/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
#include <mach/mach_types.h>
+#include <kern/startup.h>
#include <vm/vm_kern.h>
#include <mach/vm_prot.h>
#include <sys/param.h>
#include <sys/buf_internal.h>
-#include <sys/clist.h>
+#include <sys/file_internal.h>
+#include <sys/proc_internal.h>
+#include <sys/mcache.h>
#include <sys/mbuf.h>
#include <sys/systm.h>
#include <sys/tty.h>
-#include <dev/ppc/cons.h>
-
+#include <sys/vnode.h>
+#include <sys/sysctl.h>
+#include <machine/cons.h>
+#include <pexpert/pexpert.h>
+#include <sys/socketvar.h>
+#include <pexpert/pexpert.h>
+#include <netinet/tcp_var.h>
+
+extern uint32_t kern_maxvnodes;
extern vm_map_t mb_map;
-extern u_long tcp_sendspace;
-extern u_long tcp_recvspace;
+#if INET
+extern uint32_t tcp_sendspace;
+extern uint32_t tcp_recvspace;
+#endif
void bsd_bufferinit(void);
-extern void md_prepare_for_shutdown(int, int, char *);
+
+unsigned int bsd_mbuf_cluster_reserve(boolean_t *);
+void bsd_scale_setup(int);
+void bsd_exec_setup(int);
/*
* Declare these as initialized data so we can patch them.
*/
-#ifdef NBUF
-int nbuf = NBUF;
-int niobuf = NBUF / 2;
-
+#ifdef NBUF
+int max_nbuf_headers = NBUF;
+int niobuf_headers = (NBUF / 2) + 2048;
+int nbuf_hashelements = NBUF;
+int nbuf_headers = NBUF;
#else
-int nbuf = 0;
-int niobuf = 0;
-
+int max_nbuf_headers = 0;
+int niobuf_headers = 0;
+int nbuf_hashelements = 0;
+int nbuf_headers = 0;
#endif
-int srv = 0; /* Flag indicates a server boot when set */
+SYSCTL_INT(_kern, OID_AUTO, nbuf, CTLFLAG_RD | CTLFLAG_LOCKED, &nbuf_headers, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, maxnbuf, CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_KERN, &max_nbuf_headers, 0, "");
+
+__private_extern__ int customnbuf = 0;
int ncl = 0;
+/* Indicates a server boot when set */
+TUNABLE(int, serverperfmode, "serverperfmode", 0);
+
+#if SOCKETS
+static unsigned int mbuf_poolsz;
+#endif
+
vm_map_t buffer_map;
vm_map_t bufferhdr_map;
-
+static int vnodes_sized = 0;
extern void bsd_startupearly(void);
vm_size_t size;
kern_return_t ret;
- if (nbuf == 0)
- nbuf = atop(sane_size / 100); /* Get 1% of ram, but no more than we can map */
- if (nbuf > 8192)
- nbuf = 8192;
- if (nbuf < 256)
- nbuf = 256;
-
- if (niobuf == 0)
- niobuf = nbuf;
- if (niobuf > 4096)
- niobuf = 4096;
- if (niobuf < 128)
- niobuf = 128;
-
- size = (nbuf + niobuf) * sizeof(struct buf);
+ /* clip the number of buf headers upto 16k */
+ if (max_nbuf_headers == 0) {
+ max_nbuf_headers = (int)atop_kernel(sane_size / 50); /* Get 2% of ram, but no more than we can map */
+ }
+ if ((customnbuf == 0) && ((unsigned int)max_nbuf_headers > 16384)) {
+ max_nbuf_headers = 16384;
+ }
+ if (max_nbuf_headers < CONFIG_MIN_NBUF) {
+ max_nbuf_headers = CONFIG_MIN_NBUF;
+ }
+
+ /* clip the number of hash elements to 200000 */
+ if ((customnbuf == 0) && nbuf_hashelements == 0) {
+ nbuf_hashelements = (int)atop_kernel(sane_size / 50);
+ if ((unsigned int)nbuf_hashelements > 200000) {
+ nbuf_hashelements = 200000;
+ }
+ } else {
+ nbuf_hashelements = max_nbuf_headers;
+ }
+
+ if (niobuf_headers == 0) {
+ if (max_nbuf_headers < 4096) {
