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Pull in the entire kmem_map size calculation from kern_malloc, rather

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than the shortcircuited version I had been using, which only worked
properly on i386 & amd64.

Also, change an autoscale constant to account for the more correct
kmem_map size.

Problem noticed by:     mux
This commit is contained in:
Mike Silbersack 2003-07-08 18:59:21 +00:00
parent c37faf267c
commit 41f16f8208
1 changed files with 11 additions and 3 deletions
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14
sys/kern/subr_param.c
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@ -137,12 +137,20 @@ init_param2(long physpages)
/* Kernel map size */
int kmempages, kmemtunable;
kmempages = VM_KMEM_SIZE / PAGE_SIZE;
#if defined(VM_KMEM_SIZE_SCALE)
if ((physpages / VM_KMEM_SIZE_SCALE) > kmempages)
kmempages = (physpages / VM_KMEM_SIZE_SCALE);
#endif
#if defined(VM_KMEM_SIZE_MAX)
if (kmempages * PAGE_SIZE >= VM_KMEM_SIZE_MAX)
kmempages = VM_KMEM_SIZE_MAX / PAGE_SIZE;
#endif
kmemtunable = 0;
TUNABLE_INT_FETCH("kern.vm.kmem.size", &kmemtunable);
if (kmemtunable != 0)
kmempages = kmemtunable / PAGE_SIZE;
else
kmempages = VM_KMEM_SIZE_MAX / PAGE_SIZE;
kmempages = min(physpages, kmempages);
/* Base parameters */
maxusers = MAXUSERS;
@ -178,7 +186,7 @@ init_param2(long physpages)
* pipe memory usage to 1% of the same. Ensure that all have
* reasonable floors. (See sys_pipe.c for more info.)
*/
maxpipes = kmempages / 20;
maxpipes = kmempages / 5;
maxpipekva = (kmempages / 40) * PAGE_SIZE;
maxpipekvawired = (kmempages / 100) * PAGE_SIZE;