search for: halt_qnode_stats

Displaying 20 results from an estimated 24 matches for "halt_qnode_stats".

2014 Apr 02
0
[PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN
...uct arch_spinlock *lock, __ticket_t next) } } +#else /* CONFIG_QUEUE_SPINLOCK */ + +#ifdef CONFIG_XEN_DEBUG_FS +static u32 kick_stats; /* CPU kick count */ +static u32 kick_nohalt_stats; /* Kick but not halt count */ +static u32 halt_qhead_stats; /* Queue head halting count */ +static u32 halt_qnode_stats; /* Queue node halting count */ +static u32 wake_kick_stats; /* Wakeup by kicking count */ +static u32 wake_spur_stats; /* Spurious wakeup count */ + +static inline void xen_kick_stats(void) +{ + add_smp(&kick_stats, 1); +} + +static inline void xen_halt_stats(enum pv_lock_stats type) +{ + i...
2015 Jan 20
0
[PATCH v14 11/11] pvqspinlock, x86: Enable PV qspinlock for XEN
...213,6 +216,118 @@ static void xen_unlock_kick(struct arch_spinlock *lock, __ticket_t next) } } +#else /* CONFIG_QUEUE_SPINLOCK */ + +#ifdef CONFIG_XEN_DEBUG_FS +static u32 kick_nohlt_stats; /* Kick but not halt count */ +static u32 halt_qhead_stats; /* Queue head halting count */ +static u32 halt_qnode_stats; /* Queue node halting count */ +static u32 halt_abort_stats; /* Halting abort count */ +static u32 wake_kick_stats; /* Wakeup by kicking count */ +static u32 wake_spur_stats; /* Spurious wakeup count */ +static u64 time_blocked; /* Total blocking time */ + +void xen_lock_stats(int stat_type...
2015 Jan 20
0
[PATCH v14 11/11] pvqspinlock, x86: Enable PV qspinlock for XEN
...213,6 +216,118 @@ static void xen_unlock_kick(struct arch_spinlock *lock, __ticket_t next) } } +#else /* CONFIG_QUEUE_SPINLOCK */ + +#ifdef CONFIG_XEN_DEBUG_FS +static u32 kick_nohlt_stats; /* Kick but not halt count */ +static u32 halt_qhead_stats; /* Queue head halting count */ +static u32 halt_qnode_stats; /* Queue node halting count */ +static u32 halt_abort_stats; /* Halting abort count */ +static u32 wake_kick_stats; /* Wakeup by kicking count */ +static u32 wake_spur_stats; /* Spurious wakeup count */ +static u64 time_blocked; /* Total blocking time */ + +void xen_lock_stats(int stat_type...
2014 May 07
1
[PATCH v10 18/19] pvqspinlock, x86: Enable PV qspinlock PV for KVM
.../* !CONFIG_QUEUE_SPINLOCK */ > + > +#ifdef CONFIG_KVM_DEBUG_FS > +static struct dentry *d_spin_debug; > +static struct dentry *d_kvm_debug; > +static u32 kick_nohlt_stats; /* Kick but not halt count */ > +static u32 halt_qhead_stats; /* Queue head halting count */ > +static u32 halt_qnode_stats; /* Queue node halting count */ > +static u32 halt_abort_stats; /* Halting abort count */ > +static u32 wake_kick_stats; /* Wakeup by kicking count */ > +static u32 wake_spur_stats; /* Spurious wakeup count */ > +static u64 time_blocked; /* Total blocking time */ > + > +static i...
2014 May 07
1
[PATCH v10 18/19] pvqspinlock, x86: Enable PV qspinlock PV for KVM
.../* !CONFIG_QUEUE_SPINLOCK */ > + > +#ifdef CONFIG_KVM_DEBUG_FS > +static struct dentry *d_spin_debug; > +static struct dentry *d_kvm_debug; > +static u32 kick_nohlt_stats; /* Kick but not halt count */ > +static u32 halt_qhead_stats; /* Queue head halting count */ > +static u32 halt_qnode_stats; /* Queue node halting count */ > +static u32 halt_abort_stats; /* Halting abort count */ > +static u32 wake_kick_stats; /* Wakeup by kicking count */ > +static u32 wake_spur_stats; /* Spurious wakeup count */ > +static u64 time_blocked; /* Total blocking time */ > + > +static i...
2014 Oct 29
0
[PATCH v13 10/11] pvqspinlock, x86: Enable PV qspinlock for KVM
...icket_t ticket) } } } +#else /* !CONFIG_QUEUE_SPINLOCK */ + +#ifdef CONFIG_KVM_DEBUG_FS +static struct dentry *d_spin_debug; +static struct dentry *d_kvm_debug; +static u32 kick_nohlt_stats; /* Kick but not halt count */ +static u32 halt_qhead_stats; /* Queue head halting count */ +static u32 halt_qnode_stats; /* Queue node halting count */ +static u32 halt_abort_stats; /* Halting abort count */ +static u32 wake_kick_stats; /* Wakeup by kicking count */ +static u32 wake_spur_stats; /* Spurious wakeup count */ +static u64 time_blocked; /* Total blocking time */ + +static int __init kvm_spinlock_debugfs...
