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Author SHA1 Message Date
Jason Evans
26b5e3a18e Implement lazy deallocation of small objects. For each arena, maintain a 
vector of slots for lazily freed objects.  For each deallocation, before
doing the hard work of locking the arena and deallocating, try several times
to randomly insert the object into the vector using atomic operations.

This approach is particularly effective at reducing contention for
multi-threaded applications that use the producer-consumer model, wherein
one producer thread allocates objects, then multiple consumer threads
deallocate those objects.
 2007-11-27 03:13:15 +00:00
Jason Evans
bcd3523138 Avoid re-zeroing memory in calloc() when possible. 2007-11-27 03:12:15 +00:00
Jason Evans
1bbd1b8613 Fix stats printing of the amount of memory currently consumed by huge 
allocations. [1]

Fix calculation of the number of arenas when 'n' is specified via
MALLOC_OPTIONS.

Clean up various style inconsistencies.

Obtained from:	[1] NetBSD
 2007-11-27 03:09:23 +00:00
Joseph Koshy
742fe6de5d - Allow source descriptors with no data to be used as arguments to the 
elf{32,64}_xlateto[fm]() translation functions.  This change makes our
  libelf compatible with other ELF(3) implementations. [1]
- Update manual page to reflect this change.
- Style fixes: wrap a long line.

Submitted by:	jb [1]
 2007-11-26 03:09:33 +00:00
David Xu
eb326f14a2 Move the added code in revision 1.26 into function pthread_key_create, 
it should be there.
 2007-11-26 02:35:17 +00:00
Joseph Koshy
c89d1cf588 - Add an overview of the pmc(3) API. 
- Defer detailed descriptions of individual functions in the API to
  function-specific manual pages.
 2007-11-25 06:50:31 +00:00
Joseph Koshy
677d4530c2 Move the following functions into their own manual pages: 
- pmc_attach(), pmc_detach().
- pmc_capabilities(), pmc_cpuinfo(), pmc_ncpu(), pmc_npmc(), pmc_pmcinfo(),
  pmc_width().
- pmc_get_driver_stats().
- pmc_get_msr().
- pmc_read(), pmc_rw(), pmc_write().
- pmc_set().
- pmc_start(), pmc_stop().
 2007-11-25 06:38:55 +00:00
Joseph Koshy
f28834c1a2 - Describe function pmc_init() in its own manual page. 
- Describe functions pmc_configure_logfile(), pmc_flush_logfile() and
  pmc_writelog() in their own manual page.
 2007-11-25 03:18:42 +00:00
Mike Makonnen
e38d709cd6 Hmmm, must get reading glasses or else change the font on my terminal. That 
comma looks like a period.

Noticed by: brueffer
 2007-11-24 11:58:54 +00:00
Joseph Koshy
fcdeaa0525 Describe convenience functions `pmc_name_of_{capability,class,cputype, 
disposition,event,mode,state}' in their own manual page.
 2007-11-24 11:05:36 +00:00
Joseph Koshy
115cadfd60 Describe pmc_event_names_of_class() in its own manual page. 2007-11-23 12:30:55 +00:00
Joseph Koshy
1ddf079eed Describe pmc_enable() and pmc_disable() in their own manual page. 2007-11-23 12:21:34 +00:00
Joseph Koshy
8fe4cbb6b7 Describe pmc_allocate() and pmc_release() in their own manual page. 2007-11-23 11:46:08 +00:00
Joseph Koshy
1eb6c69045 Sections of type SHT_GNU_versym use ELF type ELF_T_HALF. Update manual 
page and code to match.

