similar to: [PATCH v10 00/19] qspinlock: a 4-byte queue spinlock with PV support

Displaying 20 results from an estimated 10000 matches similar to: "[PATCH v10 00/19] qspinlock: a 4-byte queue spinlock with PV support"

2014 Apr 17
33
[PATCH v9 00/19] qspinlock: a 4-byte queue spinlock with PV support
v8->v9: - Integrate PeterZ's version of the queue spinlock patch with some modification: http://lkml.kernel.org/r/20140310154236.038181843 at infradead.org - Break the more complex patches into smaller ones to ease review effort. - Fix a racing condition in the PV qspinlock code. v7->v8: - Remove one unneeded atomic operation from the slowpath, thus improving
2014 Apr 17
33
[PATCH v9 00/19] qspinlock: a 4-byte queue spinlock with PV support
v8->v9: - Integrate PeterZ's version of the queue spinlock patch with some modification: http://lkml.kernel.org/r/20140310154236.038181843 at infradead.org - Break the more complex patches into smaller ones to ease review effort. - Fix a racing condition in the PV qspinlock code. v7->v8: - Remove one unneeded atomic operation from the slowpath, thus improving
2014 Apr 01
10
[PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
v7->v8: - Remove one unneeded atomic operation from the slowpath, thus improving performance. - Simplify some of the codes and add more comments. - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable unfair lock. - Reduce unfair lock slowpath lock stealing frequency depending on its distance from the queue head. - Add performance data for IvyBridge-EX CPU.
2014 Apr 01
10
[PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
v7->v8: - Remove one unneeded atomic operation from the slowpath, thus improving performance. - Simplify some of the codes and add more comments. - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable unfair lock. - Reduce unfair lock slowpath lock stealing frequency depending on its distance from the queue head. - Add performance data for IvyBridge-EX CPU.
2014 Mar 19
15
[PATCH v7 00/11] qspinlock: a 4-byte queue spinlock with PV support
v6->v7: - Remove an atomic operation from the 2-task contending code - Shorten the names of some macros - Make the queue waiter to attempt to steal lock when unfair lock is enabled. - Remove lock holder kick from the PV code and fix a race condition - Run the unfair lock & PV code on overcommitted KVM guests to collect performance data. v5->v6: - Change the optimized
2014 Mar 19
15
[PATCH v7 00/11] qspinlock: a 4-byte queue spinlock with PV support
v6->v7: - Remove an atomic operation from the 2-task contending code - Shorten the names of some macros - Make the queue waiter to attempt to steal lock when unfair lock is enabled. - Remove lock holder kick from the PV code and fix a race condition - Run the unfair lock & PV code on overcommitted KVM guests to collect performance data. v5->v6: - Change the optimized
2014 Apr 02
17
[PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
N.B. Sorry for the duplicate. This patch series were resent as the original one was rejected by the vger.kernel.org list server due to long header. There is no change in content. v7->v8: - Remove one unneeded atomic operation from the slowpath, thus improving performance. - Simplify some of the codes and add more comments. - Test for X86_FEATURE_HYPERVISOR CPU feature bit
2014 Apr 02
17
[PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
N.B. Sorry for the duplicate. This patch series were resent as the original one was rejected by the vger.kernel.org list server due to long header. There is no change in content. v7->v8: - Remove one unneeded atomic operation from the slowpath, thus improving performance. - Simplify some of the codes and add more comments. - Test for X86_FEATURE_HYPERVISOR CPU feature bit
2014 May 30
19
[PATCH v11 00/16] qspinlock: a 4-byte queue spinlock with PV support
v10->v11: - Use a simple test-and-set unfair lock to simplify the code, but performance may suffer a bit for large guest with many CPUs. - Take out Raghavendra KT's test results as the unfair lock changes may render some of his results invalid. - Add PV support without increasing the size of the core queue node structure. - Other minor changes to address some of the
2014 May 30
19
[PATCH v11 00/16] qspinlock: a 4-byte queue spinlock with PV support
v10->v11: - Use a simple test-and-set unfair lock to simplify the code, but performance may suffer a bit for large guest with many CPUs. - Take out Raghavendra KT's test results as the unfair lock changes may render some of his results invalid. - Add PV support without increasing the size of the core queue node structure. - Other minor changes to address some of the