2014 Oct 29
0
[PATCH v13 10/11] pvqspinlock, x86: Enable PV qspinlock for KVM
...icket_t ticket) } } } +#else /* !CONFIG_QUEUE_SPINLOCK */ + +#ifdef CONFIG_KVM_DEBUG_FS +static struct dentry *d_spin_debug; +static struct dentry *d_kvm_debug; +static u32 kick_nohlt_stats; /* Kick but not halt count */ +static u32 halt_qhead_stats; /* Queue head halting count */ +static u32 halt_qnode_stats; /* Queue node halting count */ +static u32 halt_abort_stats; /* Halting abort count */ +static u32 wake_kick_stats; /* Wakeup by kicking count */ +static u32 wake_spur_stats; /* Spurious wakeup count */ +static u64 time_blocked; /* Total blocking time */ + +static int __init kvm_spinlock_debugfs...
2014 May 07
0
[PATCH v10 18/19] pvqspinlock, x86: Enable PV qspinlock PV for KVM
...icket_t ticket) } } } +#else /* !CONFIG_QUEUE_SPINLOCK */ + +#ifdef CONFIG_KVM_DEBUG_FS +static struct dentry *d_spin_debug; +static struct dentry *d_kvm_debug; +static u32 kick_nohlt_stats; /* Kick but not halt count */ +static u32 halt_qhead_stats; /* Queue head halting count */ +static u32 halt_qnode_stats; /* Queue node halting count */ +static u32 halt_abort_stats; /* Halting abort count */ +static u32 wake_kick_stats; /* Wakeup by kicking count */ +static u32 wake_spur_stats; /* Spurious wakeup count */ +static u64 time_blocked; /* Total blocking time */ + +static int __init kvm_spinlock_debugfs...
2015 Jan 20
13
[PATCH v14 00/11] qspinlock: a 4-byte queue spinlock with PV support
v13->v14: - Patches 1 & 2: Add queue_spin_unlock_wait() to accommodate commit 78bff1c86 from Oleg Nesterov. - Fix the system hang problem when using PV qspinlock in an over-committed guest due to a racing condition in the pv_set_head_in_tail() function. - Increase the MAYHALT_THRESHOLD from 10 to 1024. - Change kick_cpu into a regular function pointer instead of a
2015 Jan 20
13
[PATCH v14 00/11] qspinlock: a 4-byte queue spinlock with PV support
v13->v14: - Patches 1 & 2: Add queue_spin_unlock_wait() to accommodate commit 78bff1c86 from Oleg Nesterov. - Fix the system hang problem when using PV qspinlock in an over-committed guest due to a racing condition in the pv_set_head_in_tail() function. - Increase the MAYHALT_THRESHOLD from 10 to 1024. - Change kick_cpu into a regular function pointer instead of a
2014 Oct 16
15
[PATCH v12 00/11] qspinlock: a 4-byte queue spinlock with PV support
v11->v12: - Based on PeterZ's version of the qspinlock patch (https://lkml.org/lkml/2014/6/15/63). - Incorporated many of the review comments from Konrad Wilk and Paolo Bonzini. - The pvqspinlock code is largely from my previous version with PeterZ's way of going from queue tail to head and his idea of using callee saved calls to KVM and XEN codes. v10->v11: - Use a
2014 Oct 16
15
[PATCH v12 00/11] qspinlock: a 4-byte queue spinlock with PV support
v11->v12: - Based on PeterZ's version of the qspinlock patch (https://lkml.org/lkml/2014/6/15/63). - Incorporated many of the review comments from Konrad Wilk and Paolo Bonzini. - The pvqspinlock code is largely from my previous version with PeterZ's way of going from queue tail to head and his idea of using callee saved calls to KVM and XEN codes. v10->v11: - Use a
2014 May 07
32
[PATCH v10 00/19] qspinlock: a 4-byte queue spinlock with PV support
v9->v10: - Make some minor changes to qspinlock.c to accommodate review feedback. - Change author to PeterZ for 2 of the patches. - Include Raghavendra KT's test results in patch 18. 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
2014 May 07
32
[PATCH v10 00/19] qspinlock: a 4-byte queue spinlock with PV support
v9->v10: - Make some minor changes to qspinlock.c to accommodate review feedback. - Change author to PeterZ for 2 of the patches. - Include Raghavendra KT's test results in patch 18. 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
2014 Oct 29
15
[PATCH v13 00/11] qspinlock: a 4-byte queue spinlock with PV support
v12->v13: - Change patch 9 to generate separate versions of the queue_spin_lock_slowpath functions for bare metal and PV guest. This reduces the performance impact of the PV code on bare metal systems. v11->v12: - Based on PeterZ's version of the qspinlock patch (https://lkml.org/lkml/2014/6/15/63). - Incorporated many of the review comments from Konrad Wilk and Paolo
2014 Oct 29
15
[PATCH v13 00/11] qspinlock: a 4-byte queue spinlock with PV support
v12->v13: - Change patch 9 to generate separate versions of the queue_spin_lock_slowpath functions for bare metal and PV guest. This reduces the performance impact of the PV code on bare metal systems. v11->v12: - Based on PeterZ's version of the qspinlock patch (https://lkml.org/lkml/2014/6/15/63). - Incorporated many of the review comments from Konrad Wilk and Paolo
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 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.