| subr_param.c (245469) | subr_param.c (245575) |
|---|---|
| 1/*- 2 * Copyright (c) 1980, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 21 unchanged lines hidden (view full) --- 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)param.c 8.3 (Berkeley) 8/20/94 35 */ 36 37#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1980, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 21 unchanged lines hidden (view full) --- 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)param.c 8.3 (Berkeley) 8/20/94 35 */ 36 37#include <sys/cdefs.h> |
| 38__FBSDID("$FreeBSD: head/sys/kern/subr_param.c 245469 2013-01-15 19:26:17Z alfred $"); | 38__FBSDID("$FreeBSD: head/sys/kern/subr_param.c 245575 2013-01-17 21:28:31Z andre $"); |
| 39 40#include "opt_param.h" 41#include "opt_msgbuf.h" 42#include "opt_maxusers.h" 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/kernel.h> --- 41 unchanged lines hidden (view full) --- 88int maxprocperuid; /* max # of procs per user */ 89int maxfiles; /* sys. wide open files limit */ 90int maxfilesperproc; /* per-proc open files limit */ 91int msgbufsize; /* size of kernel message buffer */ 92int ncallout; /* maximum # of timer events */ 93int nbuf; 94int ngroups_max; /* max # groups per process */ 95int nswbuf; | 39 40#include "opt_param.h" 41#include "opt_msgbuf.h" 42#include "opt_maxusers.h" 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/kernel.h> --- 41 unchanged lines hidden (view full) --- 88int maxprocperuid; /* max # of procs per user */ 89int maxfiles; /* sys. wide open files limit */ 90int maxfilesperproc; /* per-proc open files limit */ 91int msgbufsize; /* size of kernel message buffer */ 92int ncallout; /* maximum # of timer events */ 93int nbuf; 94int ngroups_max; /* max # groups per process */ 95int nswbuf; |
| 96quad_t maxmbufmem; /* max mbuf memory */ | |
| 97pid_t pid_max = PID_MAX; 98long maxswzone; /* max swmeta KVA storage */ 99long maxbcache; /* max buffer cache KVA storage */ 100long maxpipekva; /* Limit on pipe KVA */ 101int vm_guest; /* Running as virtual machine guest? */ 102u_long maxtsiz; /* max text size */ 103u_long dfldsiz; /* initial data size limit */ 104u_long maxdsiz; /* max data size */ --- 164 unchanged lines hidden (view full) --- 269} 270 271/* 272 * Boot time overrides that are scaled against main memory 273 */ 274void 275init_param2(long physpages) 276{ | 96pid_t pid_max = PID_MAX; 97long maxswzone; /* max swmeta KVA storage */ 98long maxbcache; /* max buffer cache KVA storage */ 99long maxpipekva; /* Limit on pipe KVA */ 100int vm_guest; /* Running as virtual machine guest? */ 101u_long maxtsiz; /* max text size */ 102u_long dfldsiz; /* initial data size limit */ 103u_long maxdsiz; /* max data size */ --- 164 unchanged lines hidden (view full) --- 268} 269 270/* 271 * Boot time overrides that are scaled against main memory 272 */ 273void 274init_param2(long physpages) 275{ |
| 277 quad_t realmem; | |
| 278 279 /* Base parameters */ 280 maxusers = MAXUSERS; 281 TUNABLE_INT_FETCH("kern.maxusers", &maxusers); 282 if (maxusers == 0) { 283 maxusers = physpages / (2 * 1024 * 1024 / PAGE_SIZE); 284 if (maxusers < 32) 285 maxusers = 32; --- 43 unchanged lines hidden (view full) --- 329 * 330 * Clip callout to result of previous function of maxusers maximum 331 * 384. This is still huge, but acceptable. 332 */ 333 ncallout = imin(16 + maxproc + maxfiles, 18508); 334 TUNABLE_INT_FETCH("kern.ncallout", &ncallout); 335 336 /* | 276 277 /* Base parameters */ 278 maxusers = MAXUSERS; 279 TUNABLE_INT_FETCH("kern.maxusers", &maxusers); 280 if (maxusers == 0) { 281 maxusers = physpages / (2 * 1024 * 1024 / PAGE_SIZE); 282 if (maxusers < 32) 283 maxusers = 32; --- 43 unchanged lines hidden (view full) --- 327 * 328 * Clip callout to result of previous function of maxusers maximum 329 * 384. This is still huge, but acceptable. 330 */ 331 ncallout = imin(16 + maxproc + maxfiles, 18508); 332 TUNABLE_INT_FETCH("kern.ncallout", &ncallout); 333 334 /* |
| 337 * The default limit for all mbuf related memory is 1/2 of all 338 * available kernel memory (physical or kmem). 339 * At most it can be 3/4 of available kernel memory. 340 */ 341 realmem = qmin((quad_t)physpages * PAGE_SIZE, 342 VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS); 343 maxmbufmem = realmem / 2; 344 TUNABLE_QUAD_FETCH("kern.maxmbufmem", &maxmbufmem); 345 if (maxmbufmem > (realmem / 4) * 3) 346 maxmbufmem = (realmem / 4) * 3; 347 348 /* | |
| 349 * The default for maxpipekva is min(1/64 of the kernel address space, 350 * max(1/64 of main memory, 512KB)). See sys_pipe.c for more details. 351 */ 352 maxpipekva = (physpages / 64) * PAGE_SIZE; 353 TUNABLE_LONG_FETCH("kern.ipc.maxpipekva", &maxpipekva); 354 if (maxpipekva < 512 * 1024) 355 maxpipekva = 512 * 1024; 356 if (maxpipekva > (VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS) / 64) --- 13 unchanged lines hidden --- | 335 * The default for maxpipekva is min(1/64 of the kernel address space, 336 * max(1/64 of main memory, 512KB)). See sys_pipe.c for more details. 337 */ 338 maxpipekva = (physpages / 64) * PAGE_SIZE; 339 TUNABLE_LONG_FETCH("kern.ipc.maxpipekva", &maxpipekva); 340 if (maxpipekva < 512 * 1024) 341 maxpipekva = 512 * 1024; 342 if (maxpipekva > (VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS) / 64) --- 13 unchanged lines hidden --- |