/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/param.h>
#include <sys/buf_internal.h>
+#include <sys/file_internal.h>
+#include <sys/proc_internal.h>
#include <sys/clist.h>
+#include <sys/mcache.h>
#include <sys/mbuf.h>
#include <sys/systm.h>
#include <sys/tty.h>
#include <sys/vnode.h>
#include <sys/sysctl.h>
-#include <dev/ppc/cons.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 || INET6
+extern uint32_t tcp_sendspace;
+extern uint32_t tcp_recvspace;
+#endif
void bsd_bufferinit(void);
-extern void md_prepare_for_shutdown(int, int, char *);
-int bsd_mbuf_cluster_reserve(void);
+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 max_nbuf_headers = NBUF;
-int niobuf = NBUF / 2;
+int niobuf_headers = (NBUF / 2) + 2048;
int nbuf_hashelements = NBUF;
-int nbuf = NBUF;
+int nbuf_headers = NBUF;
#else
int max_nbuf_headers = 0;
-int niobuf = 0;
+int niobuf_headers = 0;
int nbuf_hashelements = 0;
-int nbuf = 0;
+int nbuf_headers = 0;
#endif
-SYSCTL_INT (_kern, OID_AUTO, nbuf, CTLFLAG_RD, &nbuf, 0, "");
-SYSCTL_INT (_kern, OID_AUTO, maxnbuf, CTLFLAG_RW, &max_nbuf_headers, 0, "");
+SYSCTL_INT (_kern, OID_AUTO, nbuf, CTLFLAG_RD | CTLFLAG_LOCKED, &nbuf_headers, 0, "");
+SYSCTL_INT (_kern, OID_AUTO, maxnbuf, CTLFLAG_RW | CTLFLAG_LOCKED, &max_nbuf_headers, 0, "");
__private_extern__ int customnbuf = 0;
-int srv = 0; /* Flag indicates a server boot when set */
+int serverperfmode = 0; /* Flag indicates a server boot when set */
int ncl = 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);
/* clip the number of buf headers upto 16k */
if (max_nbuf_headers == 0)
- max_nbuf_headers = atop(sane_size / 50); /* Get 2% of ram, but no more than we can map */
+ max_nbuf_headers = atop_kernel(sane_size / 50); /* Get 2% of ram, but no more than we can map */
if ((customnbuf == 0) && (max_nbuf_headers > 16384))
max_nbuf_headers = 16384;
- if (max_nbuf_headers < 256)
- max_nbuf_headers = 256;
+ 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 = atop(sane_size / 50);
+ nbuf_hashelements = atop_kernel(sane_size / 50);
if (nbuf_hashelements > 200000)
nbuf_hashelements = 200000;
} else
nbuf_hashelements = max_nbuf_headers;
- if (niobuf == 0)
- niobuf = max_nbuf_headers;
- if (niobuf > 4096)
- niobuf = 4096;
- if (niobuf < 128)
- niobuf = 128;
+ 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) * sizeof(struct buf);
+ size = (max_nbuf_headers + niobuf_headers) * sizeof(struct buf);
size = round_page(size);
ret = kmem_suballoc(kernel_map,
&firstaddr,
size,
FALSE,
- VM_FLAGS_ANYWHERE,
+ VM_FLAGS_ANYWHERE | VM_MAKE_TAG(VM_KERN_MEMORY_FILE),
&bufferhdr_map);
if (ret != KERN_SUCCESS)
&firstaddr,
size,
0,
- KMA_HERE | KMA_KOBJECT);
+ KMA_HERE | KMA_KOBJECT,
+ VM_KERN_MEMORY_FILE);
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 SOCKETS
{
+ static const unsigned int maxspace = 128 * 1024;
int scale;
- nmbclusters = bsd_mbuf_cluster_reserve() / MCLBYTES;
+ nmbclusters = bsd_mbuf_cluster_reserve(NULL) / MCLBYTES;
+#if INET || INET6
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 || INET6 */
+ }
+#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 = (sane_size/65536) + 1024;
+#ifdef CONFIG_VNODES
+ if (desiredvnodes > CONFIG_VNODES)
+ desiredvnodes = CONFIG_VNODES;
+#endif
+ }
+ vnodes_sized = 1;
}
-
- /*
- * 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;
- */
- desiredvnodes = (sane_size/65536) + 1024;
- if (desiredvnodes > 263168)
- desiredvnodes = 263168;
}
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_offset_t *) &mbutl,
(vm_size_t) (nmbclusters * MCLBYTES),
FALSE,
- VM_FLAGS_ANYWHERE,
+ VM_FLAGS_ANYWHERE | VM_MAKE_TAG(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
* DMA hardware that can't fully address all of the physical
* memory that is present.
*/
-int
-bsd_mbuf_cluster_reserve(void)
+unsigned int
+bsd_mbuf_cluster_reserve(boolean_t *overridden)
{
- if (sane_size > (64 * 1024 * 1024) || ncl) {
+ 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) {
- if ((nmbclusters = ((sane_size / 16)/MCLBYTES)) > 32768)
- nmbclusters = 32768;
+ /* Auto-configure the mbuf pool size */
+ nmbclusters = mbuf_default_ncl(serverperfmode, sane_size);
+ } 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 = P2ROUNDDOWN(nmbclusters, NCLPG);
}
+ mbuf_poolsz = nmbclusters << MCLSHIFT;
+done:
+ if (overridden)
+ *overridden = was_overridden;
- return (nmbclusters * MCLBYTES);
+ 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;
+ }
+ /* 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);
+ }
+ }
+#endif
+ bsd_exec_setup(scale);
+}
+
projects / apple / xnu.git / blobdiff