Why is there a for_each_sched_entity macro in task_tick_fair function called on system tick? According to me, only the run time characteristics of the current task should be updated. Why does it call entity_tick for the entire hierarchy of the current process?
Calling task_tick_fair in CFS algorithm
159 Views Asked by Lucifer Poltergeist At
1
There are 1 best solutions below
Related Questions in LINUX
- How do I recursively find and replace only in files named index.php on Linux webserver?
- passing text with \n as one argument in shell
- kernel module does not print packet info
- How to send ESC/POS commands to thermal printer in Linux
- (x64 Nasm) Writeline function on Linux
- How do I set the Hive user to something different than the Spark user from within a Spark program?
- Default priority of thread with SCHED_FIFO
- Calling a python function with options from shell script
- How to split a directory into parts without compressing or archiving?
- Cross compile simple standard C program on Linux for Mac
- How to offload NAPI poll function to workqueue
- python netifaces - How to get currently used network interface
- Unexpected output from function
- mingw-64 conflicting declarations when cross-compiling
- Different behavior of async with Visual Studio 2013(Windows8.1) and GCC 4.9(Ubuntu14.10)
Related Questions in LINUX-KERNEL
- kernel module does not print packet info
- android linux kernel communicate with user space about NETLINK_USER
- How to offload NAPI poll function to workqueue
- Why Device Tree Structure (DTS) file is needed both in bootloader and kernel source code?
- Bootloader in Assembly with Linux kernel
- pktgen not sending packets more than 1kb big
- Use static analysis tools to check null pointers and memory leaks in Linux device drivers
- How to build Linux kernel to support SO_ATTACH_BPF socket option?
- How do I know the last sched time of a process
- linux kernel compile error....udevd[63]: error getting socket
- Process in background mode trying to read from stdin
- board firmware update through uefi capsule feature from Linux
- spin_lock before writing status register
- Kernel module configuration locked built in?
- Install Subversion 1.7 on Debian jessie
Related Questions in SCHEDULED-TASKS
- Error while Running a .exe file using coldfusion schedule task
- Repetition Task C# Server side
- scheduling and editing an event to occur at a specific time android
- Looking to run automated jobs in .NET application
- scheduling with cronjob to run the php file for only one time
- Scheduling java process for a specific time interval with a given delay
- Why can't I create a scheduled task with PHP exec()?
- Scheduling multiple instance of a single java process
- C# Console App Exit Code with Task Scheduler
- Php schedule run a function after 10 minutes
- .BAT file not running in task scheduler
- Running a python background script (Windows 7) to keep files updated
- Java: scheduling task execution once a month (or two)
- Java Schedule a task for single execution
- Automate MySQL backup @localhost with mysqldump in Windows 8
Related Questions in SCHEDULING
- How do I know the last sched time of a process
- rm scheduling - calculation
- Scheduling multiple instance of a single java process
- How to Schedule a job run at multiple time intervals
- What's the purpose of `on_rq` field in `task_struct`?
- How to schedule job in Jenkins at particular timings
- Run code at a certain time
- AJAX disabledDates Fullcalendar Machines/Users
- Cron like scheduling using Apache Oozie
- SQL Server grouping interval
- Why is response time important in CPU scheduling?
- What are the differences between "recursion", "a non-terminating procedure that happens to refer to itself", and "repeated scheduling"?
- Thread creation using pthread_create with SCHED_RR scheduling fails
- cpu scheduling SRTF
- Scheduled scaling of Azure VMSS (via Runbook)
Related Questions in CFS
- Compile 32 bit application on 64 bit ubuntu
- hardware implementation of algorithms using in os scheduler
- What's the difference between interactive and non-interactive thread? And performance in different CPU Scheduler?
- cfs collection showing error in react.component
- Why vruntime of a running process is decreased in CFS scheduler in linux?
- How vruntime of a newly created process initialised in CFS scheduler linux ?
- docker-compose spec says cpus option is deprecated but docker run says use --cpus
- difference between update_rq_clock and update_rq_clock_task
- Calling task_tick_fair in CFS algorithm
- disabling preemption while executing schedule() function
- Use of signal_pending_state function to change task's state to TASK_RUNNING
- the running time is small than TICK_time ,why it seized by barad_agent?
- Completely Fair Scheduler (CFS): vruntime of long running processes
- Linux CFS scheduling of cron-job vs console
- How to get delta percentage from /proc/schedstat
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
CFS supports hierarchies of tasks, where entire subtrees can have their CPU usage accounting and quota aggregated. This features is used to implement cpu cgroups and CFS group scheduling. A interior node of the task tree can be thought of a as a virtual task than represents the CPU usage of its subtree.