I worked on Linux kernel to implement Symmetric Multi Processing support for one ARM SoC. When Kernel was running as Uniprocessor, the BogoMIPS value was 1171. But when I turned on SMP support in Linux kernel, BogoMIPS value decreased drastically to 17. So how this value is calculated and what are the factors affecting it?
How BogoMIPS is calculated on SMP Linux Systems?
275 views Asked by Darshan Prajapati At
0
There are 0 answers
Related Questions in LINUX
- Is there some way to use printf to print a horizontal list of decrementing hex digits in NASM assembly on Linux
- Why does Hugo generate different taxonomy-related HTML on different OS's?
- Writes in io_uring do not advance the file offset
- Why `set -o pipefail` gives different output even though the pipe is not failing
- what really controls the permissions: UID or eUID?
- Compiling eBPF program in Docker fails due to missing '__u64' type
- Docker container unable to make HTTPS requests to external API
- Whow to use callback_query_handler in Python 3.10
- Create kea runtime directory at startup in Yocto image
- Problem on CPU scheduling algorithms in OS
- How to copy files into the singularity sandbox?
- Android kernel error: undefined reference to `get_hw_version_platform'
- Is there a need for BPF Linux namespace?
- Error when trying to execute a binary compiled in a Kali Linux machine on an Ubuntu system
- Issue with launching application after updating ElectronJs to version 28.0.0 on Windows and Linux
Related Questions in LINUX-KERNEL
- Android kernel error: undefined reference to `get_hw_version_platform'
- Is there a need for BPF Linux namespace?
- Facing fatal errors while running "yum update" command on CentOS 7/Cloudlinux 7
- crash utility itself crashes while decoding kdump generated from null pointer dereference in kernel module
- How to compile the Linux kernel with -O0 for more detailed debug?
- Linux support for parallel Pixel data Image sensor
- Can't upgrade to newest version of linux-image-6.5.0-26-generic
- How to protect a page so that it cannot be write in mips arch?
- How to extract the .img file into normal kernel source file in the linux?
- Storage size of struct hash_desc desc; isn't known
- How can I intercept failed file openning calls?
- struct nameidata-Linux Kernel Module
- How to modify a 'struct msghdr' in Linux Kernel Module?
- How to allocate 500MB+ physically contiguous memory in a Linux kernel module and copy data to that memory from a userspace process?
- Hyper Threading: nosmt in grub configuration
Related Questions in ARM
- Jiobook flashing
- How to flush denormal numbers to zero for apple silicon?
- How to exploit Unified Memory in OpenCL with CL_MEM_ALLOC_HOST_PTR flag?
- ARM Assembly code is not executing in Vitis IDE
- Which version of ARM does the M1 chip run on?
- Vector by Scalar Division with -ffast-math
- Why veneer code generated by gcc for cortex-m0 seems 8-byte aligned?
- Getting almost random time stamp counter on ARM
- Portenta H7 Baremetal Development and a Little Guidance on Embedded System Learning Roadmap
- STM32 RTC3 Mixed Mode: Writing TR resets SSR
- Implementing Quick Sort Algorithm in Visual2 with armv7
- How can I create an Inline assembly command with a multi-variable register offset?
- Inquiry: ARM Compatibility for Puppeteer
- Confusion with thumb instructions while compiling recipe for cortexm4 CPU
- Difficulty understanding virtual LPIs in GICv3
Related Questions in SMP
- Should ISR be re-entrant if I provide the same ISR to multiple interrupt lines?
- How to start secondary risc-v core in Renode emulator?
- How is ARM PPI is triggered and handled by an SMP ARM system?
- What is the difference between processor cores and SMP cores?
- Why atomic_thread_fence need atomic operation to work correctly
- Why Linux distributes threads among NUMA nodes almost equally?
- Linux softirq and SMP
- Send BLE raw packet through serial port
- why does read barrier can causes all effects prior to storage from another cpu be perceptible?
- "SMP is not supported on this platform"
- Can printf() be made SMP safe?
- Is memory reordering equivalent to instruction reordering?
- rpi-benchmark seems to have crashed my system: SMP : failed to stop secondary CPUs after running
- How to invalidate cache on mmap'ed shared memory (multi processor machine)
- for_each_possible_cpu macro in vmalloc_init() function, does the code run in only one cpu? or in every cpu?
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?
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)