0.83 ± 2% -18.2% 0.82 ± 1% perf-profile.cycles-pp.down_write.xfs_ilock.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
11.21 ± 2% -18.1% 9.18 ± 0% -18.4% 9.14 ± 1% perf-profile.cycles-pp.evict.iput.__dentry_kill.dput.__fput
11.24 ± 2% -18.1% 9.21 ± 0% -18.4% 9.18 ± 1% perf-profile.cycles-pp.__dentry_kill.dput.__fput.____fput.task_work_run
11.22 ± 2% -18.1% 9.19 ± 0% -18.4% 9.16 ± 1% perf-profile.cycles-pp.iput.__dentry_kill.dput.__fput.____fput
1.79 ± 3% -22.2% 1.39 ± 0% -18.2% 1.46 ± 0% perf-profile.cycles-pp.security_file_permission.rw_verify_area.vfs_write.sys_write.entry_SYSCALL_64_fastpath
11.26 ± 2% -18.1% 9.23 ± 0% -18.3% 9.20 ± 1% perf-profile.cycles-pp.dput.__fput.____fput.task_work_run.exit_to_usermode_loop
11.31 ± 1% -18.1% 9.27 ± 0% -18.2% 9.25 ± 1% perf-profile.cycles-pp.____fput.task_work_run.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath
11.34 ± 2% -18.1% 9.29 ± 0% -18.3% 9.27 ± 1% perf-profile.cycles-pp.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath
11.31 ± 2% -18.1% 9.26 ± 0% -18.3% 9.24 ± 1% perf-profile.cycles-pp.__fput.____fput.task_work_run.exit_to_usermode_loop.syscall_return_slowpath
11.32 ± 1% -18.0% 9.28 ± 0% -18.2% 9.26 ± 1% perf-profile.cycles-pp.task_work_run.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath
11.34 ± 1% -18.1% 9.29 ± 0% -18.2% 9.27 ± 1% perf-profile.cycles-pp.syscall_return_slowpath.entry_SYSCALL_64_fastpath
2.06 ± 3% -22.5% 1.60 ± 2% -18.1% 1.69 ± 0% perf-profile.cycles-pp.rw_verify_area.vfs_write.sys_write.entry_SYSCALL_64_fastpath
9.87 ± 2% -17.5% 8.15 ± 0% -17.6% 8.14 ± 1% perf-profile.cycles-pp.truncate_inode_pages_range.truncate_inode_pages_final.evict.iput.__dentry_kill
9.89 ± 2% -17.4% 8.17 ± 0% -17.5% 8.16 ± 1% perf-profile.cycles-pp.truncate_inode_pages_final.evict.iput.__dentry_kill.dput
1.00 ± 1% -18.0% 0.82 ± 1% -14.3% 0.86 ± 3% perf-profile.cycles-pp.__radix_tree_lookup.radix_tree_lookup_slot.find_get_entry.pagecache_get_page.grab_cache_page_write_begin
51.83 ± 1% +14.3% 59.25 ± 0% +13.8% 58.97 ± 0% perf-profile.cycles-pp.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write.sys_write
1.38 ± 2% -13.3% 1.19 ± 1% -9.9% 1.24 ± 2% perf-profile.cycles-pp.__set_page_dirty.mark_buffer_dirty.__block_commit_write.isra.24.block_write_end.generic_write_end
53.16 ± 1% +13.6% 60.40 ± 0% +13.0% 60.10 ± 0% perf-profile.cycles-pp.xfs_file_write_iter.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
54.10 ± 1% +13.1% 61.20 ± 0% +12.5% 60.86 ± 0% perf-profile.cycles-pp.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
1.32 ± 4% -21.4% 1.04 ± 0% -14.9% 1.13 ± 1% perf-profile.cycles-pp.selinux_file_permission.security_file_permission.rw_verify_area.vfs_write.sys_write
19.79 ± 5% -9.9% 17.84 ± 0% -7.5% 18.31 ± 3% perf-profile.cycles-pp.start_secondary
19.75 ± 5% -9.8% 17.81 ± 0% -7.4% 18.28 ± 3% perf-profile.cycles-pp.cpu_startup_entry.start_secondary
2.50 ± 3% -11.5% 2.21 ± 0% -13.1% 2.17 ± 0% perf-profile.cycles-pp.__pagevec_release.truncate_inode_pages_range.truncate_inode_pages_final.evict.iput