2014 May 08
2
[PATCH v10 09/19] qspinlock: Prepare for unfair lock support
On Wed, May 07, 2014 at 11:01:37AM -0400, Waiman Long wrote: > If unfair lock is supported, the lock acquisition loop at the end of > the queue_spin_lock_slowpath() function may need to detect the fact > the lock can be stolen. Code are added for the stolen lock detection. > > A new qhead macro is also defined as a shorthand for mcs.locked. NAK, unfair should be a pure
2014 May 08
2
[PATCH v10 09/19] qspinlock: Prepare for unfair lock support
On Wed, May 07, 2014 at 11:01:37AM -0400, Waiman Long wrote: > If unfair lock is supported, the lock acquisition loop at the end of > the queue_spin_lock_slowpath() function may need to detect the fact > the lock can be stolen. Code are added for the stolen lock detection. > > A new qhead macro is also defined as a shorthand for mcs.locked. NAK, unfair should be a pure
2014 Feb 26
22
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5: - Move the optimized 2-task contending code to the generic file to enable more architectures to use it without code duplication. - Address some of the style-related comments by PeterZ. - Allow the use of unfair queue spinlock in a real para-virtualized execution environment. - Add para-virtualization support to the qspinlock code by ensuring that the lock holder and queue
2014 Feb 26
22
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5: - Move the optimized 2-task contending code to the generic file to enable more architectures to use it without code duplication. - Address some of the style-related comments by PeterZ. - Allow the use of unfair queue spinlock in a real para-virtualized execution environment. - Add para-virtualization support to the qspinlock code by ensuring that the lock holder and queue
2014 Feb 27
14
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5: - Move the optimized 2-task contending code to the generic file to enable more architectures to use it without code duplication. - Address some of the style-related comments by PeterZ. - Allow the use of unfair queue spinlock in a real para-virtualized execution environment. - Add para-virtualization support to the qspinlock code by ensuring that the lock holder and queue
2014 Feb 27
14
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5: - Move the optimized 2-task contending code to the generic file to enable more architectures to use it without code duplication. - Address some of the style-related comments by PeterZ. - Allow the use of unfair queue spinlock in a real para-virtualized execution environment. - Add para-virtualization support to the qspinlock code by ensuring that the lock holder and queue
2014 Mar 12
17
[PATCH v6 00/11] qspinlock: a 4-byte queue spinlock with PV support
v5->v6: - Change the optimized 2-task contending code to make it fairer at the expense of a bit of performance. - Add a patch to support unfair queue spinlock for Xen. - Modify the PV qspinlock code to follow what was done in the PV ticketlock. - Add performance data for the unfair lock as well as the PV support code. v4->v5: - Move the optimized 2-task contending code to the
2014 Mar 12
17
[PATCH v6 00/11] qspinlock: a 4-byte queue spinlock with PV support
v5->v6: - Change the optimized 2-task contending code to make it fairer at the expense of a bit of performance. - Add a patch to support unfair queue spinlock for Xen. - Modify the PV qspinlock code to follow what was done in the PV ticketlock. - Add performance data for the unfair lock as well as the PV support code. v4->v5: - Move the optimized 2-task contending code to the
2014 Jun 15
28
[PATCH 00/11] qspinlock with paravirt support
Since Waiman seems incapable of doing simple things; here's my take on the paravirt crap. The first few patches are taken from Waiman's latest series, but the virt support is completely new. Its primary aim is to not mess up the native code. I've not stress tested it, but the virt and paravirt (kvm) cases boot on simple smp guests. I've not done Xen, but the patch should be
2014 Jun 15
28
[PATCH 00/11] qspinlock with paravirt support
Since Waiman seems incapable of doing simple things; here's my take on the paravirt crap. The first few patches are taken from Waiman's latest series, but the virt support is completely new. Its primary aim is to not mess up the native code. I've not stress tested it, but the virt and paravirt (kvm) cases boot on simple smp guests. I've not done Xen, but the patch should be