gwoho@nntp-server.caltech.edu (g liu) (06/07/91)
a program like: for (;;) if (malloc(1000))puts("a");
seems to me only to be able to allocate about 6m on this 8m 386
sysv at&t unix machine. there must be about 24m of swap.
why is this?
how do i allocate more memory that that? is it a ulimit problem?
gwoho liu.cpcahil@virtech.uucp (Conor P. Cahill) (06/07/91)
gwoho@nntp-server.caltech.edu (g liu) writes: >a program like: for (;;) if (malloc(1000))puts("a"); >seems to me only to be able to allocate about 6m on this 8m 386 >sysv at&t unix machine. there must be about 24m of swap. >why is this? This is because the maximum program size is set to 6MB. The tunable parameter MAXUMEM specifies how many 4K pages a programs virtual space is allowed to take up. -- Conor P. Cahill (703)430-9247 Virtual Technologies, Inc. uunet!virtech!cpcahil 46030 Manekin Plaza, Suite 160 Sterling, VA 22170
gwyn@smoke.brl.mil (Doug Gwyn) (06/08/91)
In article <1991Jun6.215038.20384@nntp-server.caltech.edu> gwoho@nntp-server.caltech.edu (g liu) writes: >is it a ulimit problem? Not quite, because ulimit applies to file size, not process size. Most likely there is a process size limit that you're bumping into. Note that it is unreasonable to try to make a process as large as the entire swap space.