+ niobuf_headers = max_nbuf_headers;
+ } else {
+ niobuf_headers = (max_nbuf_headers / 2) + 2048;
+ }
+ }
+ if (niobuf_headers < CONFIG_MIN_NIOBUF) {
+ niobuf_headers = CONFIG_MIN_NIOBUF;
+ }
+
+ size = (max_nbuf_headers + niobuf_headers) * sizeof(struct buf);
size = round_page(size);
ret = kmem_suballoc(kernel_map,
- &firstaddr,
- size,
- FALSE,
- VM_FLAGS_ANYWHERE,
- &bufferhdr_map);
-
- if (ret != KERN_SUCCESS)
+ &firstaddr,
+ size,
+ FALSE,
+ VM_FLAGS_ANYWHERE,
+ VM_MAP_KERNEL_FLAGS_NONE,
+ VM_KERN_MEMORY_FILE,
+ &bufferhdr_map);
+
+ if (ret != KERN_SUCCESS) {
panic("Failed to create bufferhdr_map");
+ }
ret = kernel_memory_allocate(bufferhdr_map,
- &firstaddr,
- size,
- 0,
- KMA_HERE | KMA_KOBJECT);
+ &firstaddr,
+ size,
+ 0,
+ KMA_HERE | KMA_KOBJECT,
+ VM_KERN_MEMORY_FILE);
- if (ret != KERN_SUCCESS)
+ if (ret != KERN_SUCCESS) {
panic("Failed to allocate bufferhdr_map");
+ }
- buf = (struct buf *) firstaddr;
- bzero(buf, size);
+ buf_headers = (struct buf *) firstaddr;
+ bzero(buf_headers, size);
- if (sane_size > (64 * 1024 * 1024) || ncl) {
+#if SOCKETS
+ {
+ static const unsigned int maxspace = 128 * 1024;
int scale;
- if ((nmbclusters = ncl) == 0) {
- if ((nmbclusters = ((sane_size / 16)/MCLBYTES)) > 32768)
- nmbclusters = 32768;
- }
+ nmbclusters = bsd_mbuf_cluster_reserve(NULL) / MCLBYTES;
+
+#if INET
if ((scale = nmbclusters / NMBCLUSTERS) > 1) {
tcp_sendspace *= scale;
tcp_recvspace *= scale;
- if (tcp_sendspace > (32 * 1024))
- tcp_sendspace = 32 * 1024;
- if (tcp_recvspace > (32 * 1024))
- tcp_recvspace = 32 * 1024;
+ if (tcp_sendspace > maxspace) {
+ tcp_sendspace = maxspace;
+ }
+ if (tcp_recvspace > maxspace) {
+ tcp_recvspace = maxspace;
+ }
}
+#endif /* INET */
+ }
+#endif /* SOCKETS */
+
+ if (vnodes_sized == 0) {
+ if (!PE_get_default("kern.maxvnodes", &desiredvnodes, sizeof(desiredvnodes))) {
+ /*
+ * Size vnodes based on memory
+ * Number vnodes is (memsize/64k) + 1024
+ * This is the calculation that is used by launchd in tiger
+ * we are clipping the max based on 16G
+ * ie ((16*1024*1024*1024)/(64 *1024)) + 1024 = 263168;
+ * CONFIG_VNODES is set to 263168 for "medium" configurations (the default)
+ * but can be smaller or larger.
+ */
+ desiredvnodes = (int)(sane_size / 65536) + 1024;
+#ifdef CONFIG_VNODES
+ if (desiredvnodes > CONFIG_VNODES) {
+ desiredvnodes = CONFIG_VNODES;
+ }
+#endif
+ }
+ vnodes_sized = 1;
}
}
void
bsd_bufferinit(void)
{
+#if SOCKETS
kern_return_t ret;
-
- cons.t_dev = makedev(12, 0);
+#endif
+ /*
+ * Note: Console device initialized in kminit() from bsd_autoconf()
+ * prior to call to us in bsd_init().
+ */
bsd_startupearly();
+#if SOCKETS
ret = kmem_suballoc(kernel_map,
- (vm_offset_t *) & mbutl,
- (vm_size_t) (nmbclusters * MCLBYTES),
- FALSE,
- VM_FLAGS_ANYWHERE,
- &mb_map);
-
- if (ret != KERN_SUCCESS)
+ (vm_offset_t *) &mbutl,
+ (vm_size_t) (nmbclusters * MCLBYTES),
+ FALSE,
+ VM_FLAGS_ANYWHERE,
+ VM_MAP_KERNEL_FLAGS_NONE,
+ VM_KERN_MEMORY_MBUF,
+ &mb_map);
+
+ if (ret != KERN_SUCCESS) {
panic("Failed to allocate mb_map\n");
+ }
+#endif /* SOCKETS */
/*
* Set up buffers, so they can be used to read disk labels.
