Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1460127
| Path | csiph.com!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Dave Chinner <david@fromorbit.com> |
| Newsgroups | linux.kernel |
| Subject | Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression |
| Date | Thu, 11 Aug 2016 03:20:01 +0200 |
| Message-ID | <s4MP7-4rA-9@gated-at.bofh.it> (permalink) |
| References | <s4gme-n3-29@gated-at.bofh.it> <s4Iiu-1wh-35@gated-at.bofh.it> <s4KNj-3c9-23@gated-at.bofh.it> <s4LzH-3vK-9@gated-at.bofh.it> <s4LzH-3vK-7@gated-at.bofh.it> <s4LT3-3Ri-1@gated-at.bofh.it> <s4M2J-3UA-3@gated-at.bofh.it> <s4Mcp-3XK-5@gated-at.bofh.it> |
| X-Original-To | "Huang, Ying" <ying.huang@intel.com> |
| X-Ironport-Anti-Spam-Filtered | true |
| X-Ironport-Anti-Spam-Result | A2BsBQB+0KtXIAI1LHldg0WBUoJ5g3mdOIxiiB6BfYYXAgIBAQKBYTkUAQEBAQEBAQYBAQEBAQE3AUCEXwEFMgEjIxAIAxgJJQ8FJQMHGhOIMMI+AQEBAQYCASQehUSFFYE5AYhhBZN4hH1HjwiBdYgNhUuMNIN4HoJVgW0qModRAQEB |
| MIME-Version | 1.0 |
| Content-Type | text/plain; charset=iso-8859-1 |
| Content-Disposition | inline |
| Content-Transfer-Encoding | 8bit |
| User-Agent | Mutt/1.5.21 (2010-09-15) |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 146 |
| Organization | linux.* mail to news gateway |
| X-Original-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> |
| X-Original-Date | Thu, 11 Aug 2016 11:16:12 +1000 |
| X-Original-Message-ID | <20160811011612.GT16044@dastard> |
| X-Original-References | <20160809143359.GA11220@yexl-desktop> <CA+55aFyJaT3ufm7kfU=PGi0YtHzBEYYLxcA+PUrka8uQ3=5+bg@mail.gmail.com> <20160810230840.GS16044@dastard> <CA+55aFyR3DxeQimeU+j4gEXku0WJhEuDZPr7PNSDRUQHTaTAXA@mail.gmail.com> <87eg5w18iu.fsf@yhuang-mobile.sh.intel.com> <87a8gk17x7.fsf@yhuang-mobile.sh.intel.com> <CA+55aFyQ6cjKOQZKEuQV9ch+aerW1Q6uGdv+pCS81rX0yjyR6w@mail.gmail.com> <8760r816wf.fsf@yhuang-mobile.sh.intel.com> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1460127 |
Show key headers only | View raw
On Wed, Aug 10, 2016 at 05:33:20PM -0700, Huang, Ying wrote:
> Linus Torvalds <torvalds@linux-foundation.org> writes:
>
> > On Wed, Aug 10, 2016 at 5:11 PM, Huang, Ying <ying.huang@intel.com> wrote:
> >>
> >> Here is the comparison result with perf-profile data.
> >
> > Heh. The diff is actually harder to read than just showing A/B
> > state.The fact that the call chain shows up as part of the symbol
> > makes it even more so.
> >
> > For example:
> >
> >> 0.00 ± -1% +Inf% 1.68 ± 1% 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
> >> 1.80 ± 1% -100.0% 0.00 ± -1% 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
> >
> > Ok, so it went from 1.8% to 1.68%, and isn't actually that big of a
> > change, but it shows up as a big change because the caller changed
> > from xfs_vm_write_begin to iomap_write_begin.
> >
> > There's a few other cases of that too.
> >
> > So I think it would actually be easier to just see "what 20 functions
> > were the hottest" (or maybe 50) before and after separately (just
> > sorted by cycles), without the diff part. Because the diff is really
> > hard to read.