2.39 ± 3% -11.2% 2.12 ± 0% -13.0% 2.08 ± 0% perf-profile.cycles-pp.release_pages.__pagevec_release.truncate_inode_pages_range.truncate_inode_pages_final.evict
59.63 ± 1% +10.2% 65.72 ± 0% +9.7% 65.43 ± 0% perf-profile.cycles-pp.vfs_write.sys_write.entry_SYSCALL_64_fastpath
0.00 ± 0% +Inf% 1.91 ± 1% +Inf% 1.83 ± 1% perf-profile.func.cycles-pp.mark_page_accessed
0.00 ± 0% +Inf% 1.12 ± 1% +Inf% 1.12 ± 0% perf-profile.func.cycles-pp.iomap_write_actor
0.00 ± 0% +Inf% 1.10 ± 3% +Inf% 1.10 ± 2% perf-profile.func.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.8
1.30 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.func.cycles-pp.generic_perform_write
1.08 ± 2% -100.0% 0.00 ± 0% -100.0% 0.00 ± 0% perf-profile.func.cycles-pp.__xfs_get_blocks
0.37 ± 2% +243.6% 1.26 ± 2% +236.4% 1.23 ± 0% perf-profile.func.cycles-pp.xfs_bmap_search_extents
0.70 ± 5% +219.5% 2.24 ± 0% +213.8% 2.20 ± 2% perf-profile.func.cycles-pp.xfs_bmapi_read
0.41 ± 1% +198.4% 1.22 ± 2% +190.2% 1.19 ± 1% perf-profile.func.cycles-pp.xfs_bmap_search_multi_extents
0.64 ± 1% +182.8% 1.81 ± 4% +181.3% 1.80 ± 0% perf-profile.func.cycles-pp.xfs_iext_bno_to_ext
0.46 ± 4% +161.6% 1.20 ± 1% +163.0% 1.21 ± 1% perf-profile.func.cycles-pp.xfs_iomap_write_delay
1.31 ± 2% -46.7% 0.70 ± 0% -46.9% 0.69 ± 2% perf-profile.func.cycles-pp.generic_write_end
2.49 ± 0% -34.5% 1.63 ± 1% -36.0% 1.59 ± 1% perf-profile.func.cycles-pp.__block_commit_write.isra.24
1.50 ± 1% -20.9% 1.19 ± 1% -21.3% 1.18 ± 1% perf-profile.func.cycles-pp.mark_buffer_dirty
3.24 ± 0% -19.8% 2.60 ± 0% -20.0% 2.59 ± 0% perf-profile.func.cycles-pp.memset_erms
3.96 ± 2% -18.4% 3.23 ± 0% -20.3% 3.16 ± 1% perf-profile.func.cycles-pp.copy_user_enhanced_fast_string
1.79 ± 4% -16.8% 1.49 ± 1% -19.6% 1.44 ± 0% perf-profile.func.cycles-pp.__mark_inode_dirty
1.41 ± 3% -20.6% 1.12 ± 3% -21.3% 1.11 ± 3% perf-profile.func.cycles-pp.entry_SYSCALL_64_fastpath
1.16 ± 0% -18.1% 0.95 ± 1% -18.1% 0.95 ± 3% perf-profile.func.cycles-pp._raw_spin_lock
1.16 ± 1% -21.6% 0.91 ± 1% -20.1% 0.93 ± 2% perf-profile.func.cycles-pp.vfs_write
1.75 ± 2% -18.9% 1.42 ± 1% -17.7% 1.44 ± 2% perf-profile.func.cycles-pp.unlock_page
1.32 ± 0% -16.4% 1.10 ± 1% -14.1% 1.13 ± 3% perf-profile.func.cycles-pp.__radix_tree_lookup
1.51 ± 2% +15.4% 1.75 ± 1% +15.9% 1.75 ± 0% perf-profile.func.cycles-pp.__block_write_begin_int
1.02 ± 4% -7.5% 0.94 ± 2% -12.4% 0.89 ± 2% perf-profile.func.cycles-pp.pagecache_get_page
1.05 ± 2% -15.6% 0.88 ± 3% -15.6% 0.88 ± 5% perf-profile.func.cycles-pp.xfs_file_write_iter
raw perf profile data:
"perf-profile.func.cycles-pp.intel_idle": 17.0,
"perf-profile.func.cycles-pp.copy_user_enhanced_fast_string": 3.15,
"perf-profile.func.cycles-pp.memset_erms": 2.59,
"perf-profile.func.cycles-pp.xfs_bmapi_read": 2.25,
"perf-profile.func.cycles-pp.___might_sleep": 2.13,
"perf-profile.func.cycles-pp.mark_page_accessed": 1.8,
"perf-profile.func.cycles-pp.xfs_iext_bno_to_ext": 1.8,
