-----Original Message----- From: Jeff Trawick [mailto:[EMAIL PROTECTED]
[SNIP]
Mathihalli, Madhusudan wrote:
Hi,
If the "-c" option is given a arbitrarily huge value,
ab dumps core.
(Try: ab -c 2147483647 http://foo.com/)
why does it dump core? malloc says sure I can give you 2GB but then we segfault trying to access the pages? or something else?
Here's the stack trace:
(gdb) r -c 2147483647 http://foo.com/ [...]
Breakpoint 1, test () at ab.c:1606 1606 con = calloc(concurrency * sizeof(struct connection), 1); (gdb) p con $1 = (struct connection *) 0x0 (gdb) c
Program received signal SIGSEGV, Segmentation fault (si_code: 2). 0x40000000000a14a0:1 in test () at ab.c:1686 1686 con[i].socknum = i; (gdb) bt #0 0x40000000000a14a0:1 in test () at ab.c:1686 #1 0x40000000000a55d0:0 in main (argc=4, argv=0x9ffffffffffff400) at ab.c:2215 (gdb) p con $1 = (struct connection *) 0x0 (gdb) p i $2 = 0
heap allocation failed... I just wanted to know ;)
okay, so your max of 20000 sounds reasonable (plenty generous) to me... with 63K or so max ephemeral ports, you're not going to go far unless connections are long-lived
