64 bit large mallocs

by

malloc tries to allocate a contiguous memory range, and this will initially be in real memory simply due to how swap memory works (at least as far as I remember). It could easily be that your OS sometimes can’t find a contiguous block of 10gb of memory and still leave all the processes that require real memory in RAM at the same time (at which point your malloc will fail).

Do you actually require 10gb of contiguous memory, or would you be able to wrap a storage class/struct around several smaller blocks and use your memory in chunks instead? This relaxes the huge contiguous requirement and should also allow your program to use the swap file for less used chunks.

More Related Contents:

  1. The application was unable to start correctly (0xc000007b)
  2. How much memory can a 32 bit process access on a 64 bit operating system?
  3. Set Windows process (or user) memory limit
  4. Detect whether current Windows version is 32 bit or 64 bit
  5. Does Windows clear memory pages?
  6. Drawbacks of using /LARGEADDRESSAWARE for 32-bit Windows executables?
  7. MSOnline can’t be imported on PowerShell (Connect-MsolService error)
  8. Unexpected page handling (also, VirtualLock = no op?)
  9. What is the range of a Windows HANDLE on a 64 bits application?
  10. How to install Kafka on Windows?
  11. How do I escape ampersands in batch files?
  12. Why does %date% produce a different result in batch file executed as scheduled task?
  13. How to enumerate process’ handles?
  14. How to correct variable overwriting misbehavior when parsing output?
  15. Node.js/Windows error: ENOENT, stat ‘C:\Users\RT\AppData\Roaming\npm’
  16. How to run vbs as administrator from vbs?
  17. Calculate time difference in Windows batch file
  18. How do I make my GUI behave well when Windows font scaling is greater than 100%
  19. How to set the PATH environment variable in Jenkins configuration on Windows?
  20. How to use clang with mingw-w64 headers on windows
  21. How to list all folder with size via batch file
  22. How to wait for a process to terminate to execute another process in batch file
  23. Concatenate text files with Windows command line, dropping leading lines
  24. Cannot read unicode .csv into R
  25. How to create a robust, minimal installer for Windows? [closed]
  26. What are SO_SNDBUF and SO_RCVBUF
  27. build a .exe for Windows from a python 3 script importing theano with pyinstaller
  28. Registry vs. INI file for storing user configurable application settings [closed]
  29. what is a loader lock?
  30. Bypassing elevation when launching a new process

Leave a Comment