| machdep.c (879) | machdep.c (911) |
|---|---|
| 1/*- 2 * Copyright (c) 1992 Terrence R. Lambert. 3 * Copyright (c) 1982, 1987, 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * William Jolitz. 8 * --- 21 unchanged lines hidden (view full) --- 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 | 1/*- 2 * Copyright (c) 1992 Terrence R. Lambert. 3 * Copyright (c) 1982, 1987, 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * William Jolitz. 8 * --- 21 unchanged lines hidden (view full) --- 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 |
| 38 * $Id: machdep.c,v 1.21 1993/12/12 12:22:56 davidg Exp $ | 38 * $Id: machdep.c,v 1.22 1993/12/19 00:50:03 wollman Exp $ |
| 39 */ 40 41#include "npx.h" 42#include "isa.h" 43 44#include <stddef.h> 45#include "param.h" 46#include "systm.h" --- 159 unchanged lines hidden (view full) --- 206#endif 207 /* 208 * Determine how many buffers to allocate. 209 * Use 20% of memory of memory beyond the first 2MB 210 * Insure a minimum of 16 fs buffers. 211 * We allocate 1/2 as many swap buffer headers as file i/o buffers. 212 */ 213 if (bufpages == 0) | 39 */ 40 41#include "npx.h" 42#include "isa.h" 43 44#include <stddef.h> 45#include "param.h" 46#include "systm.h" --- 159 unchanged lines hidden (view full) --- 206#endif 207 /* 208 * Determine how many buffers to allocate. 209 * Use 20% of memory of memory beyond the first 2MB 210 * Insure a minimum of 16 fs buffers. 211 * We allocate 1/2 as many swap buffer headers as file i/o buffers. 212 */ 213 if (bufpages == 0) |
| 214 bufpages = ((physmem << PGSHIFT) - 3072*1024) / NBPG / 5; 215 if (bufpages < 32) 216 bufpages = 32; | 214 bufpages = ((physmem << PGSHIFT) - 2048*1024) / NBPG / 5; 215 if (bufpages < 64) 216 bufpages = 64; |
| 217 218 /* 219 * We must still limit the maximum number of buffers to be no 220 * more than 2/5's of the size of the kernal malloc region, this 221 * will only take effect for machines with lots of memory 222 */ 223 bufpages = min(bufpages, (VM_KMEM_SIZE / NBPG) * 2 / 5); 224 if (nbuf == 0) { 225 nbuf = bufpages / 2; | 217 218 /* 219 * We must still limit the maximum number of buffers to be no 220 * more than 2/5's of the size of the kernal malloc region, this 221 * will only take effect for machines with lots of memory 222 */ 223 bufpages = min(bufpages, (VM_KMEM_SIZE / NBPG) * 2 / 5); 224 if (nbuf == 0) { 225 nbuf = bufpages / 2; |
| 226 if (nbuf < 16) 227 nbuf = 16; | 226 if (nbuf < 32) 227 nbuf = 32; |
| 228 } 229 freebufspace = bufpages * NBPG; 230 if (nswbuf == 0) { 231 nswbuf = (nbuf / 2) &~ 1; /* force even */ 232 if (nswbuf > 256) 233 nswbuf = 256; /* sanity */ 234 } 235 valloc(swbuf, struct buf, nswbuf); --- 1267 unchanged lines hidden --- | 228 } 229 freebufspace = bufpages * NBPG; 230 if (nswbuf == 0) { 231 nswbuf = (nbuf / 2) &~ 1; /* force even */ 232 if (nswbuf > 256) 233 nswbuf = 256; /* sanity */ 234 } 235 valloc(swbuf, struct buf, nswbuf); --- 1267 unchanged lines hidden --- |