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5ea8413d0a
freebsd-dev/lib
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Jason Evans 5ea8413d0a Implement dynamic load balancing of thread-->arena mapping, based on lock 
contention.  The intent is to dynamically adjust to load imbalances, which
can cause severe contention.

Use pthread mutexes where possible instead of libc "spinlocks" (they aren't
actually spin locks).  Conceptually, this change is meant only to support
the dynamic load balancing code by enabling the use of spin locks, but it
has the added apparent benefit of substantially improving performance due to
reduced context switches when there is moderate arena lock contention.

Proper tuning parameter configuration for this change is a finicky business,
and it is very much machine-dependent.  One seemingly promising solution
would be to run a tuning program during operating system installation that
computes appropriate settings for load balancing.  (The pthreads adaptive
spin locks should probably be similarly tuned.)
2007-11-27 03:17:30 +00:00
..
bind Remove the special atomic.h case for arm, and allow it to use 2007-06-05 22:17:16 +00:00
csu Fix TLS on sparc64 for statically and dynamically linked binaries 2006-10-08 02:50:34 +00:00
libalias - Bump share library version which were missed in last bump 2007-06-18 18:47:54 +00:00
libarchive When skipping input data, don't overflow a 32-bit size_t. 2007-10-27 22:45:40 +00:00
libatm Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libautofs Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbegemot Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbluetooth Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbsm Install getaudit_addr(2) and setaudit_addr(2) links to getaudit(2) and 2007-10-19 10:37:34 +00:00
libbsnmp - Bump share library version which were missed in last bump 2007-06-18 18:47:54 +00:00
libbz2 Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libc Implement dynamic load balancing of thread-->arena mapping, based on lock 2007-11-27 03:17:30 +00:00
libc_r Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libcalendar
libcam 2nd and final commit that moves us to CAM_NEW_TRAN_CODE 2006-11-02 00:54:38 +00:00
libcom_err
libcompat Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libcrypt Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libdevinfo Markup fixes. 2006-09-17 21:27:35 +00:00
libdevstat Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libdisk Hmmm, must get reading glasses or else change the font on my terminal. That 2007-11-24 11:58:54 +00:00
libedit Merge NetBSD changes, among them: 2007-06-10 19:06:09 +00:00
libelf - Allow source descriptors with no data to be used as arguments to the 2007-11-26 03:09:33 +00:00
libexpat Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libfetch Enable FTP_COMBINE_CWDS. 2007-05-24 20:28:14 +00:00
libftpio Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libgeom Remove parameter names from prototypes to avoid namespace issues. 2007-05-06 10:00:27 +00:00
libgpib Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libgssapi While checking over the libraries for 7.0-REL Kris found the following 2007-11-20 04:20:32 +00:00
libipsec Commit IPv6 support for FAST_IPSEC to the tree. 2007-07-01 12:08:08 +00:00
libipx Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libkiconv Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libkse Add _pthread_mutex_init_calloc_cb() to libthr and libkse, so that malloc(3) 2007-11-27 03:16:44 +00:00
libkvm Aparrently MACXOCOMLEN exisrts only on my machine 2007-10-26 15:25:28 +00:00
libmagic FreeBSD has <limits.h>. 2007-05-24 22:10:22 +00:00
libmd Use unsigned comparisons. Prior to this commit, SHA1_Update and 2007-05-14 05:00:37 +00:00
libmemstat Make pointer argument to kread_string() const since the kernel structure 2007-05-21 18:16:04 +00:00
libmilter New files in sendmail 8.14.1 2007-04-09 01:45:30 +00:00
libmp Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libncp Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libnetgraph Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libngatm Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libopie Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libpam Correct documentation of ~/.opiealways 2007-10-26 07:50:11 +00:00
libpcap Update for libpcap 0.9.8 import 2007-10-16 02:10:44 +00:00
libpmc - Add an overview of the pmc(3) API. 2007-11-25 06:50:31 +00:00
libradius Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
librpcsvc Reimplementation of world/kernel build options. For details, see: 2006-03-17 18:54:44 +00:00
librt Enable symbol versioning by default. Use WITHOUT_SYMVER to disable it. 2007-05-13 14:12:40 +00:00
libsbuf
libsdp Fix bug in handling SDP continuation state. 2007-11-16 15:13:12 +00:00
libsm New files in sendmail 8.14.1 2007-04-09 01:45:30 +00:00
libsmb Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libsmdb
libsmutil
libstand First cut at support for booting a GPT labeled disk via the BIOS bootstrap 2007-10-24 21:33:00 +00:00
libtacplus Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libtelnet Stop enforcing dependencies between MK_* options at Makefile level. 2006-07-31 13:29:36 +00:00
libthr Add _pthread_mutex_init_calloc_cb() to libthr and libkse, so that malloc(3) 2007-11-27 03:16:44 +00:00
libthread_db Add arm support in libthread_db. 2007-11-17 21:27:53 +00:00
libufs The ufs_disk_fillout(3) can take special device name (with or without /dev/ 2007-03-16 03:13:28 +00:00
libugidfw Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libusbhid Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libutil Bump up the number of ttys supported by pty(4) to 512 by making use of 2007-11-19 20:49:42 +00:00
libvgl Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libwrap Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
liby Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libypclnt Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libz Resolve conflicts. 2006-03-23 14:09:21 +00:00
msun Oops, back out previous commit since it was backwards to a wrong branch. 2007-06-14 05:57:13 +00:00
ncurses - Convert NO_INSTALLLIB option to a new syntax: makefiles should 2007-10-20 19:01:50 +00:00
Makefile Build libthread_db for arm as well. 2007-11-17 21:29:02 +00:00
Makefile.inc Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00