[src/netbsd-8]: src/sys Pull up following revision(s) (requested by simonb in...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/60183afb3412
branches:  netbsd-8
changeset: 951570:60183afb3412
user:      martin <martin%NetBSD.org@localhost>
date:      Sat Feb 06 15:22:19 2021 +0000

description:
Pull up following revision(s) (requested by simonb in ticket #1649):

        sys/sys/param.h: revision 1.679
        sys/conf/param.c: revision 1.69
        sys/kern/init_main.c: revision 1.533 (via patch)

Set a better default for MAXFILES on larger RAM machines if not
otherwise specified the kernel config file.  Arbitary numbers are
20,000 files for 16GB RAM or more and 10,000 files for 1GB RAM or
more.

TODO: Adjust this and other values totally dynamically.

diffstat:

 sys/conf/param.c     |   8 ++------
 sys/kern/init_main.c |  22 +++++++++++++++++++---
 sys/sys/param.h      |  14 +++++++++-----
 3 files changed, 30 insertions(+), 14 deletions(-)

diffs (111 lines):

diff -r e69fe8fc19b7 -r 60183afb3412 sys/conf/param.c
--- a/sys/conf/param.c  Fri Jan 29 18:19:21 2021 +0000
+++ b/sys/conf/param.c  Sat Feb 06 15:22:19 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: param.c,v 1.67.10.1 2019/04/10 07:39:31 martin Exp $   */
+/*     $NetBSD: param.c,v 1.67.10.2 2021/02/06 15:22:19 martin Exp $   */
 
 /*
  * Copyright (c) 1980, 1986, 1989 Regents of the University of California.
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: param.c,v 1.67.10.1 2019/04/10 07:39:31 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: param.c,v 1.67.10.2 2021/02/06 15:22:19 martin Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_hz.h"
@@ -105,10 +105,6 @@
 #define        HZ 100
 #endif
 
-#ifndef MAXFILES
-#define        MAXFILES        (3 * (NPROC + MAXUSERS) + 80)
-#endif
-
 #ifndef MAXEXEC
 #define        MAXEXEC         16
 #endif
diff -r e69fe8fc19b7 -r 60183afb3412 sys/kern/init_main.c
--- a/sys/kern/init_main.c      Fri Jan 29 18:19:21 2021 +0000
+++ b/sys/kern/init_main.c      Sat Feb 06 15:22:19 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: init_main.c,v 1.490.6.1 2018/07/13 15:49:55 martin Exp $       */
+/*     $NetBSD: init_main.c,v 1.490.6.2 2021/02/06 15:22:19 martin Exp $       */
 
 /*-
  * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
@@ -97,7 +97,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.490.6.1 2018/07/13 15:49:55 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.490.6.2 2021/02/06 15:22:19 martin Exp $");
 
 #include "opt_ddb.h"
 #include "opt_inet.h"
@@ -447,7 +447,23 @@
            10, VNODE_KMEM_MAXPCT) / VNODE_COST;
        if (usevnodes > desiredvnodes)
                desiredvnodes = usevnodes;
-#endif
+#endif /* NVNODE_IMPLICIT */
+#ifdef MAXFILES_IMPLICIT
+       /*
+        * If maximum number of files is not explicitly defined in
+        * kernel config, adjust the number so that it is somewhat
+        * more reasonable on machines with larger memory sizes.
+        * Arbitary numbers are 20,000 files for 16GB RAM or more
+        * and 10,000 files for 1GB RAM or more.
+        *
+        * XXXtodo: adjust this and other values totally dynamically
+        */
+       if (ctob((uint64_t)physmem) >= 16ULL * 1024 * 1024 * 1024)
+               maxfiles = MAX(maxfiles, 20000);
+       if (ctob((uint64_t)physmem) >= 1024 * 1024 * 1024)
+               maxfiles = MAX(maxfiles, 10000);
+#endif /* MAXFILES_IMPLICIT */
+
        vfsinit();
        lf_init();
 
diff -r e69fe8fc19b7 -r 60183afb3412 sys/sys/param.h
--- a/sys/sys/param.h   Fri Jan 29 18:19:21 2021 +0000
+++ b/sys/sys/param.h   Sat Feb 06 15:22:19 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: param.h,v 1.542.2.10 2020/04/14 15:50:28 martin Exp $  */
+/*     $NetBSD: param.h,v 1.542.2.11 2021/02/06 15:22:19 martin Exp $  */
 
 /*-
  * Copyright (c) 1982, 1986, 1989, 1993
@@ -148,13 +148,17 @@
 #include <sys/uio.h>
 #include <uvm/uvm_param.h>
 #ifndef NPROC
-#define        NPROC   (20 + 16 * MAXUSERS)
+#define        NPROC                   (20 + 16 * MAXUSERS)
+#endif
+#ifndef MAXFILES
+#define        MAXFILES                (3 * (NPROC + MAXUSERS) + 80)
+#define        MAXFILES_IMPLICIT
 #endif
 #ifndef NTEXT
-#define        NTEXT   (80 + NPROC / 8)                /* actually the object cache */
+#define        NTEXT                   (80 + NPROC / 8) /* actually the object cache */
 #endif
 #ifndef NVNODE
-#define        NVNODE  (NPROC + NTEXT + 100)
+#define        NVNODE                  (NPROC + NTEXT + 100)
 #define        NVNODE_IMPLICIT
 #endif
 #ifndef VNODE_KMEM_MAXPCT
@@ -163,7 +167,7 @@
 #ifndef BUFCACHE_VA_MAXPCT
 #define        BUFCACHE_VA_MAXPCT      20
 #endif
-#define        VNODE_COST      2048                    /* assumed space in bytes */
+#define        VNODE_COST              2048            /* assumed space in bytes */
 #endif /* _KERNEL */
 
 /* Signals. */