Submitted by:	jb
MFC After: 	1 day
 2007-11-23 11:29:36 +00:00
John Birrell
37e19e1d85 Use an intermediate pointer to avoid a strict aliasing warning. 2007-11-23 05:52:13 +00:00
David Xu
da4410f25f Simplify code, fix a thread cancellation bug in sem_wait and sem_timedwait. 2007-11-23 05:42:52 +00:00
David Xu
4877aaebc1 Reuse nwaiter member field to record number of waiters, in sem_post(), 
this should reduce the chance having to do a syscall when there is no
waiter in the semaphore.
 2007-11-21 06:01:02 +00:00
David Xu
73ba600faa Remove warning level and aliasing restrictions. 2007-11-21 05:29:57 +00:00
David Xu
9e1ddd5fa0 Convert ceiling type to unsigned integer before comparing, fix compiler 
warnings.
 2007-11-21 05:25:27 +00:00
David Xu
922d56f9de Add some function prototypes. 2007-11-21 05:23:54 +00:00
David Xu
6fdfcacb4a Remove umtx_t definition, use type long directly, add wrapper function 
_thr_umtx_wait_uint() for umtx operation UMTX_OP_WAIT_UINT, use the
function in semaphore operations, this fixed compiler warnings.
 2007-11-21 05:21:58 +00:00
John Birrell
3e636fa0e5 Use an intermediate pointer to avoid a strict aliasing warning. 
Note that ULong in this code is actually defined as an unsigned integer across
all arches so that the gdtoa() function always processes 32 bit data
despite the unfortunate naming of "ULong".
 2007-11-21 01:10:42 +00:00
Mike Makonnen
84f2123154 Enclose entire header in #ifndef _LIBDISK_H_ 2007-11-20 22:48:32 +00:00
Ken Smith
c0bb7d9461 While checking over the libraries for 7.0-REL Kris found the following 
libraries had not had their versions bumped relative to 6.3-REL but
had indeed been changed.  We need to bump their version so they can be
properly added to the compat6x port:

	libasn1.so.8 libgssapi.so.8 libhdb.so.8 libkadm5clnt.so.8
	libkadm5srv.so.8 libkafs5.so.8 libkrb5.so.8 libobjc.so.2

MFC After:	1 day
 2007-11-20 04:20:32 +00:00
John Birrell
0aad0f2282 These are the things that the tinderbox has problems with because it 
doesn't use the default CFLAGS which contain -fno-strict-aliasing.

Until the code is cleaned up, just add -fno-strict-aliasing to the
CFLAGS of these for the tinderboxes' sake, allowing the rest of the
tree to have -Werror enabled again.
 2007-11-20 02:07:30 +00:00
John Birrell
102c7c9299 Use intermediate pointers to avoid strict alias type check failures 
using gcc 4.2. This is required for tinderbox which doesn't have
-fno-strict-aliasing in it's custom CFLAGS.
 2007-11-20 01:51:20 +00:00
Olivier Houchard
e93073b33d Change the casts from (pthread_mutex_t *) to (void *) to keep gcc quiet. 
Anybody with a cleaner solution feel free to change it.
 2007-11-19 21:57:28 +00:00
John Baldwin
790c2471b9 Bump up the number of ttys supported by pty(4) to 512 by making use of 
[pt]ty[lmnoLMNO][0-9a-v].

MFC after:	3 days
Reviewed by:	rwatson
 2007-11-19 20:49:42 +00:00
David Xu
4940ef4ad0 MFlibthr: 
In _pthread_key_create() ensure that libkse is initialized.
 2007-11-19 02:09:07 +00:00
Mike Makonnen
f378c687da Capitalization 2007-11-18 18:44:35 +00:00
John Birrell
26fc37307b Constify the first argument to expand_number() so that it can 
be called with a const without the compiler grisling.
 2007-11-18 02:20:02 +00:00
Olivier Houchard
f0aa484471 Build libthread_db for arm as well. 
MFC after: 1 week
 2007-11-17 21:29:02 +00:00
Olivier Houchard
ebbcec3ad2 Add arm support in libthread_db. 2007-11-17 21:27:53 +00:00
Maksim Yevmenkin
1f3e4b39fd Fix bug in handling SDP continuation state. 
Reported by:	Eric Millbrandt emillbrandt at coldhaus dot com
MFC after:	3 days
 2007-11-16 15:13:12 +00:00
Ruslan Ermilov
faad9cae56 Fix bad rule and bad dependency for nsparser.h that can 
cause the build to fail because y.tab.c can have a more
recent modification time than y.tab.h, and the bad rule
relied on the opposite.

