Messages in this thread |  | | Date | Wed, 11 Dec 1996 11:42:27 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Memory Swap problem |
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Your patch made my system behave much better. Here's some test code that I hacked up to test it.
#include <stdio.h> #include <malloc.h>
int main(void); int main() { int *p, *q; size_t len; size_t i; len = 13117; /* Not divisible into a page */ for(;;) { fprintf(stdout, "Allocation = %u\r", len); fflush(stdout); if((p = (int *) malloc(len * sizeof(int))) == NULL) { fprintf(stderr, "Memory allocation finally failed at %u words\n", len); len = 13117; continue; } q = p; for(i=0; i<len; i++) *q++ = i; free(p); len += (size_t) ((float)len * 1.3332); } return 0; }
It appears to run "forever" okay. Without your patch, paging was racing so that I couldn't get any CPU time to stop anything. I have a very fast SCSI disk used for swap plus an Adaptec AHA-2940 PCI controller.
Cheers, Dick Johnson -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Richard B. Johnson Project Engineer Analogic Corporation Voice : (508) 977-3000 ext. 3754 Fax : (508) 532-6097 Modem : (508) 977-6870 Ftp : ftp@boneserver.analogic.com Email : rjohnson@analogic.com, johnson@analogic.com Penguin : Linux version 2.1.14 on an i586 machine. Warning : It's hard to remain at the trailing edge of technology. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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