"perf-profile.func.cycles-pp.__block_write_begin_int": 1.74,
"perf-profile.func.cycles-pp.__block_commit_write.isra.24": 1.62,
"perf-profile.func.cycles-pp.up_write": 1.62,
"perf-profile.func.cycles-pp.down_write": 1.48,
"perf-profile.func.cycles-pp.unlock_page": 1.48,
"perf-profile.func.cycles-pp.__mark_inode_dirty": 1.43,
"perf-profile.func.cycles-pp.xfs_iomap_write_delay": 1.23,
"perf-profile.func.cycles-pp.xfs_bmap_search_extents": 1.23,
"perf-profile.func.cycles-pp.__radix_tree_lookup": 1.19,
"perf-profile.func.cycles-pp.xfs_bmap_search_multi_extents": 1.18,
"perf-profile.func.cycles-pp.__might_sleep": 1.17,
"perf-profile.func.cycles-pp.mark_buffer_dirty": 1.16,
"perf-profile.func.cycles-pp.entry_SYSCALL_64_fastpath": 1.12,
"perf-profile.func.cycles-pp.iomap_write_actor": 1.11,
"perf-profile.func.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.8": 1.07,
"perf-profile.func.cycles-pp._raw_spin_lock": 1.0,
"perf-profile.func.cycles-pp.vfs_write": 0.94,
"perf-profile.func.cycles-pp.pagecache_get_page": 0.92,
"perf-profile.func.cycles-pp.xfs_bmapi_delay": 0.92,
"perf-profile.func.cycles-pp.xfs_file_iomap_begin": 0.91,
"perf-profile.func.cycles-pp.xfs_file_write_iter": 0.9,
"perf-profile.func.cycles-pp.workingset_activation": 0.82,
"perf-profile.func.cycles-pp.iomap_apply": 0.77,
"perf-profile.func.cycles-pp.xfs_bmapi_trim_map.isra.14": 0.75,
"perf-profile.func.cycles-pp.xfs_file_buffered_aio_write": 0.74,
"perf-profile.func.cycles-pp.mem_cgroup_zone_lruvec": 0.73,
"perf-profile.func.cycles-pp.native_queued_spin_lock_slowpath": 0.73,
"perf-profile.func.cycles-pp.get_page_from_freelist": 0.72,
"perf-profile.func.cycles-pp.generic_write_end": 0.71,
"perf-profile.func.cycles-pp.__vfs_write": 0.66,
"perf-profile.func.cycles-pp.rwsem_spin_on_owner": 0.66,
"perf-profile.func.cycles-pp.iov_iter_copy_from_user_atomic": 0.66,
"perf-profile.func.cycles-pp.release_pages": 0.65,
"perf-profile.func.cycles-pp.find_get_entry": 0.65,
Thanks,
Xiaolong
next prev parent reply other threads:[~2016-08-12 8:54 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-09 14:33 kernel test robot
2016-08-10 18:24 ` Linus Torvalds
2016-08-10 23:08 ` Dave Chinner
2016-08-10 23:51 ` Linus Torvalds
2016-08-10 23:58 ` [LKP] " Huang, Ying
2016-08-11 0:11 ` Huang, Ying
2016-08-11 0:23 ` Linus Torvalds
2016-08-11 0:33 ` Huang, Ying
2016-08-11 1:00 ` Linus Torvalds
2016-08-11 4:46 ` Dave Chinner
2016-08-15 17:22 ` Huang, Ying
2016-08-16 0:08 ` Dave Chinner
2016-08-11 15:57 ` Christoph Hellwig
2016-08-11 16:55 ` Linus Torvalds
2016-08-11 17:51 ` Huang, Ying
2016-08-11 19:51 ` Linus Torvalds
2016-08-11 20:00 ` Christoph Hellwig
2016-08-11 20:35 ` Linus Torvalds
2016-08-11 22:16 ` Al Viro
2016-08-11 22:30 ` Linus Torvalds
2016-08-11 21:16 ` Huang, Ying
2016-08-11 21:40 ` Linus Torvalds
2016-08-11 22:08 ` Christoph Hellwig
2016-08-12 0:54 ` Dave Chinner
2016-08-12 2:23 ` Dave Chinner
2016-08-12 2:32 ` Linus Torvalds
2016-08-12 2:52 ` Christoph Hellwig