>
> Here it is,
>
> Before:
>
> "perf-profile.func.cycles-pp.intel_idle": 16.88,
> "perf-profile.func.cycles-pp.copy_user_enhanced_fast_string": 3.94,
> "perf-profile.func.cycles-pp.memset_erms": 3.26,
> "perf-profile.func.cycles-pp.__block_commit_write.isra.24": 2.47,
> "perf-profile.func.cycles-pp.___might_sleep": 2.33,
> "perf-profile.func.cycles-pp.__mark_inode_dirty": 1.88,
> "perf-profile.func.cycles-pp.unlock_page": 1.69,
> "perf-profile.func.cycles-pp.up_write": 1.61,
> "perf-profile.func.cycles-pp.__block_write_begin_int": 1.56,
> "perf-profile.func.cycles-pp.down_write": 1.55,
> "perf-profile.func.cycles-pp.mark_buffer_dirty": 1.53,
> "perf-profile.func.cycles-pp.entry_SYSCALL_64_fastpath": 1.47,
> "perf-profile.func.cycles-pp.generic_write_end": 1.36,
> "perf-profile.func.cycles-pp.generic_perform_write": 1.33,
> "perf-profile.func.cycles-pp.__radix_tree_lookup": 1.32,
> "perf-profile.func.cycles-pp.__might_sleep": 1.26,
> "perf-profile.func.cycles-pp._raw_spin_lock": 1.17,
> "perf-profile.func.cycles-pp.vfs_write": 1.14,
> "perf-profile.func.cycles-pp.__xfs_get_blocks": 1.07,
Ok, so that is the old block mapping call in the buffered IO path.
I don't see any of the functions it calls in the profile;
specifically xfs_bmapi_read(), and xfs_iomap_write_delay(), so it
appears the extent mapping and allocation overhead on the old code
totals somewhere under 2-3% of the entire CPU usage.
> "perf-profile.func.cycles-pp.xfs_file_write_iter": 1.03,
> "perf-profile.func.cycles-pp.pagecache_get_page": 1.03,
> "perf-profile.func.cycles-pp.native_queued_spin_lock_slowpath": 0.98,
> "perf-profile.func.cycles-pp.get_page_from_freelist": 0.94,
> "perf-profile.func.cycles-pp.rwsem_spin_on_owner": 0.94,
> "perf-profile.func.cycles-pp.__vfs_write": 0.87,
> "perf-profile.func.cycles-pp.iov_iter_copy_from_user_atomic": 0.87,
> "perf-profile.func.cycles-pp.xfs_file_buffered_aio_write": 0.84,
> "perf-profile.func.cycles-pp.find_get_entry": 0.79,
> "perf-profile.func.cycles-pp._raw_spin_lock_irqsave": 0.78,
>
>
> After:
>
> "perf-profile.func.cycles-pp.intel_idle": 16.82,
> "perf-profile.func.cycles-pp.copy_user_enhanced_fast_string": 3.27,
> "perf-profile.func.cycles-pp.memset_erms": 2.6,
> "perf-profile.func.cycles-pp.xfs_bmapi_read": 2.24,
Straight away - thats' at least 3x more overhead block mapping lookups
with the iomap code.
> "perf-profile.func.cycles-pp.___might_sleep": 2.04,
> "perf-profile.func.cycles-pp.mark_page_accessed": 1.93,
> "perf-profile.func.cycles-pp.__block_write_begin_int": 1.78,
> "perf-profile.func.cycles-pp.up_write": 1.72,
> "perf-profile.func.cycles-pp.xfs_iext_bno_to_ext": 1.7,
Plus this child.
> "perf-profile.func.cycles-pp.__block_commit_write.isra.24": 1.65,
> "perf-profile.func.cycles-pp.down_write": 1.51,
> "perf-profile.func.cycles-pp.__mark_inode_dirty": 1.51,
> "perf-profile.func.cycles-pp.unlock_page": 1.43,
> "perf-profile.func.cycles-pp.xfs_bmap_search_multi_extents": 1.25,
> "perf-profile.func.cycles-pp.xfs_bmap_search_extents": 1.23,
And these two.
> "perf-profile.func.cycles-pp.mark_buffer_dirty": 1.21,
> "perf-profile.func.cycles-pp.xfs_iomap_write_delay": 1.19,
> "perf-profile.func.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.8": 1.15,
And these two.
So, essentially the old code had maybe 2-3% cpu usage overhead in
the block mapping path on this workload, but the new code is, for
some reason, showing at least 8-9% CPU usage overhead. That, right
now, makes no sense at all to me as we should be doing - at worst -
exactly the same number of block mapping calls as the old code.
We need to know what is happening that is different - there's a good
chance the mapping trace events will tell us. Huang, can you get
a raw event trace from the test?