*/
bufinit();
}
+
+/* 512 MB (K32) or 2 GB (K64) hard limit on size of the mbuf pool */
+#if !defined(__LP64__)
+#define MAX_MBUF_POOL (512 << MBSHIFT)
+#else
+#define MAX_MBUF_POOL (2ULL << GBSHIFT)
+#endif /* !__LP64__ */
+#define MAX_NCL (MAX_MBUF_POOL >> MCLSHIFT)
+
+#if SOCKETS
+/*
+ * this has been broken out into a separate routine that
+ * can be called from the x86 early vm initialization to
+ * determine how much lo memory to reserve on systems with
+ * DMA hardware that can't fully address all of the physical
+ * memory that is present.
+ */
+unsigned int
+bsd_mbuf_cluster_reserve(boolean_t *overridden)
+{
+ int mbuf_pool = 0;
+ static boolean_t was_overridden = FALSE;
+
+ /* If called more than once, return the previously calculated size */
+ if (mbuf_poolsz != 0) {
+ goto done;
+ }
+
+ /*
+ * Some of these are parsed in parse_bsd_args(), but for x86 we get
+ * here early from i386_vm_init() and so we parse them now, in order
+ * to correctly compute the size of the low-memory VM pool. It is
+ * redundant but rather harmless.
+ */
+ (void) PE_parse_boot_argn("ncl", &ncl, sizeof(ncl));
+ (void) PE_parse_boot_argn("mbuf_pool", &mbuf_pool, sizeof(mbuf_pool));
+
+ /*
+ * Convert "mbuf_pool" from MB to # of 2KB clusters; it is
+ * equivalent to "ncl", except that it uses different unit.
+ */
+ if (mbuf_pool != 0) {
+ ncl = (mbuf_pool << MBSHIFT) >> MCLSHIFT;
+ }
+
+ if (sane_size > (64 * 1024 * 1024) || ncl != 0) {
+ if (ncl || serverperfmode) {
+ was_overridden = TRUE;
+ }
+
+ if ((nmbclusters = ncl) == 0) {
+ /* Auto-configure the mbuf pool size */
+ nmbclusters = mbuf_default_ncl(mem_actual);
+ } else {
+ /* Make sure it's not odd in case ncl is manually set */
+ if (nmbclusters & 0x1) {
+ --nmbclusters;
+ }
+
+ /* And obey the upper limit */
+ if (nmbclusters > MAX_NCL) {
+ nmbclusters = MAX_NCL;
+ }
+ }
+
+ /* Round it down to nearest multiple of PAGE_SIZE */
+ nmbclusters = (unsigned int)P2ROUNDDOWN(nmbclusters, NCLPG);
+ }
+ mbuf_poolsz = nmbclusters << MCLSHIFT;
+done:
+ if (overridden) {
+ *overridden = was_overridden;
+ }
+
+ return mbuf_poolsz;
+}
+#endif
+
+#if defined(__LP64__)
+extern int tcp_tcbhashsize;
+extern int max_cached_sock_count;
+#endif
+
+
+void
+bsd_scale_setup(int scale)
+{
+#if defined(__LP64__)
+ if ((scale > 0) && (serverperfmode == 0)) {
+ maxproc *= scale;
+ maxprocperuid = (maxproc * 2) / 3;
+ if (scale > 2) {
+ maxfiles *= scale;
+ maxfilesperproc = maxfiles / 2;
+ }
+ }
+ /* Apply server scaling rules */
+ if ((scale > 0) && (serverperfmode != 0)) {
+ maxproc = 2500 * scale;
+ hard_maxproc = maxproc;
+ /* no fp usage */
+ maxprocperuid = (maxproc * 3) / 4;
+ maxfiles = (150000 * scale);
+ maxfilesperproc = maxfiles / 2;
+ desiredvnodes = maxfiles;
+ vnodes_sized = 1;
+ tcp_tfo_backlog = 100 * scale;
+ if (scale > 4) {
+ /* clip somaxconn at 32G level */
+ somaxconn = 2048;
+ /*
+ * For scale > 4 (> 32G), clip
+ * tcp_tcbhashsize to 32K
+ */
+ tcp_tcbhashsize = 32 * 1024;
+
+ if (scale > 7) {
+ /* clip at 64G level */
+ max_cached_sock_count = 165000;
+ } else {
+ max_cached_sock_count = 60000 + ((scale - 1) * 15000);
+ }
+ } else {
+ somaxconn = 512 * scale;
+ tcp_tcbhashsize = 4 * 1024 * scale;
+ max_cached_sock_count = 60000 + ((scale - 1) * 15000);
+ }
+ }
+
+ if (maxproc > hard_maxproc) {
+ hard_maxproc = maxproc;
+ }
+#endif
+ bsd_exec_setup(scale);
+}
projects / apple / xnu.git / blobdiff