search for: ticketspinlock

..._label_ratelimit.h | 34 +++ include/linux/perf_event.h | 1 + include/uapi/linux/kvm_para.h | 1 + kernel/jump_label.c | 1 + 16 files changed, 569 insertions(+), 380 deletions(-) create mode 100644 include/linux/jump_label_ratelimit.h --- [1]. V11 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/7/22/29 [2]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [3]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [4]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 --...

..._label_ratelimit.h | 34 +++ include/linux/perf_event.h | 1 + include/uapi/linux/kvm_para.h | 1 + kernel/jump_label.c | 1 + 16 files changed, 569 insertions(+), 380 deletions(-) create mode 100644 include/linux/jump_label_ratelimit.h --- [1]. V11 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/7/22/29 [2]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [3]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [4]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 --...

..._label_ratelimit.h | 34 +++ include/linux/perf_event.h | 1 + include/uapi/linux/kvm_para.h | 1 + kernel/jump_label.c | 1 + 16 files changed, 569 insertions(+), 380 deletions(-) create mode 100644 include/linux/jump_label_ratelimit.h --- [1]. V11 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/7/22/29 [2]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [3]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [4]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 --...

...ck holder will check if the new queue head has been halted. If so, it will set the slowpath flag for the halted queue head in the lock so as to wake it up at unlock time. This should eliminate your concern of dong twice as many VMEXIT in an overcommitted scenario. BTW, I did some qspinlock vs. ticketspinlock benchmarks using AIM7 high_systime workload on a 4-socket IvyBridge-EX system (60 cores, 120 threads) with some interesting results. In term of the performance benefit of this patch, I ran the high_systime workload (which does a lot of fork() and exit()) at various load levels (500, 1000, 1500 a...

...ck holder will check if the new queue head has been halted. If so, it will set the slowpath flag for the halted queue head in the lock so as to wake it up at unlock time. This should eliminate your concern of dong twice as many VMEXIT in an overcommitted scenario. BTW, I did some qspinlock vs. ticketspinlock benchmarks using AIM7 high_systime workload on a 4-socket IvyBridge-EX system (60 cores, 120 threads) with some interesting results. In term of the performance benefit of this patch, I ran the high_systime workload (which does a lot of fork() and exit()) at various load levels (500, 1000, 1500 a...

...t to enable debug information for KVM Guests kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor Raghavendra K T (2): x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi --- [1]. V11 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/7/22/29 [2]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [3]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [4]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 arc...

...t to enable debug information for KVM Guests kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor Raghavendra K T (2): x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi --- [1]. V11 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/7/22/29 [2]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [3]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [4]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 arc...

...t to enable debug information for KVM Guests kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor Raghavendra K T (2): x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi --- [1]. V11 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/7/22/29 [2]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [3]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [4]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 arc...

...T_MP_STATE ioctl to aid migration Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. V8 PV Ticketspinlock for Xen/KVM link: [1] https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hypercalls.txt | 13 ++ arch/ia64/include/asm/kvm_host.h | 5 + arch/powerpc/include/asm/kvm_host.h | 5 + arch/s390/include/asm/kvm_host.h...

...T_MP_STATE ioctl to aid migration Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. V8 PV Ticketspinlock for Xen/KVM link: [1] https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hypercalls.txt | 13 ++ arch/ia64/include/asm/kvm_host.h | 5 + arch/powerpc/include/asm/kvm_host.h | 5 + arch/s390/include/asm/kvm_host.h...

...T_MP_STATE ioctl to aid migration Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. V8 PV Ticketspinlock for Xen/KVM link: [1] https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hypercalls.txt | 13 ++ arch/ia64/include/asm/kvm_host.h | 5 + arch/powerpc/include/asm/kvm_host.h | 5 + arch/s390/include/asm/kvm_host.h...

...hypervisor: Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock kvm hypervisor: Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. [1]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [2]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [3]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hyperca...

...hypervisor: Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock kvm hypervisor: Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. [1]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [2]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [3]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hyperca...

...hypervisor: Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock kvm hypervisor: Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. [1]. V10 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/24/252 [2]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [3]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hyperca...

...STATE ioctl to aid migration Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. [1]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [2]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hypercalls.txt | 13 ++ arch/ia64/include/asm/kvm_host.h | 5 + arch/powerpc...

...STATE ioctl to aid migration Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. [1]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [2]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hypercalls.txt | 13 ++ arch/ia64/include/asm/kvm_host.h | 5 + arch/powerpc...

...STATE ioctl to aid migration Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock Add directed yield in vcpu block path --- Link in V8 has links to previous patch series and also whole history. [1]. V9 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2013/6/1/168 [2]. V8 PV Ticketspinlock for Xen/KVM link: https://lkml.org/lkml/2012/5/2/119 Documentation/virtual/kvm/cpuid.txt | 4 + Documentation/virtual/kvm/hypercalls.txt | 13 ++ arch/ia64/include/asm/kvm_host.h | 5 + arch/powerpc...

Hi Waiman, As promised; here is the paravirt stuff I did during the trip to BOS last week. All the !paravirt patches are more or less the same as before (the only real change is the copyright lines in the first patch). The paravirt stuff is 'simple' and KVM only -- the Xen code was a little more convoluted and I've no real way to test that but it should be stright fwd to make work.

Hi Waiman, As promised; here is the paravirt stuff I did during the trip to BOS last week. All the !paravirt patches are more or less the same as before (the only real change is the copyright lines in the first patch). The paravirt stuff is 'simple' and KVM only -- the Xen code was a little more convoluted and I've no real way to test that but it should be stright fwd to make work.