(The last write to y.tab.c by yacc(1) happens after the
last write to y.tab.h, according to truss(1).)

Reported by:	kensmith
 2007-11-15 22:39:15 +00:00
Rong-En Fan
a964324e72 - Include runetype.h for _RuneLocale_ 2007-11-07 14:45:48 +00:00
Marius Strobl
9a2706abcc In _pthread_key_create() ensure that libthr is initialized. This 
fixes a NULL-dereference of curthread when libstdc+ initializes
the exception handling globals on archs we can't use GNU TLS due
to lack of support in binutils 2.15 (i.e. arm and sparc64), yet,
thus making threaded C++ programs compiled with GCC 4.2.1 work
again on these archs.

Reviewed by:	davidxu
MFC after:	3 days
 2007-11-06 21:50:43 +00:00
David Xu
56b45d9067 Avoid doing adaptive spinning for priority protected mutex, current 
implementation always does lock in kernel.
 2007-10-31 01:50:48 +00:00
David Xu
55f18e070f Don't do adaptive spinning if it is running on UP kernel. 2007-10-31 01:44:50 +00:00
David Xu
e8ef3c283b Restore revision 1.55, the kris's adaptive mutex type. 2007-10-31 01:37:13 +00:00
Giorgos Keramidas
98eb34a74c Remove an extra (commented out) .Sh HISTORY section heading, to avoid 
the risk of "shadowing" the following .El request, and delete an empty
line to fix mdoc warnings.

MFC after:	3 days
 2007-10-30 16:05:40 +00:00
Giorgos Keramidas
6f1743c543 Remove an extra (commented out) .Sh HISTORY section heading, to avoid 
the risk of "shadowing" the following .El request, strip eol spaces
and delete an empty line to fix mdoc warnings.

MFC after:	3 days
 2007-10-30 15:58:39 +00:00
Giorgos Keramidas
81c0ade6b6 Change a .PP request to a valid .Pp mdoc request, and remove an extra 
(but commented out) .Sh HISTORY section heading.

MFC after:	3 days
 2007-10-30 15:56:12 +00:00
Giorgos Keramidas
22b9ec401b Remove duplicate (but commented out) .Sh HISTORY section heading. 
It almost "shadows" the ending .El request of a list, which seems
to have caused mdoc buglets in some gss_*.3 manpages.

MFC after:	3 days
 2007-10-30 15:52:55 +00:00
Giorgos Keramidas
2b39bec3a7 Remove duplicate (but commented out) .Sh HISTORY section heading 
and add a missing .El request.

MFC after:	3 days
 2007-10-30 15:45:19 +00:00
Giorgos Keramidas
daa8e8bf02 Remove extraneous empty lines, to fix mdoc warnings. 
MFC after:	3 days
 2007-10-30 15:36:40 +00:00
Giorgos Keramidas
ef824a431f mdoc fix: remove extraneous empty line. 
MFC after:	3 days
 2007-10-30 15:31:41 +00:00
Giorgos Keramidas
3f85a8b4c5 Bump manpage date, missed during the last change. 
MFC after:	3 days
 2007-10-30 15:28:43 +00:00
Giorgos Keramidas
6aaa40b521 The .Fx request doesn't recognize 2.2.0, so use ".Fx 2.2" 
MFC after:	3 days
 2007-10-30 15:27:45 +00:00
Giorgos Keramidas
aada4cf330 Remove extraneous .Ef request. 
MFC after:	3 days
 2007-10-30 15:26:20 +00:00