2016-08-12 3:20 ` Linus Torvalds
2016-08-12 4:16 ` Dave Chinner
2016-08-12 5:02 ` Linus Torvalds
2016-08-12 6:04 ` Dave Chinner
2016-08-12 6:29 ` Ye Xiaolong
2016-08-12 8:51 ` Ye Xiaolong [this message]
2016-08-12 10:02 ` Dave Chinner
2016-08-12 10:43 ` Fengguang Wu
2016-08-13 0:30 ` [LKP] [lkp] " Christoph Hellwig
2016-08-13 21:48 ` Christoph Hellwig
2016-08-13 22:07 ` Fengguang Wu
2016-08-13 22:15 ` Christoph Hellwig
2016-08-13 22:51 ` Fengguang Wu
2016-08-14 14:50 ` Fengguang Wu
2016-08-14 16:17 ` Christoph Hellwig
2016-08-14 23:46 ` Dave Chinner
2016-08-14 23:57 ` Fengguang Wu
2016-08-15 14:14 ` Fengguang Wu
2016-08-15 21:22 ` Dave Chinner
2016-08-16 12:20 ` Fengguang Wu
2016-08-15 20:30 ` Huang, Ying
2016-08-22 22:09 ` Huang, Ying
2016-09-26 6:25 ` Huang, Ying
2016-09-26 14:55 ` Christoph Hellwig
2016-09-27 0:52 ` Huang, Ying
2016-08-16 13:25 ` Fengguang Wu
2016-08-13 23:32 ` Dave Chinner
2016-08-12 2:27 ` Linus Torvalds
2016-08-12 3:56 ` Dave Chinner
2016-08-12 18:03 ` Linus Torvalds
2016-08-13 23:58 ` Fengguang Wu
2016-08-15 0:48 ` Dave Chinner
2016-08-15 1:37 ` Linus Torvalds
2016-08-15 2:28 ` Dave Chinner
2016-08-15 2:53 ` Linus Torvalds
2016-08-15 5:00 ` Dave Chinner
[not found] ` <CA+55aFwva2Xffai+Eqv1Jn_NGryk3YJ2i5JoHOQnbQv6qVPAsw@mail.gmail.com>
[not found] ` <CA+55aFy14nUnJQ_GdF=j8Fa9xiH70c6fY2G3q5HQ01+8z1z3qQ@mail.gmail.com>
[not found] ` <CA+55aFxp+rLehC8c157uRbH459wUC1rRPfCVgvmcq5BrG9gkyg@mail.gmail.com>
2016-08-15 22:22 ` Dave Chinner
2016-08-15 22:42 ` Dave Chinner
2016-08-15 23:20 ` Linus Torvalds
2016-08-15 23:48 ` Linus Torvalds
2016-08-16 0:44 ` Dave Chinner
2016-08-16 15:05 ` Mel Gorman
2016-08-16 17:47 ` Linus Torvalds
2016-08-17 15:48 ` Michal Hocko
2016-08-17 16:42 ` Michal Hocko
2016-08-17 15:49 ` Mel Gorman
2016-08-18 0:45 ` Mel Gorman
2016-08-18 7:11 ` Dave Chinner
2016-08-18 13:24 ` Mel Gorman
2016-08-18 17:55 ` Linus Torvalds
2016-08-18 21:19 ` Dave Chinner
2016-08-18 22:25 ` Linus Torvalds
2016-08-19 9:00 ` Michal Hocko
2016-08-19 10:49 ` Mel Gorman
2016-08-19 23:48 ` Dave Chinner
2016-08-20 1:08 ` Linus Torvalds
2016-08-20 12:16 ` Mel Gorman
2016-08-19 15:08 ` Mel Gorman
2016-09-01 23:32 ` Dave Chinner
2016-09-06 15:37 ` Mel Gorman
2016-09-06 15:52 ` Huang, Ying
2016-08-24 15:40 ` Huang, Ying
2016-08-25 9:37 ` Mel Gorman
2016-08-18 2:44 ` Dave Chinner
2016-08-16 0:15 ` Linus Torvalds
2016-08-16 0:38 ` Dave Chinner
2016-08-16 0:50 ` Linus Torvalds
2016-08-16 0:19 ` Dave Chinner
2016-08-16 1:51 ` Linus Torvalds
2016-08-16 22:02 ` Dave Chinner
2016-08-16 23:23 ` Linus Torvalds
2016-08-15 23:01 ` Linus Torvalds
2016-08-16 0:17 ` Dave Chinner
2016-08-16 0:45 ` Linus Torvalds
2016-08-15 5:03 ` Ingo Molnar
2016-08-17 16:24 ` Peter Zijlstra
2016-08-15 12:58 ` Fengguang Wu
2016-08-11 1:16 ` Dave Chinner
2016-08-11 1:32 ` Dave Chinner
2016-08-11 2:36 ` Ye Xiaolong
2016-08-11 3:05 ` Dave Chinner
2016-08-12 1:26 ` Dave Chinner
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