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arm: tune vmparam.h towards a little more modern

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An 8MB max stack size is quite limiting in today's world, and in-fact is
the *default* stack size for almost every other arch (including mips).

Raise the default to 4MB (should be pretty reasonable) and the max to 64MB.
NetBSD made a similar move back in 2015 and raised MAXDSIZ to 1856 at the
same time, so let's just roll that in as well. They later lowered it, but
eventually raised it back to 1856 in order to build rust.

This was noticed while looking at qemu-bsd-user's default stack sizes and
growth behavior (or lack thereof).

Reviewed by:	ian
Differential Revision:	https://reviews.freebsd.org/D27218
This commit is contained in:
Kyle Evans 2020-12-31 11:12:39 -06:00
parent c4a0333b55
commit 202aea9c82
1 changed files with 3 additions and 3 deletions
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6
sys/arm/include/vmparam.h
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@ -50,13 +50,13 @@
#define DFLDSIZ (128UL*1024*1024) /* initial data size limit */ #define DFLDSIZ (128UL*1024*1024) /* initial data size limit */
#endif #endif
#ifndef MAXDSIZ #ifndef MAXDSIZ
#define MAXDSIZ (512UL*1024*1024) /* max data size */ #define MAXDSIZ (1856UL*1024*1024) /* max data size */
#endif #endif
#ifndef DFLSSIZ #ifndef DFLSSIZ
#define DFLSSIZ (2UL*1024*1024) /* initial stack size limit */ #define DFLSSIZ (4UL*1024*1024) /* initial stack size limit */
#endif #endif
#ifndef MAXSSIZ #ifndef MAXSSIZ
#define MAXSSIZ (8UL*1024*1024) /* max stack size */ #define MAXSSIZ (64UL*1024*1024) /* max stack size */
#endif #endif
#ifndef SGROWSIZ #ifndef SGROWSIZ
#define SGROWSIZ (128UL*1024) /* amount to grow stack */ #define SGROWSIZ (128UL*1024) /* amount to grow stack */