All of lore.kernel.org
 help / color / mirror / Atom feed
From: Peter Zijlstra <peterz@infradead.org>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Waiman Long <waiman.long@hpe.com>, Jason Low <jason.low2@hpe.com>,
	Ding Tianhong <dingtianhong@huawei.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Will Deacon <Will.Deacon@arm.com>, Ingo Molnar <mingo@redhat.com>,
	Imre Deak <imre.deak@intel.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Davidlohr Bueso <dave@stgolabs.net>,
	Tim Chen <tim.c.chen@linux.intel.com>,
	Terry Rudd <terry.rudd@hpe.com>,
	"Paul E. McKenney" <paulmck@us.ibm.com>,
	Jason Low <jason.low2@hp.com>,
	Peter Zijlstra <peterz@infradead.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>,
	Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: [RFC][PATCH -v2 0/4] locking/mutex: Rewrite basic mutex
Date: Thu, 25 Aug 2016 20:37:34 +0200	[thread overview]
Message-ID: <20160825183734.113736626@infradead.org> (raw)

... might still eat your pets and set your house on fire ...

Passes reaim high_systime on 4 socket haswell..

4.8.0-rc3-00185-g9f55477  +2		       +all
Forks  Jobs/min		  Jobs/min             Jobs/min 
10     1040.00            1039.83              1039.83  
20     1600.00            1599.79              1600.00  
30     2127.27            2127.27              2127.03  
40     2599.73            2599.46              2599.19  
50     3088.50            3088.50              3088.50  
60     3531.08            3531.08              3531.41  
70     3969.83            3969.47              3969.83  
80     4377.80            4377.80              4377.80  
90     4797.95            4798.77              4798.77  
100    5198.27            5198.27              5198.70  
200    9038.89            9038.89              9040.20  
300   12642.67           12643.52             12643.52  
400   15970.31           15993.85             15994.87  
500   19365.65           19339.24             19368.06  
600   22537.92           22542.00             22513.53  
700   25536.39           25653.37             25552.83  
800   28673.18           28664.94             28671.53  
900   31596.71           31685.85             31700.16  
1000  34651.27           34643.57             34649.34  
1100  37679.09           37693.57             37693.57  
1200  40675.76           40675.76             40175.98  
1300  43573.08           43575.42             42993.43  
1400  46398.98           46406.37             46440.91  
1500  48977.03           49203.60             48432.16  
1600  51940.48           51970.23             51037.73  
1700  54929.58           54646.61             54923.89  
1800  57432.12           57538.04             57529.19  
1900  60437.38           60434.30             60446.62  
2000  62950.82           62973.05             61760.78  

Still need to add spinning to the top waiter etc... lockdep is still
broken and there might still be races.