I need to see these events:
xfs_file*
xfs_iomap*
xfs_get_block*
For both kernels. An example trace from 4.8-rc1 running the command
`xfs_io -f -c 'pwrite 0 512k -b 128k' /mnt/scratch/fooey doing an
overwrite and extend of the existing file ends up looking like:
$ sudo trace-cmd start -e xfs_iomap\* -e xfs_file\* -e xfs_get_blocks\*
$ sudo cat /sys/kernel/tracing/trace_pipe
<...>-2946 [001] .... 253971.750304: xfs_file_ioctl: dev 253:32 ino 0x84
xfs_io-2946 [001] .... 253971.750938: xfs_file_buffered_write: dev 253:32 ino 0x84 size 0x40000 offset 0x0 count 0x20000
xfs_io-2946 [001] .... 253971.750961: xfs_iomap_found: dev 253:32 ino 0x84 size 0x40000 offset 0x0 count 131072 type invalid startoff 0x0 startblock 24 blockcount 0x60
xfs_io-2946 [001] .... 253971.751114: xfs_file_buffered_write: dev 253:32 ino 0x84 size 0x40000 offset 0x20000 count 0x20000
xfs_io-2946 [001] .... 253971.751128: xfs_iomap_found: dev 253:32 ino 0x84 size 0x40000 offset 0x20000 count 131072 type invalid startoff 0x0 startblock 24 blockcount 0x60
xfs_io-2946 [001] .... 253971.751234: xfs_file_buffered_write: dev 253:32 ino 0x84 size 0x40000 offset 0x40000 count 0x20000
xfs_io-2946 [001] .... 253971.751236: xfs_iomap_found: dev 253:32 ino 0x84 size 0x40000 offset 0x40000 count 131072 type invalid startoff 0x0 startblock 24 blockcount 0x60
xfs_io-2946 [001] .... 253971.751381: xfs_file_buffered_write: dev 253:32 ino 0x84 size 0x40000 offset 0x60000 count 0x20000
xfs_io-2946 [001] .... 253971.751415: xfs_iomap_prealloc_size: dev 253:32 ino 0x84 prealloc blocks 128 shift 0 m_writeio_blocks 16
xfs_io-2946 [001] .... 253971.751425: xfs_iomap_alloc: dev 253:32 ino 0x84 size 0x40000 offset 0x60000 count 131072 type invalid startoff 0x60 startblock -1 blockcount 0x90
That's the output I need for the complete test - you'll need to use
a better recording mechanism that this (e.g. trace-cmd record,
trace-cmd report) because it will generate a lot of events. Compress
the two report files (they'll be large) and send them to me offlist.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-10 22:30 +0200
Re: [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-11 01:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-11 02:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-11 02:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-11 02:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-11 02:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-11 03:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-11 06:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-15 19:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-16 02:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-11 18:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-11 19:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-11 20:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-11 22:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-11 22:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-11 22:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-12 00:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-12 00:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-11 23:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-12 00:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-12 03:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-12 04:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-12 06:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-12 20:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-14 11:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-15 02:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-15 03:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-15 04:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-15 05:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-15 07:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-16 00:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-16 00:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 01:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 01:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-16 02:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Mel Gorman <mgorman@techsingularity.net> - 2016-08-16 17:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 20:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Michal Hocko <mhocko@kernel.org> - 2016-08-17 17:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Michal Hocko <mhocko@kernel.org> - 2016-08-17 18:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Mel Gorman <mgorman@techsingularity.net> - 2016-08-17 17:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Mel Gorman <mgorman@techsingularity.net> - 2016-08-18 02:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-18 09:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Mel Gorman <mgorman@techsingularity.net> - 2016-08-18 15:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-19 04:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-19 04:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Michal Hocko <mhocko@kernel.org> - 2016-08-19 11:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Mel Gorman <mgorman@techsingularity.net> - 2016-08-19 13:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-20 01:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-20 03:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Mel Gorman <mgorman@techsingularity.net> - 2016-08-20 14:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-19 06:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Mel Gorman <mgorman@techsingularity.net> - 2016-08-19 17:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-24 17:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-18 04:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 02:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-16 02:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 03:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-16 02:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 04:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-17 00:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-17 01:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 01:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-16 02:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-16 02:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Ingo Molnar <mingo@kernel.org> - 2016-08-15 07:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Peter Zijlstra <peterz@infradead.org> - 2016-08-17 18:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-15 15:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-12 04:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-12 04:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-12 05:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-12 05:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-12 06:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-12 07:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-12 08:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Ye Xiaolong <xiaolong.ye@intel.com> - 2016-08-12 08:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Ye Xiaolong <xiaolong.ye@intel.com> - 2016-08-12 11:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-12 12:10 +0200
Re: [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-12 12:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-13 02:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-14 10:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-14 10:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-14 11:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-14 11:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Christoph Hellwig <hch@lst.de> - 2016-08-14 18:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-15 01:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-15 02:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-15 16:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-15 23:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-16 14:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-15 22:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression "Huang\, Ying" <ying.huang@intel.com> - 2016-08-23 00:10 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Fengguang Wu <fengguang.wu@intel.com> - 2016-08-16 15:30 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-14 12:00 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-11 03:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-11 03:40 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Ye Xiaolong <xiaolong.ye@intel.com> - 2016-08-11 04:50 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-11 05:20 +0200
Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Dave Chinner <david@fromorbit.com> - 2016-08-12 03:30 +0200
Re: [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-11 02:00 +0200
csiph-web