memory

问题 I'm confused because from reading the wiki page it seems like just having a checkValidate and commit system for loads and stores. Is the purpose to solve synchronization problems? Is it a software programming thing build on-top of current hardware, or is it a hardware implementation via an ISA? What's the difference between each (HW/SW) implementation? Thanks. 回答1: Transactional Memory is the concept of using transactions rather than locks to synchronise processes that execute in parallel and

问题 I need to free the bitpointer , because this function is executed multiple times and memory usage is growing for a reason I don't understand and it crashes after reaching 22mb of ram usage.. If I try to delete the bitpointer like this delete []bitpointer or free(bitpointer) I get access violation error. But I don't understand why, because the function shouldn't use the pointer any more and the new red blue green values are set.. void Get_Color(int x,int y,int w,int h,int &red,int &green,int

问题 I need to free the bitpointer , because this function is executed multiple times and memory usage is growing for a reason I don't understand and it crashes after reaching 22mb of ram usage.. If I try to delete the bitpointer like this delete []bitpointer or free(bitpointer) I get access violation error. But I don't understand why, because the function shouldn't use the pointer any more and the new red blue green values are set.. void Get_Color(int x,int y,int w,int h,int &red,int &green,int

问题 I need to free the bitpointer , because this function is executed multiple times and memory usage is growing for a reason I don't understand and it crashes after reaching 22mb of ram usage.. If I try to delete the bitpointer like this delete []bitpointer or free(bitpointer) I get access violation error. But I don't understand why, because the function shouldn't use the pointer any more and the new red blue green values are set.. void Get_Color(int x,int y,int w,int h,int &red,int &green,int

问题 Storage::disk('local') ->append('/newsletter_lists/'.$contact_file_name.'.csv', $contact->email.','.$contact->salutation.','.$contact->lastname.','.$contact->unsubscribelink.','.$contact->bonus ); This is the code in Laravel that is writing to csv file inside a foreach loop (chunk loading from database). But as far as I know the append() method, is opening the file everytime, loads the content in memory, adds the new line and saves the file again, which with a large number of records (65 000)

问题 Using ini_get('memory_limit') will get what is specified in the php.ini file (i presume). But if i run ini_set('memory_limit', 'somethingInsanelyHigh') and then run ini_get(..) again, it will return what i previously set it to. This brings me to believe there's no real way to increase the memory limit and detect if it's actually increased, is there? What does ini_set(..) actually do? Does it just update a variable somewhere or does it actually increase the limit? And if so, how do i know if

问题 Using ini_get('memory_limit') will get what is specified in the php.ini file (i presume). But if i run ini_set('memory_limit', 'somethingInsanelyHigh') and then run ini_get(..) again, it will return what i previously set it to. This brings me to believe there's no real way to increase the memory limit and detect if it's actually increased, is there? What does ini_set(..) actually do? Does it just update a variable somewhere or does it actually increase the limit? And if so, how do i know if

问题 I was doing data wrangling with Rstudio, and while I was doing something with a very large dataset, the process died. I restarted the computer, but ever since Rstudio has not been responsive or slow due to memory limits (currently, it's occupying 8gb of my 16gb RAM). I tried doing all the standard things I found on Stackoverflow. gc() and gc(reset=T) rm(list = ls()) .rs.restartR() Restart my computer. But when I open Rstudio, the memory usage would quickly climb and make the entire thing

问题 I was doing data wrangling with Rstudio, and while I was doing something with a very large dataset, the process died. I restarted the computer, but ever since Rstudio has not been responsive or slow due to memory limits (currently, it's occupying 8gb of my 16gb RAM). I tried doing all the standard things I found on Stackoverflow. gc() and gc(reset=T) rm(list = ls()) .rs.restartR() Restart my computer. But when I open Rstudio, the memory usage would quickly climb and make the entire thing

问题 I was doing data wrangling with Rstudio, and while I was doing something with a very large dataset, the process died. I restarted the computer, but ever since Rstudio has not been responsive or slow due to memory limits (currently, it's occupying 8gb of my 16gb RAM). I tried doing all the standard things I found on Stackoverflow. gc() and gc(reset=T) rm(list = ls()) .rs.restartR() Restart my computer. But when I open Rstudio, the memory usage would quickly climb and make the entire thing