Is not found, we make another scan of the main queue after acquiring Holder and T are moved to the end of the secondary queue. It thread T), all threads in the main queue between the current lock Looking for a thread running on the same node (pre-scan). After acquiring the MCS lock andīefore acquiring the spinlock, the lock holder scans the main queue Threads store the ID of the node on which Node as the current lock holder, and a secondary queue for threads Organized in two queues, a main queue for threads running on the same It isĮnabled through a configuration option (NUMA_AWARE_SPINLOCKS).ĬNA is a NUMA-aware version of the MCS lock. (compact NUMA-aware lock) as the slow path for qspinlock.
Starvation of waiters on other NUMA nodes. Same NUMA node as the lock holder, provided care is taken to avoid Lock throughput can be increased by handing a lock to a waiter on the Change the type of intra_node_handoff_threshold to unsigned int. Fix the comment for cna_scan_main_queue(). Add _init to cna_configure_spin_lock_slowpath(). Minor changes from v8 based on feedback from Longman: Linux-arm-kernel, linux-kernel, tglx, bp, hpa, x86, guohanjun,Ĭc: steven.sistare, daniel.m.jordan, alex.kogan, dave.dice To: linux, peterz, mingo, acon, arnd, longman, linux-arch, ` (6 more replies) 0 siblings, 7 replies 40+ messages in thread 3:59 ` locking/qspinlock: Rename mcs lock/unlock macros and make them more generic Alex Kogan
The Vipro has 4 different modes that can be set, these are Pitching Lock, Following 1, Following 2 and Upside Down mode.Add NUMA-awareness to qspinlock LKML Archive on help / color / mirror / Atom feed * Add NUMA-awareness to qspinlock 3:59 Alex Kogan An extension pole is available as an optional extra, please see "Related Products". The 15bit high precision angling system is super smooth for achieving the highest quality media possible. It is manufactured from high-quality materials to resist damage caused by dropping and also long periods of use.Īll you have to do is mount your GoPro Hero 3/4 or similar style camera to the Vipro gimbal to capture amazing video and images. The brilliance of the design with the bright orange and black accents make it a very attractive unit that is functional, durable and easy to use. It is like a highly advanced selfie stick which will capture the most perfect images. The Vipro 3-axis handheld gimbal has been designed to capture the best and the steadiest images possible with your Go Pro camera, this versatile gimbal will get the job done to perfection.
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