logo
down
shadow

DMA transfer taking more time than CPU transfer


DMA transfer taking more time than CPU transfer

By : Ho Mandy
Date : October 17 2020, 06:10 AM
Hope that helps you try to proof something what is not the true. DMA memory to memory transfer will be always slower than direct CPU one. DMA was not intended to be faster than the CPU. it's there is to provide the transfer w without the CPU activity in the background. the core has always priority over the DMA.
MEM to MEM DMA transfer will be always slower than the CPU one
code :


Share : facebook icon twitter icon
How to transfer large file from local to remote box with auto-resume and transfer only what has changed?

How to transfer large file from local to remote box with auto-resume and transfer only what has changed?


By : Veronique James
Date : March 29 2020, 07:55 AM
around this issue rsync does handle relatively small changes and partial uploads in a file efficiently. There has been significant effort in the rsync algorithm towards this direction.
The problem is that WAR files are "extended" JAR files, which are essentially ZIP arhives and therefore compressed.
BASH - transfer large files and process after transfer limiting the number of processes

BASH - transfer large files and process after transfer limiting the number of processes


By : steecee
Date : March 29 2020, 07:55 AM
With these it helps You can use GNU Parallel for that. Just echo the commands you want run into parallel and it will run one job per CPU core your machine has.
code :
for f in ... ; do
   scp ...
   echo ./process "$f"
done | parallel
for f in ... ; do
   scp ...
   printf "%s\0" "$f"
done | parallel -0 -j4 ./process 
Why is the Geostats Table empty when I use Google Ads Transfer (BigQuery Data Transfer Service)?

Why is the Geostats Table empty when I use Google Ads Transfer (BigQuery Data Transfer Service)?


By : user2986415
Date : March 29 2020, 07:55 AM
wish help you to fix your issue to everyon ewho has tried to help me with my issue.
I have found that the reason was that currently, I was only running UAC and there are only few reports which can be downloaded for UAC. (Check here for the available report types)
Do I need to transfer ownership *back* to the transfer queue on next transfer?

Do I need to transfer ownership *back* to the transfer queue on next transfer?


By : user3705138
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , You can use a Resource on any queue family (without a transfer) as long as you do not mind that the data becomes undefined. You still need a Semaphore to make sure there is no memory hazard.
Ye olde spec:
code :
submit(copy, release ownership from tranfer, semaphore signal)
submit(semaphore wait, acquire ownership to graphics, draw)
submit(draw)
submit(draw)
submit(draw)
submit(draw)
submit(draw, semaphore signal)
submit(semaphore wait, copy, release ownership from tranfer, semaphore signal)
submit(semaphore wait, acquire ownership to graphics, draw)
submit(draw)
submit(draw)
etc

Ant script to transfer multiple files using WebSphere MQ File Transfer Edition (MQ FTE)

Ant script to transfer multiple files using WebSphere MQ File Transfer Edition (MQ FTE)


By : shaktimaan
Date : March 29 2020, 07:55 AM
it helps some times
How can I modify the script so that it can support multiple files?
Related Posts Related Posts :
  • How do I know it is OK to free the pointer after passed it to a function?
  • How to get the incoming ssh/telnets clients local IP address from a shell script or C
  • C: What does if(a<b<c) do?
  • What does this mean exactly in C?
  • What is the best way to achieve sscanf-like functionality in Perl?
  • How to create threads and sort correctly in a odd-even sorting program?
  • What's the single best reference on the topic of (POSIX) signals?
  • Avoid Overflow when Calculating π by Evaluating a Series Using 16-bit Arithmetic?
  • How to handle data or char -1 when reading from file, since EOF is also -1
  • Compare every 1kb of contents of two files instead of character by character
  • Understanding functions in stm8s disassembly?
  • Recursive and no-recursive get different answer
  • Can anyone explain the following output of the code?
  • How to resync time from NTP server in esp-idf?
  • Output for the following C code is confusing me
  • Determine if window is visible with High CPU
  • Writing a file by taking input from user only saves value for "x" only
  • How should I fill an array of ints from a file using command line args? The size of the file and the no. of elements may
  • Segmentation Fault While Reading File in C
  • Fill an array at index n with m times data without bit-fields
  • Why don't the values I type in the terminal match the values I've already stored in the array?
  • MPLABX XC16 unable to resolve built-in identifier __builtin_dmaoffset
  • How call and compile function from elf to my binary?
  • Modifying non-const char array that is referred to by const char array
  • Does anyone see any mistakes here? I am trying to get a message via a pipe, from my parent to child
  • Memory Leak - Singly linked list in C
  • Trouble with translation of typedef between C to D
  • Why does SIGINT stop sleep more than one time?
  • How to pause a timer created with CreateTimerQueueTimer
  • How can I read data from file ? I can't fix it
  • Scanf in visual studio not accepting multiple cases of characters
  • How can I determine if a char* is a windows line ending?
  • I am trying to store value in long long int type but giving wrong return
  • How to manage different kinds of data in a linked list?
  • uint8_t not rollover to 0 after reaching 255 not working properly
  • Why do these two execvp produce different results?
  • Pass uintmax_t or size_t to custom printf conversion specifier
  • Why does free() leaves stuff in memory?
  • Why pointers can't be used to index arrays?
  • memory allocation eror in C
  • C custom datatypes mapped to C datatypes grouped under a single struct
  • pipe() data is not transferred to child process
  • Getting a core dump from a simple C program
  • Fatal error on makefile, need to understand the problem
  • How can I add a delay of 90 minutes when a port has gone from 0 to 1?
  • To use strcpy or not
  • the usage of strtok() in c shows warnings and returns segmentation fault(core dumped)
  • Trouble allocating array of structs
  • Only first char of user input used in array
  • Why does "int x = 5; printf("%d %d %d", x==5, x=10, x==5);" in C print "0 10 0"?
  • How to scan specific string format in C?
  • sscanf skipping the final value when reading multiple values from a line
  • How can I access full memory space in FreeDOS with C application
  • Semantics of sem_getvalue() in POSIX
  • What does the [x,y] symbol mean in a multidimensional array access?
  • compilation error: cast from pointer to integer of different size
  • why am i getting compilation error "error: conflicting types for ‘ptr’ " for the following code? static int va
  • Why does getw return -1 when trying to read a character?
  • Why C program in whch two functions call each other recursively gives segmentation fault on linux?
  • ssize_t is undefined
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk