RE: [bug #18396] stack size setrlimit call interacts badly with Solaris/x86 kernel bug

[Martin Dorey]

> Using heap, which requires a system call to get more memory

(It doesn't affect the main point of Paul's reply but just for academic
interest) no it doesn't:

address@hidden:~/playpen$ cat ten-thousand-mallocs.c 
#include <stdlib.h>

int main() {
  for (int ii = 0; ii != 10 * 1000; ++ ii) {
    free(malloc(1));
  }
}
address@hidden:~/playpen$ g++ ten-thousand-mallocs.c 
address@hidden:~/playpen$ strace ./a.out 2>&1 | wc -l
152
address@hidden:~/playpen$

Even in less contrived applications, brk isn't called anything like as
often as malloc.
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Martin's Outlook, BlueArc Engineering