freebsd kernel with SKQ
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Mateusz Guzik 4876636eb7 cache: ignore purgevfs requests for filesystems with few vnodes
purgevfs is purely optional and induces lock contention in workloads
which frequently mount and unmount filesystems.

In particular, poudriere will do this for filesystems with 4 vnodes or
less. Full cache scan is clearly wasteful.

Since there is no explicit counter for namecache entries, the number of
vnodes used by the target fs is checked.

The default limit is the number of bucket locks.

Reviewed by:	kib
2016-10-03 00:02:32 +00:00
bin In v3 UNIX, the kill utility is documented in category 8, not 1. 2016-10-02 23:13:46 +00:00
cddl MFV r304159: 7277 zdb should be able to print zfs_dbgmsg's 2016-09-03 10:07:46 +00:00
contrib Import libucl 20160812 2016-10-01 00:14:01 +00:00
crypto Merge OpenSSL 1.0.2j. 2016-09-26 14:22:17 +00:00
etc Fix periodic scripts when an NFS mount covers a local mount 2016-09-20 18:47:33 +00:00
gnu Add a WITHOUT_DIALOG src.conf(5) knob 2016-09-27 18:08:38 +00:00
include Export the mq_getfd_np() symbol from librt.so, which allows to get 2016-10-02 17:02:59 +00:00
kerberos5 DIRDEPS_BUILD: Update dependencies 2016-06-14 16:55:05 +00:00
lib Export the mq_getfd_np() symbol from librt.so, which allows to get 2016-10-02 17:02:59 +00:00
libexec Use SRCTOP instead of the longhand version for defining the path to contrib/atf 2016-09-20 16:24:22 +00:00
release Use "generic" ALLWINNER_UP kernel config for Cubieboard release. 2016-09-12 16:10:47 +00:00
rescue DIRDEPS_BUILD: Build crunchide for the host. 2016-09-01 23:52:25 +00:00
sbin mksnap_ffs appeared in FreeBSD 5.1. 2016-10-02 23:59:31 +00:00
secure Merge OpenSSL 1.0.2j. 2016-09-26 14:22:17 +00:00
share Add NetBSD 5.1.4, 5.2.2 & 7.0.1 releases to the tree. 2016-09-30 20:06:05 +00:00
sys cache: ignore purgevfs requests for filesystems with few vnodes 2016-10-03 00:02:32 +00:00
targets DIRDEPS_BUILD: Connect new directories. 2016-09-23 22:46:19 +00:00
tests Export the mq_getfd_np() symbol from librt.so, which allows to get 2016-10-02 17:02:59 +00:00
tools Add a WITHOUT_DIALOG src.conf(5) knob 2016-09-27 18:08:38 +00:00
usr.bin Don't declare the 'temp' timeval as static. 2016-10-01 22:17:40 +00:00
usr.sbin rtsold: Log messages about unexpected RAs at LOG_DEBUG. 2016-10-02 00:56:21 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2015-12-31 11:21:45 +00:00
LOCKS
MAINTAINERS Remove myself from kern_timeout.c yeah! 2016-07-27 20:37:32 +00:00
Makefile Import OpenSSL 1.0.2j. 2016-09-26 14:13:11 +00:00
Makefile.inc1 Add a WITHOUT_DIALOG src.conf(5) knob 2016-09-27 18:08:38 +00:00
Makefile.libcompat Fix in-tree GCC builds after r304681. 2016-08-23 19:29:37 +00:00
ObsoleteFiles.inc Add more obsolete files 2016-09-11 19:51:32 +00:00
README Import OpenSSL 1.0.2j. 2016-09-26 14:13:11 +00:00
UPDATING Relocatable object files are renamed from *.So to *.pico 2016-09-25 16:39:18 +00:00

This is the top level of the FreeBSD source directory.  This file
was last revised on:
$FreeBSD$

For copyright information, please see the file COPYRIGHT in this
directory (additional copyright information also exists for some
sources in this tree - please see the specific source directories for
more information).

The Makefile in this directory supports a number of targets for
building components (or all) of the FreeBSD source tree.  See build(7)
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The `buildkernel` and `installkernel` targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process.  See build(7), config(8),
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
for more information.

Note: If you want to build and install the kernel with the
`buildkernel` and `installkernel` targets, you might need to build
world before.  More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf
sub-directory.  GENERIC is the default configuration used in release builds.
NOTES contains entries and documentation for all possible
devices, not just those commonly used.


Source Roadmap:
---------------

bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

sys		Kernel sources.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.


For information on synchronizing your source tree with one or more of
the FreeBSD Project's development branches, please see:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html