2024 Struct tvec

Struct tvec_base

Author: omlq

August undefined, 2024

Web- return ((struct tvec_base *)((unsigned long)base & ~TBASE_DEFERRABLE_FLAG)); + return ((unsigned int)(unsigned long)base & TIMER_IRQSAFE);}-static inline void … the base pointer is a struct like this. struct tvec_base { spinlock_t lock; struct timer_list *running_timer; unsigned long timer_jiffies; unsigned long next_timer; unsigned long active_timers; struct tvec_root tv1; struct tvec tv2; struct tvec tv3; struct tvec tv4; struct tvec tv5; } ____cacheline_aligned;//??why such a name __cacheline ...

[RFC] [PATCH] cache __next_timer_interrupt result

Web17 rows · It indeed has embedded timer_list, and it's size falls into kmalloc-512 slab. timer_list offset is 0x58, looking back at "kmem" output we see that the base address for … WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed From: tip-bot for Thomas Gleixner To: [email protected] Cc: [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], … mousebell body preset

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Web1 /* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_TIMER_H 3#define _LINUX_TIMER_H 4 5#include 6#include 7#include 8#include 9#include 10 11struct tvec_base; 12 13struct timer_list { 14 /* 15 * All fields that change during normal runtime … WebLinux中断处理驱动程序编写中断处理是操作系统必须具备的上要功能之一，下面我们一起来探讨一下Linux中的中断处理。 1. 什么是中断中断就是CPU正常运行期间，由于内、外部事件引起的CPU暂时停止正在运行的程序，去执行该内部事件或外部事件的引起的服务中 Webstructtvec_base boot_tvec_bases; EXPORT_SYMBOL(boot_tvec_bases); staticDEFINE_PER_CPU(structtvec_base *,tvec_bases)=&boot_tvec_bases; * Note that all tvec_bases are 2 byte aligned and lower bit of * base in timer_list is guaranteed to be zero. Use the LSB for * the new flag to indicate whether the timer is deferrable mouse being eaten

0013241: Kernel panics: Bad RIP value and unable to handle

kernel/timer.c - kernel/msm - Git at Google

WebApr 12, 2024 · 进入循环等待事件. int event_base_dispatch(struct event_base *base); //传入参数为由event_base_new函数返回的指向event_base结构的指针. 调用该函数，程序将会一直运行，直到没有需要检测的事件了，或者被结束循环的API终止。. 使用libevent库的步骤：. 1.创建地基——event_base_new ... Web- tvec_base_t *base = &per_cpu(tvec_bases, cpu); + tvec_base_t *base = per_cpu(tvec_bases, cpu); unsigned long flags; BUG_ON(timer_pending(timer) !timer … mouse behavioursWebJul 12, 2012 · Base class of struct construct in C#. http://msdn.microsoft.com/en-us/library/ah19swz4 (v=VS.71).aspx. As per the above link….. “Structs, however, inherit … mouse behind the fridge

"" - Struct tvec_base

Struct tvec_base

kernel/timer.c - kernel/msm - Git at Google

Webkernel/timer.c defines a (per-cpu) pointer to tvec_base_t, but initializes it using { &a_tvec_base_t }, which sparse warns about; change this to just &a_tvec_base_t. Signed … WebJul 13, 2024 · Using g++ 9.3.0 on Ubuntu 20.04, a "std::vector tVec;" occupies 24 bytes, regardless of the sizeof(T) and regardless of the number of elements (i.e. tVec.size()). [note: some vector implementations differ.] The implication is that the elements of tVec reside in heap, and std::vector takes care of the pointers and vector size growth.

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WebThe material number i must be in the range 1-50. create keyword. begin f f. Set the location of the first node of the cable. If the first node is inside an excavation, it will be moded to … WebThe documentation for this struct was generated from the following files: type_mat.hpp; type_vec3.hpp; rtabmap Author(s): Mathieu Labbe autogenerated on Mon Dec 14 2024 …

WebAug 28, 2010 · Originally Posted by crabboy. In C, static means that the function is only visible within the same source file. inline is a suggestion to the compiler to replace the function call with the code within the function. This is done to reduce the overhead of a function call. Pushing the parameters on the stack then a jump. Webstruct tvec_base *base First we cast base to unsigned long (unsigned long)base Then we perform the bit operation & on (unsigned long)base & 0x1 Then we cast our result to …

WebJul 11, 2006 · The x86_64 system triggering the BUG() in cascade() has two cpus, and therefore two tvec_base_t structures: crash> timer grep TVEC TVEC_BASES[0]: 10001063be0 TVEC_BASES[1]: 1024009fbe0 crash> While running on cpu 1, run_timer_softirq() is kicked off: crash> bt PID: 16462 TASK: 1016d58a030 CPU: 1 … Web> Regardless of the previous CPU a timer was on, add_timer_on() > currently simply sets timer->flags to the new CPU. As the caller must > be seeing the timer as idle, this is locally fine, but the timer > leaving the old base while unlocked can lead to race conditions as > follows. nice detective work. This has been there forever.

Web//timer_list-4.15之前版本 struct timer_list {struct list_head entry //定时器列表 unsigned long expires; //设置定时器到期时间，用jiffies作为基准值 struct tvec_base * base //管理检测时间 void (* function)(unsigned long); //类似中断服务函数，设置定时器到时后处理的函数 unsigned long data; //中断服务函数的参数 }

WebSep 15, 2024 · A structure is a generalization of the user-defined type (UDT) supported by previous versions of Visual Basic. In addition to fields, structures can expose properties, … heart rate too high during workoutWebtypedef struct tvec_t_base_s tvec_base_t; -static DEFINE_PER_CPU(tvec_base_t, tvec_bases); +static DEFINE_PER_CPU(tvec_base_t *, tvec_bases); +static tvec_base_t boot_tvec_bases; static inline void set_running_timer(tvec_base_t *base, struct timer_list *timer) @@ -157,7 +158,7 @@ EXPORT_SYMBOL(__init_timer_base); heart rate taken on your wristWebMay 6, 2024 · These are prefixed by the lines: + 1 - base: kernel virtual address of the timer wheel + data structure (struct tvec_base) for this cpu. + 2 - running timer: kernel virtual … heart rate too high exerciseWebMar 27, 2007 · It uses last bit in 'base' pointer of timer_list structure to store this deferrable timer flag. __next_timer_interrupt () function skips over these deferrable timers when CPU looks for next timer event for which it has to wake up. This is exported by a new interface init_timer_deferrable () that can be called in place of regular init_timer (). mousebell presetWebstruct tvec_base { spinlock_t lock; struct timer_list *running_timer; unsigned long timer_jiffies; unsigned long next_timer; struct tvec_root tv1; struct tvec tv2; struct tvec tv3; struct tvec tv4; struct tvec tv5; }; static inline void timer_set_base ( struct timer_list *timer, struct tvec_base *new_base) { timer-> base = new_base; } heart rate to calories calculatorWebYes. A Vec is the owned variant of a & [T]. & [T] is a reference to a set of T s laid out sequentially in memory (a.k.a. a slice ). It represents a pointer to the beginning of the … mouse belmicroWebEach time a cpu goes to sleep on a NOHZ=y system the timer wheel is searched for the next timer interrupt. It can take quite a few cycles to find the next pending timer. This patch adds a field to tvec_base that caches the result of __next_timer_interrupt. The hit ratio is around 80% on my thinkpad under normal use, on a server I've seen hit ratios from 5% to 95% … mouse bell