Hello Ondrej...
Sorry, I somehow managed to sent you the wrong version of the little C
program. I wanted to clean it up before sending it and you got a nice
in-between version between the old and new one. :-)
Double-checked now, that's the right one. Sorry.
Have a nice day,
Matthias
--
Dipl.-Inf. (FH) Matthias Dahl | Software Engineer | binary-island.eu
services: custom software [desktop, mobile, web], server administration
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int main(int argc, char** argv)
{
unsigned long chunkSize = 1 << 20; // 1 MiB per \ total mem alloc
unsigned long maxRuns = 8 * (1 << 10); // 2^10 runs / of 8 GiB
void* buffer = NULL;
if(argc == 3)
{
chunkSize = strtoul(argv[1], NULL, 10);
maxRuns = strtoul(argv[2], NULL, 10);
}
unsigned long maxMemAllocInBytes = chunkSize * maxRuns;
unsigned long maxMemAllocInMB = maxMemAllocInBytes / (1 << 20);
unsigned long curMemAllocInBytes = 0;
while(curMemAllocInBytes < maxMemAllocInBytes)
{
buffer = malloc(chunkSize);
memset(buffer, 0, chunkSize);
curMemAllocInBytes += chunkSize;
printf("%lu MB / %lu MiB allocated (%lu bytes).\n", (curMemAllocInBytes / (1 << 20)), maxMemAllocInMB, curMemAllocInBytes);
usleep(500);
}
return 0;
}
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