---
 arch/alpha/include/asm/mutex.h           |   9 -
 arch/arc/include/asm/mutex.h             |  18 --
 arch/arm/include/asm/mutex.h             |  21 --
 arch/arm64/include/asm/Kbuild            |   1 -
 arch/avr32/include/asm/mutex.h           |   9 -
 arch/blackfin/include/asm/Kbuild         |   1 -
 arch/c6x/include/asm/mutex.h             |   6 -
 arch/cris/include/asm/mutex.h            |   9 -
 arch/frv/include/asm/mutex.h             |   9 -
 arch/h8300/include/asm/mutex.h           |   9 -
 arch/hexagon/include/asm/mutex.h         |   8 -
 arch/ia64/include/asm/mutex.h            |  90 --------
 arch/m32r/include/asm/mutex.h            |   9 -
 arch/m68k/include/asm/Kbuild             |   1 -
 arch/metag/include/asm/Kbuild            |   1 -
 arch/microblaze/include/asm/mutex.h      |   1 -
 arch/mips/include/asm/Kbuild             |   1 -
 arch/mn10300/include/asm/mutex.h         |  16 --
 arch/nios2/include/asm/mutex.h           |   1 -
 arch/openrisc/include/asm/mutex.h        |  27 ---
 arch/parisc/include/asm/Kbuild           |   1 -
 arch/powerpc/include/asm/mutex.h         | 132 ------------
 arch/s390/include/asm/mutex.h            |   9 -
 arch/score/include/asm/mutex.h           |   6 -
 arch/sh/include/asm/mutex-llsc.h         | 109 ----------
 arch/sh/include/asm/mutex.h              |  12 --
 arch/sparc/include/asm/Kbuild            |   1 -
 arch/tile/include/asm/Kbuild             |   1 -
 arch/um/include/asm/Kbuild               |   1 -
 arch/unicore32/include/asm/mutex.h       |  20 --
 arch/x86/include/asm/mutex.h             |   5 -
 arch/x86/include/asm/mutex_32.h          | 110 ----------
 arch/x86/include/asm/mutex_64.h          | 127 -----------
 arch/xtensa/include/asm/mutex.h          |   9 -
 drivers/gpu/drm/i915/i915_gem_shrinker.c |  26 +--
 include/asm-generic/mutex-dec.h          |  88 --------
 include/asm-generic/mutex-null.h         |  19 --
 include/asm-generic/mutex-xchg.h         | 120 -----------
 include/asm-generic/mutex.h              |   9 -
 include/linux/mutex-debug.h              |  24 ---
 include/linux/mutex.h                    |  46 ++--
 kernel/Kconfig.locks                     |   2 +-
 kernel/locking/mutex-debug.c             |  13 --
 kernel/locking/mutex-debug.h             |  10 -
 kernel/locking/mutex.c                   | 347 +++++++++++++++----------------
 kernel/locking/mutex.h                   |  26 ---
 kernel/sched/core.c                      |   2 +-
 47 files changed, 199 insertions(+), 1323 deletions(-)

             reply	other threads:[~2016-08-25 18:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-25 18:37 Peter Zijlstra [this message]
2016-08-25 18:37 ` [RFC][PATCH -v2 1/4] locking/drm/i915: Kill mutex trickery Peter Zijlstra
2016-08-25 19:36   ` Daniel Vetter
2016-08-25 19:59     ` Waiman Long
2016-08-25 18:37 ` [RFC][PATCH -v2 2/4] locking/mutex: Rework mutex::owner Peter Zijlstra
2016-08-25 18:37 ` [RFC][PATCH -v2 3/4] locking/mutex: Allow MUTEX_SPIN_ON_OWNER when DEBUG_MUTEXES Peter Zijlstra
2016-08-25 18:37 ` [RFC][PATCH -v2 4/4] locking/mutex: Add lock handoff to avoid starvation Peter Zijlstra
2016-08-25 22:00   ` Waiman Long
2016-08-25 22:23     ` Peter Zijlstra
2016-08-26 14:30       ` Waiman Long
2016-08-26 15:18         ` Peter Zijlstra
2016-08-26 23:40           ` Waiman Long
2016-08-29 15:41             ` Peter Zijlstra
2016-08-30 11:53               ` Peter Zijlstra
2016-08-30 22:32                 ` Waiman Long

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20160825183734.113736626@infradead.org \
    --to=peterz@infradead.org \
    --cc=Will.Deacon@arm.com \
    --cc=chris@chris-wilson.co.uk \
    --cc=daniel.vetter@ffwll.ch \
    --cc=dave@stgolabs.net \
    --cc=dingtianhong@huawei.com \
    --cc=imre.deak@intel.com \
    --cc=jason.low2@hp.com \
    --cc=jason.low2@hpe.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=paulmck@us.ibm.com \
    --cc=terry.rudd@hpe.com \
    --cc=tglx@linutronix.de \
    --cc=tim.c.chen@linux.intel.com \
    --cc=torvalds@linux-foundation.org \
    --cc=waiman.long@hpe.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.